Gregg Feinerman, MD, FACS

Board-Certified Ophthalmologist & Refractive Surgeon

Medical articles, surgical insights, and patient education from Feinerman Vision

Gregg Feinerman MD, FACS

Dr. Gregg Feinerman is a board-certified ophthalmologist, refractive surgeon, and the founder of Feinerman Vision in Newport Beach, CA. He served as Chief Senior Resident at UC Irvine and completed his fellowship in refractive surgery at the internationally recognized Gimbel Eye Center in Calgary, Canada. Dr. Feinerman has pioneered several surgical firsts in California and the United States, including being the first surgeon in Orange County to implant the Crystalens accommodating IOL after FDA approval, and the first in the country to offer it to Medicare patients, the first surgeon on the West Coast to perform bladeless all-laser LASIK using the Ziemer femtosecond laser, and the first in Orange County and greater Los Angeles to perform WaveLight® Plus LASIK following FDA approval in 2025. He has served as Principal Investigator on more than ten FDA-registered clinical trials and performed the most surgical cases among all participating sites in two separate multicenter FDA trials published in the Journal of Cataract and Refractive Surgery (2015) and the Journal of Refractive Surgery (2024). He has contributed chapters to five ophthalmology textbooks and presented at conferences in the United States, Europe, Asia, and Australia. In 2010, Bausch & Lomb recognized him with the Crystalens Millennium Society Award as one of the top five Crystalens surgeons in the United States. Dr. Feinerman is also the founder of Operation In-Sight, a nonprofit providing free vision-restoring surgeries to underserved patients, with surgical missions to Vietnam and Cambodia.

Gregg Feinerman, MD, FACS

Dr. Gregg Feinerman is a board-certified ophthalmologist, refractive surgeon, and founder of Feinerman Vision.

Gregg Feinerman MD, FACS

Dr. Gregg Feinerman is a board-certified ophthalmologist, refractive surgeon, and the founder of Feinerman Vision in Newport Beach, CA. He served as Chief Senior Resident at UC Irvine and completed his fellowship in refractive surgery at the internationally recognized Gimbel Eye Center in Calgary, Canada. Dr. Feinerman has pioneered several surgical firsts in California and the United States, including being the first surgeon in Orange County to implant the Crystalens accommodating IOL after FDA approval, and the first in the country to offer it to Medicare patients, the first surgeon on the West Coast to perform bladeless all-laser LASIK using the Ziemer femtosecond laser, and the first in Orange County and greater Los Angeles to perform WaveLight® Plus LASIK following FDA approval in 2025. He has served as Principal Investigator on more than ten FDA-registered clinical trials and performed the most surgical cases among all participating sites in two separate multicenter FDA trials published in the Journal of Cataract and Refractive Surgery (2015) and the Journal of Refractive Surgery (2024). He has contributed chapters to five ophthalmology textbooks and presented at conferences in the United States, Europe, Asia, and Australia. In 2010, Bausch & Lomb recognized him with the Crystalens Millennium Society Award as one of the top five Crystalens surgeons in the United States. Dr. Feinerman is also the founder of Operation In-Sight, a nonprofit providing free vision-restoring surgeries to underserved patients, with surgical missions to Vietnam and Cambodia.

Why Dr. Feinerman's Perspective Matters

Board Certified Ophthalmologist
Fellowship-Trained Refractive Surgeon
Principal Investigator on 10+ FDA Clinical Trials

About Dr. Feinerman

Dr. Feinerman has pioneered several surgical firsts in California and the United States. He was the first surgeon on the West Coast to perform bladeless, all-laser LASIK using the Ziemer femtosecond laser, setting a new standard for safety and precision in refractive surgery.

In 2025, he became the first surgeon in Orange County and greater Los Angeles to perform WaveLight® Plus LASIK following FDA approval, bringing the most advanced laser vision correction technology available to patients in Southern California.

Over the course of his career, Dr. Feinerman has completed thousands of successful procedures and has earned the trust of physicians, pilots, athletes, and celebrities who demand both precision and exceptional care.

Gregg Feinerman, MD, FACS

Board-certified ophthalmologist, refractive surgeon, and founder of Feinerman Vision in Newport Beach, CA.

Articles by Dr. Gregg Feinerman

Illustration of an EVO ICL implantable collamer lens being placed behind the iris of a blue eye

Gregg Feinerman, MD, FACS, Feinerman Vision, Newport Beach

For most of my career, “getting your eyes fixed” meant LASIK. That is changing, and the data now confirm what I have watched happen in my own exam rooms.

On September 10, 2026, STAAR Surgical, the maker of the EVO ICL™, released a seven-market report called The Future of Refractive Surgery. Its headline United States finding: laser vision correction procedures have fallen 52 percent since 2022, four consecutive years of double-digit decline, while EVO ICL adoption rose 76 percent over the same period and more than tripled its share of the market.

United States, 2022 to 2026

Laser vision correction procedures: down 52 percent. EVO ICL adoption: up 76 percent, with market share more than tripled. Source: STAAR Surgical, The Future of Refractive Surgery, September 2026, company analysis of US procedure volume and EVO ICL unit sales, FY2022 to FY2026.

My practice is a window on the same trend. In the second quarter of 2025, EVO ICL accounted for 18 percent of our refractive surgery patients. In the second quarter of 2026, it was 36 percent. Our numbers doubled in one year, and I did not change how I evaluate anyone. Patients are arriving with different questions and different priorities.

This post explains what is driving the shift, where LASIK still belongs, and how to think about your own decision if you are in your 20s or 30s and researching vision correction right now.

What the numbers actually show

A word on sourcing before the figures. STAAR manufactures the EVO ICL, so this is industry research, not an independent academic study. I am citing it because the volume data align with what surgeons across the country have been reporting for several years and with what I see in my own practice, and because it is the first report to put the pieces together across markets. Read it with that context.

United States procedure volumes (2022 to 2026). Laser procedures indexed to 2022 fell to roughly 48 percent of their 2022 level. EVO ICL units rose to roughly 176 percent of their 2022 level. (STAAR, The Future of Refractive Surgery, 2026, page 4.)

What high-prescription patients are choosing. In a 2024 study by the American-European Congress of Ophthalmic Surgery covering 1,882 procedures across 19 US practices, the implantable collamer lens was the most common choice, at 72 percent, for patients at -8.00 diopters and above. For prescriptions beyond -10.00, the lens was chosen 81 percent of the time in 2025, up from 67 percent in 2022. (AECOS practice-pattern data as reported by STAAR, 2026, pages 5 and 6.)

What patients say they want. In STAAR’s US consumer survey of 1,800 adults (fielded August 2025), 86 percent want to be free of glasses and contacts, 61 percent are attracted to a procedure that is reversible, and 54 percent say they are not open to laser correction. The top barriers to laser were safety concerns (27 percent) and fear of the procedure (21 percent). Cost was named by 4 percent. Only 19 percent had heard of the implantable collamer lens unprompted, compared with 79 percent for LASIK. (Pages 3 and 19.)

That last pair of numbers is the story in miniature. Most Americans who want vision correction have never heard of the option that is growing fastest.

Independent corroboration. Market Scope, the ophthalmic industry’s independent market research firm, is not affiliated with any lens or laser manufacturer. In January 2026 it reported that US refractive surgery volumes hit a record low in 2025, noting that the US market “has experienced a sharper drop since 2021” than the global market. Its quarterly surgeon surveys put US refractive procedure volume down 17.3 percent in the fourth quarter of 2025 and down 9.5 percent in the first quarter of 2026, each compared with the same quarter a year earlier, while cataract and lens procedures grew. For scale, Market Scope has placed the US LASIK peak at roughly 1.4 million procedures a year around 2000 to 2001; the market today is a fraction of that.

The trend did not begin with this report. In 2024, refractive surgeons interviewed by EyeWorld described “a pretty substantial shift from LASIK to IOL-based procedures, such as ICLs, and refractive lens exchange,” with patients who would have had LASIK a few years earlier now being recommended a lens. Japan, the most mature lens market, already performs more than half of its refractive procedures with an implantable lens.

In our practice, one year apart

EVO ICL as a share of Feinerman Vision refractive surgery patients: 18 percent in the second quarter of 2025, 36 percent in the second quarter of 2026. Same surgeon, same evaluation, different patient priorities.

Four reasons the shift is happening

1. Candidacy widened. LASIK and PRK correct vision by removing corneal tissue. The higher your prescription and the thinner your cornea, the less margin there is, which is why so many people were told “you are not a candidate” and stopped looking. EVO ICL is a Collamer® lens placed inside the eye, behind the iris and in front of your natural lens. It removes no corneal tissue, so thin corneas are not a barrier, and it is FDA approved for nearsightedness from -3.00 to -20.00 diopters, with or without astigmatism, in adults 21 to 60. People who were turned away from LASIK are now candidates for something. EVO ICL for thin corneas and EVO ICL for high prescriptions cover each case in detail.

2. Reversibility became a priority. Six in ten US survey respondents said a reversible option appeals to them. LASIK permanently reshapes the cornea. EVO ICL is reversible: the lens can be removed or exchanged by a surgeon if your needs change. That matters most decades later, when the natural lens ages and lens replacement surgery becomes the conversation. A prior EVO ICL preserves the full menu of replacement lenses, including trifocals. Prior LASIK usually narrows that menu to a monofocal or the Light Adjustable Lens™, both because LASIK, particularly for higher prescriptions, degrades optical quality, and because lens power calculations are less predictable after any corneal laser procedure. I wrote about a patient who lived this out in the 20-year reversibility case study, and the long-term logic is laid out in EVO ICL and your future choices.

3. Dry eye moved to the front of the conversation. Patients now arrive having read first-person accounts of post-LASIK dry eye. LASIK creates a corneal flap and cuts corneal nerves, and for most people the effect is temporary, but not for everyone. EVO ICL involves no flap and leaves the corneal nerves largely undisturbed, so its dry eye impact is lower. In a published study of patients 5 to 15 years after surgery, laser vision correction patients showed significantly higher rates of tear hyperosmolarity, a marker of tear film instability, than non-surgical controls, while implantable collamer lens patients showed no difference from controls (Gjerdrum B, et al. Clin Ophthalmol. 2020;14:269-279).

4. The research happens before the consultation. More than half of US respondents said they would use a search engine to research vision correction, and a quarter would ask an AI tool. Patients are walking in already knowing that SMILE, PRK, and LASIK all remove corneal tissue, already aware that a lens-based option exists, and already asking about the trade-offs. That is a healthy starting point for a medical decision, and I welcome it.

Where LASIK still belongs

None of this means LASIK is obsolete, and I would be misleading you if I said so. I perform LASIK with WaveLight® Plus, and for the right eye it produces exceptional results: in the published outcomes study, 100 percent of treated eyes saw 20/20 or better and half saw 20/12.5 (He C, Bala C. J Cataract Refract Surg. 2023;49(11):1140-1146). The WaveLight Plus page explains the ray-tracing technology behind those numbers.

LASIK remains a strong choice when a patient has a stable, moderate prescription, a healthy cornea with adequate thickness, no meaningful dry eye history, and is under age 45. It is fast (about 15 minutes for both eyes), recovery is quick, and at Feinerman Vision it carries a lifetime enhancement guarantee. If that describes your eyes, LASIK may well be the better answer, and I will tell you so.

The change in the market is not that LASIK stopped working. It is that the population LASIK serves best turned out to be narrower than the marketing of the 2000s suggested, and the alternative for everyone else finally matured.

If you are over 40, the shift is about a different lens

The report focuses on laser versus phakic lens, but there is a parallel movement among older patients toward refractive lens exchange (RLE). Beginning in the 40s, the natural lens stiffens and clouds, a process I describe to patients as dysfunctional lens syndrome. Reading vision fades, night vision degrades, and no corneal procedure fixes the underlying cause. That is why I generally do not recommend LASIK over 45; the aging lens, not the cornea, is usually the real problem.

RLE replaces the aging lens with an implant chosen for your anatomy and goals, using the same platform as cataract surgery but performed earlier and electively. Between roughly 45 and 50, when the natural lens is still clear, EVO ICL is often the better fit; past 50, RLE usually is. If this describes you, the refractive lens exchange page is the right starting point, and the EVO ICL versus RLE comparison explains how age determines which lens approach fits.

What the shift costs, and what it does not

A lens procedure costs more than a laser procedure up front, and you deserve the figures rather than a “call for pricing” page.

Feinerman Vision pricing, September 2026

EVO ICL: $9,450 for both eyes, all-inclusive (consultation and imaging, the lenses, the procedure, and every post-operative visit). LASIK: from $4,100 for both eyes. WaveLight Plus LASIK: $5,100. Refractive lens exchange: priced per eye by lens choice. All pricing is subject to change.

Refractive lens exchange is priced per eye and depends on the lens selected; the RLE cost page shows ranges by lens type. Advertised laser prices elsewhere often exclude pre-operative testing, enhancements, and follow-up care, so ask what is included before comparing any two numbers. The full breakdowns are on the EVO ICL cost page and the LASIK cost page.

How I evaluate this in the exam room

The trend tells you what the population is doing. It does not tell you what your eyes need. In a consultation I evaluate candidacy across every modern option, LASIK, PRK, SMILE, EVO ICL and Refractive Lens Exchange.

For EVO ICL specifically, the step that separates a good result from a great one is lens sizing, which we do with UBM AI™ ultrasound biomicroscopy and ICLguru® rather than estimating from surface measurements. I have worked with the implantable collamer lens for more than 20 years: I was the first surgeon in California to implant the Visian ICL after its 2005 FDA approval and among the first in California with EVO ICL after its 2022 approval. More than 4 million implantable collamer lenses have been sold worldwide, and among patients studied, the implantable collamer lens carries a 99.4% satisfaction rate.

Whatever we choose, you get one surgeon from consultation through every follow-up. I call you the evening of surgery, see you myself the next morning, and ask you to save my cell phone number so you can reach me directly with any question.

Frequently asked questions

Is LASIK really declining in the United States?

Yes. STAAR Surgical’s 2026 report documents a 52 percent decline in US laser vision correction procedures from 2022 to 2026, with double-digit losses each year. Surgeons have described the same shift toward implantable lenses and refractive lens exchange since at least 2024. LASIK remains an excellent procedure for the right candidate; the decline reflects patients and surgeons choosing lens-based options for eyes that laser serves less well.

Why are more people choosing EVO ICL over LASIK?

The most common reasons are wider candidacy (thin corneas and prescriptions up to -20.00 diopters are not barriers), reversibility, lower dry eye impact because no corneal flap is created, and the fact that a prior EVO ICL preserves every lens option for later in life. See EVO ICL vs. LASIK for the full comparison.

Is EVO ICL reversible?

EVO ICL is reversible. The lens can be removed or exchanged by a surgeon if your needs change. That preserves your future options, including trifocal lenses at the time of lens replacement surgery.

Does the shift toward lenses mean I should not get LASIK?

Not necessarily. If you have a stable, moderate prescription, a healthy cornea of adequate thickness, no significant dry eye, and are under about 45, LASIK with WaveLight Plus may be the better option for you. Candidacy is determined at an in-person evaluation, not by a trend.

What about SMILE or PRK instead of LASIK?

SMILE and PRK are also corneal laser procedures that remove tissue, so they are usually ruled out for the same reasons LASIK is: corneas that are too thin or prescriptions that are too high. PRK can be an option for mildly thin corneas. Dr. Feinerman evaluates every patient across LASIK, PRK, SMILE, EVO ICL and Refractive Lens Exchange.

I am over 45. Does any of this apply to me?

Yes. The shift from laser to lens applies to you too; what changes with age is which lens. Between roughly 45 and 50, EVO ICL is often still the better fit: it is FDA approved through age 60 and corrects distance vision without touching the cornea or the natural lens. Past 50, the natural lens itself has usually begun to stiffen and cloud, and refractive lens exchange (RLE) addresses that directly by replacing it with a lens chosen for your eyes. Dr. Feinerman generally does not recommend LASIK over 45; the aging lens, not the cornea, is usually the real problem. The right approach depends on your prescription and the condition of your natural lens, which is determined at the evaluation.

Related reading

Find out which side of the shift your eyes are on

The market is moving toward lens-based vision correction because, for a large share of eyes, it is the better fit. Whether yours is one of them is a question for an examination, not a trend line. The candidacy quiz covers every procedure I evaluate. Book your evaluation with Dr. Feinerman in Newport Beach: (949) 631-4780 or FeinermanVision.com.

Adult in his 50s able to track the golfball after refractive lens exchange

It is week three. The surgery went well, the distance chart is crisp, and yet the headlights on the 55 have rings around them and the phone at arm’s length takes a beat to come into focus. You start wondering whether you chose the wrong lens.

In most cases, what you are experiencing is not a problem with the lens or the surgery. It is your brain doing the work it has to do after any presbyopia-correcting lens, and it is on schedule. That process has a name, neuroadaptation, and it is measurable on brain imaging.

This post explains what neuroadaptation is, what the timeline usually looks like, what the newest research says about whether it can be sped up, and, just as important, how to tell the difference between normal adaptation and a problem that needs a fix.

What Neuroadaptation After Cataract Surgery Actually Is

Your eye is a camera. Your brain is the darkroom. For decades, your brain learned to build a picture from one kind of image: light focused at a single distance by your natural lens, with your reading glasses or bifocals doing the rest.

A presbyopia-correcting intraocular lens changes the raw image. A trifocal splits incoming light into three focal points, distance, intermediate and near, at the same time. An extended depth of focus lens stretches one focal point into a continuous range. Either way, the retina now receives a layered image it has never seen before, and the brain has to learn a new set of rules for which layer to attend to and which to ignore.

Neuroadaptation is that learning. In the first weeks it takes real cerebral effort. Over time, thanks to the brain’s plasticity, the sorting becomes automatic and the image feels like your vision again rather than something you are looking through.

Why a Trifocal or EDOF Lens Asks More of Your Brain Than a Monofocal

A standard monofocal lens sends one clean image to the retina. There is little to adapt to beyond the brightness and color of a world without a yellowed cataract in front of it.

A multifocal or trifocal lens, by design, sends every focal plane at once. The near-focused light is still present when you look at a distant headlight; the brain has to suppress it. That suppressed light is what you see as a halo or a ring at night. The lens has not malfunctioned. It is delivering exactly what it promised, and the brain has not yet learned to filter it.

This is why the halos are most noticeable early, most noticeable at night when pupils are large and contrast is low, and why they typically fade rather than disappear all at once. The optics do not change after surgery. The brain does.

I choose lenses with this in mind. Patients with significant dry eye, irregular corneas, macular disease, or expectations that no lens can meet are steered to a different design, because a brain cannot adapt its way past a poor optical match. When the match is right, adaptation is the expected path. You can read how I weigh those tradeoffs on our Refractive Lens Exchange page.

The Neuroadaptation Timeline: Weeks 1 to 3, Month 3, Month 6

Every patient adapts on their own clock, but the shape of the curve is consistent enough, in the published research and in my exam chair, that I walk every lens patient through it before surgery.

Weeks 1 to 3: peak effort. Distance vision is usually good quickly. Halos and glare around lights are at their most noticeable. Reading may feel effortful, as if you are searching for the right focus. Brain imaging confirms this is the period of highest cerebral work: at three weeks, patients with multifocal lenses show heightened activity in the regions that handle attention and effortful learning (Rosa et al., J Cataract Refract Surg, 2017). It is also the period when patients most often call me worried.

Month 3: the brain settles. In a resting-state imaging study, visual cortex activity in multifocal lens patients dipped at one week and returned to its preoperative baseline by three months (Zhang et al., Front Neurosci, 2021). Clinically, this is when the halos shrink or become easy to ignore and reading speed picks up. Patients often report a specific day when they realize they drove home at night without thinking about the lights.

Month 6: normalized, and still improving. By six months the effortful brain activity seen at three weeks had normalized, glare no longer degraded the visual signal, and symptom scores, acuity and reading performance had all improved, even though the lens optics themselves had not changed (Rosa et al., 2017). Function keeps climbing past the point where the brain has settled: in a refractive lens exchange series, near vision improved significantly between one and six months while distance vision and the prescription stayed the same (Goes, J Refract Surg, 2008), and an older multifocal series found the share of patients bothered by halos still falling between six months and two years (Forte et al., Eur J Ophthalmol, 2009).

For most patients, by six months the new vision is simply their vision. A small number never fully adapt, and for them there is a well-established path forward, which I cover below.

How Often Adaptation Fails

In a 15-year dataset of 109,274 presbyopia-correcting lens implants, only 0.63% required a lens exchange for dissatisfaction, and those patients still achieved a mean uncorrected distance vision of about 20/25 afterward (Kazakos et al., J Cataract Refract Surg, 2026). Persistent non-adaptation is uncommon, and even the rare unhappy patient has a fix.

What Brain Imaging Shows About Neuroadaptation After Cataract Surgery

This is not a theory surgeons tell patients to buy time. It has been watched happen.

Researchers in Portugal scanned 30 patients with functional MRI at three weeks and again at six months after bilateral multifocal lens implantation, alongside a control group. At three weeks, the scans showed increased activity in the brain’s attention network, the cingulate cortex and the caudate nucleus, regions involved in effortful focus, procedural learning and cognitive control. By six months that activity had normalized. The lens optics, measured directly, had not changed at all; what changed was the brain (Rosa et al., J Cataract Refract Surg, 2017). A separate Chinese study using resting-state imaging found the same arc on a slightly faster clock, with visual cortex activity back to baseline by three months (Zhang et al., Front Neurosci, 2021).

In plain terms: at week three, your brain is working hard and the scan can see it. By month three to six, it has stopped needing to.

Can You Speed It Up? What the New Visual Training Research Suggests

The most interesting recent question is whether the brain can be coached through adaptation faster. Early evidence says perhaps.

A Spanish research group ran a blinded, randomized, placebo-controlled trial in 60 patients who had just received trifocal lenses in both eyes. Half completed a three-week, home-based visual training program on a tablet, a driving game that periodically asks the player to identify the orientation of faint striped patterns, 20 sessions of about 30 minutes. The other half played a placebo version.

Visual acuity was similar in both groups, but the trained group finished with significantly better contrast sensitivity at the medium and high spatial frequencies that matter for reading fine print and seeing in dim light, and reported fewer bothersome visual symptoms. In a small imaging subset, the trained patients’ scans shifted toward the lower-effort pattern described above (Piñero et al., Int Ophthalmol, 2023; Ophthalmology Times Europe, September 2026).

What the Trial Found

Three weeks of gamified visual training after bilateral trifocal implantation improved contrast sensitivity and reduced symptom bothersomeness compared with placebo training in a 60-patient randomized trial. Distance, intermediate and near acuity were not significantly different between groups (Piñero et al., 2023). Early research, one platform, and the lead author has a financial interest in the software.

The same group also reported on a handful of patients who were severely unhappy with their multifocal vision six months or more after surgery. After the training program, their corrected vision improved and their halos, glare and starbursts became less bothersome. Seven eyes is a case series, not proof, but it points in a hopeful direction for the patients who worry me most.

I want to be careful here. This is early research, it involved one specific lens design, and the study’s lead author has a financial interest in the training software. I am not recommending a product. What I take from the data is simpler: neuroadaptation is a real, trainable process, and the everyday version of training is already available to every patient. Use your eyes. Read at the distance the lens was designed for. Drive at night in familiar places once you are cleared to drive. Give the brain the repetitions it needs.

When It Is Not Neuroadaptation: The Honest Exceptions

Neuroadaptation is the most common explanation for early visual complaints after a presbyopia-correcting lens. It is not the only one, and telling a patient to “give it time” when the real problem is fixable is a failure of care. These are the things I rule out at every postoperative visit:

Dry eye. An unstable tear film blurs and scatters light before it ever reaches the lens. This is the single most common reason a good lens performs badly, and it is treatable.

Residual prescription. A small leftover nearsightedness, farsightedness or astigmatism degrades a multifocal lens far more than it degrades a monofocal. This is measurable, and the fix ranges from glasses for specific tasks to a laser touch-up to, in some cases, a lens adjustment.

Posterior capsule opacification. The thin membrane behind the lens can cloud in the months after surgery. A brief laser procedure clears it.

The wrong lens for the eye. Occasionally an eye that looked like a good candidate turns out not to be, because of subtle corneal irregularity or early macular change. This is the group the 0.63% figure above describes, and lens exchange is the established solution.

If your symptoms are getting worse instead of gradually better, or if they are the same in both eyes but one eye seems clearly weaker, that pattern deserves an examination, not more waiting. I wrote a full guide to that decision in Unhappy With a Multifocal Lens? The 10% Problem, Explained.

How I Set Patients Up to Adapt

Most of the work of neuroadaptation happens before surgery, in lens selection.

I measure the cornea’s higher-order aberrations, tear film, pupil size and macula, and I ask how you actually spend your day: the dashboard at night, the computer, the menu in a dim restaurant. That conversation decides whether you get a trifocal such as Clareon® PanOptix® Pro, FINEVISION HP or enVista Envy™, an extended depth of focus lens such as Clareon® Vivity® or TECNIS PureSee™, a blended pair with a different design in each eye, or a monofocal. No single lens is best for everyone, or even for both eyes of the same person.

For patients who want the shortest possible adaptation, or who have had prior LASIK, PRK or RK, the Light Adjustable Lens™ (LAL®) takes a different route entirely: the prescription is fine-tuned with light treatments after your eye has healed, so the brain adapts to a lens that has already been matched to the eye, rather than to a preoperative prediction. That comparison is the first question I ask at every consultation; see Fixed vs. Adjustable? for how I frame it.

Who You Call at Week Three

I perform every consultation and every surgery myself. I call you the evening of surgery, see you myself the next day, and ask every patient to save my cell phone number so they can reach me directly. When the halos have you worried at week three, the person answering the phone is the person who chose your lens. That is the way this practice has worked since 2001.

The same neuroadaptation principles apply whether the lens is placed for a cataract or earlier, as a refractive lens exchange for dysfunctional lens syndrome. The eye heals in days. The brain takes the months. Knowing that in advance is what turns week three from a scare into a milestone.

FAQs About Neuroadaptation After Cataract Surgery

How long does neuroadaptation take after cataract surgery?

Brain imaging studies show the effortful phase peaks in the first three weeks, brain activity returns to baseline by about three months, and the pattern is fully normalized by six months. Symptoms and near vision often keep improving after that. The exact timeline varies with the lens design, the health of the eye’s surface, and how much the patient uses their new vision at all distances.

Are halos after a trifocal lens normal?

Yes, especially in the first weeks and at night. They are the near-focused light the brain has not yet learned to filter. For most patients they fade into the background over the following months. Halos that worsen over time, or that differ sharply between eyes, should be examined.

Can I do anything to help my brain adapt faster?

Use your eyes at every distance the lens was designed for, keep the ocular surface healthy, and attend your follow-up visits so anything that is not neuroadaptation gets caught early. Early research on gamified visual training is promising but not yet something I recommend as a routine step.

What if I never adapt to my multifocal lens?

It is uncommon. In a series of more than 109,000 presbyopia-correcting implants, 0.63% were exchanged for dissatisfaction, and those patients averaged about 20/25 uncorrected distance vision afterward. Before considering exchange, I treat dry eye, correct any residual prescription, and clear any capsule haze, because those fix the majority of complaints.

Does the Light Adjustable Lens require neuroadaptation?

Less of it. The Light Adjustable Lens is a monofocal-type optic whose power is fine-tuned after surgery, so the brain adapts to an image that has already been matched to your eye rather than to a layered multifocal image. It still requires UV-protective glasses until lock-in and a series of office light treatments.

If week three has you second-guessing your lens, do not wait it out alone. Schedule your consultation with Dr. Feinerman at (949) 631-4780 or through FeinermanVision.com.

Gregg Feinerman, MD, FACS, is the founder and sole surgeon of Feinerman Vision in Newport Beach, California. This article is educational and does not diagnose any condition or guarantee any outcome. Individual results vary, and candidacy is determined only by a comprehensive evaluation.

Related Reading

References

  1. Kazakos DC, et al. J Cataract Refract Surg. 2026;52(8):757-765.
  2. Rosa AM, Miranda ÂC, Patrício MM, et al. Functional magnetic resonance imaging to assess neuroadaptation to multifocal intraocular lenses. J Cataract Refract Surg. 2017;43(10):1287-1296. doi: 10.1016/j.jcrs.2017.07.031.
  3. Piñero DP, Maldonado-López MJ, Molina-Martin A, et al. Randomised placebo-controlled clinical trial evaluating the impact of a new visual rehabilitation program on neuroadaptation in patients implanted with trifocal intraocular lenses. Int Ophthalmol. 2023;43(11):4035-4053. doi: 10.1007/s10792-023-02809-9.
  4. Piñero DP. Visual training may ease neuroadaptation to presbyopia-correcting IOLs. Ophthalmology Times Europe. September 5, 2026.
  5. Zhang L, et al. Front Neurosci. 2021. doi: 10.3389/fnins.2021.648863.
  6. Goes FJ. J Refract Surg. 2008;24(3). doi: 10.3928/1081597X-20080301-05.
  7. Forte R, et al. Eur J Ophthalmol. 2009;19(3). doi: 10.1177/112067210901900309.
50 year old woman struggling to read the menu at a Newport Beach restaurant.

If you are farsighted, you have probably had a strange relationship with your eyes. In your 20s and 30s you may have passed every eye exam without glasses, quietly working harder than everyone else to keep the world in focus. Then, somewhere in your 40s, the effort stopped working. Reading went first. Then the computer. Then, to your surprise, distance too. Now you wear glasses for everything, and the LASIK consultation you finally booked ended with “you are not a great candidate.”

That last part is common, and it is not the end of the road. For farsighted patients over 50, the lens-based procedure called refractive lens exchange (RLE) is often the better fit than any laser, and for reasons that go beyond seeing clearly. The anatomy that made you farsighted also carries a hidden risk that RLE happens to address. This post explains both.

Why farsighted eyes stop coping in your 40s

Farsightedness (hyperopia) usually means the eye is a little too short from front to back. Light focuses behind the retina rather than on it. A young natural lens can compensate: it flexes to add focusing power, which is why many farsighted people see well without glasses for decades.

Starting in the mid-40s, that lens stiffens. It can no longer add the extra power, and the farsightedness that was always there finally shows itself. This is why farsighted patients often feel their vision “collapsed” in a few short years: the reading problem everyone gets (presbyopia) and the distance problem that was hiding (latent hyperopia) arrive together. Surgeons call the underlying process dysfunctional lens syndrome, the stage before cataract when the lens stiffens, scatters light, and loses clarity.

Why LASIK is usually the wrong tool for a farsighted patient over 50

LASIK reshapes the cornea. For a farsighted eye, that means steepening the center of the cornea, and there are limits to how much steepening a laser can do well. High hyperopic treatments are more likely to regress and more likely to degrade the quality of vision. Beyond a certain prescription, most surgeons will not perform hyperopic LASIK at all.

The bigger issue is age. Over 45, I generally do not recommend LASIK, because the aging lens, not the cornea, is usually the real problem. In a farsighted patient the lens is doubly the problem: it has stopped compensating for the short eye and it has stopped focusing up close. Reshaping the cornea addresses neither. Even a technically perfect LASIK result in a 55-year-old hyperope leaves the lens aging behind it, with reading glasses now and a cataract later.

Refractive lens exchange for farsightedness: what it does

RLE replaces the aging natural lens with an intraocular lens (IOL) chosen for your anatomy and your life. It is the same operation as modern cataract surgery, performed earlier and on your schedule, before a cataract forms. It takes 15 to 20 minutes per eye, and I perform both eyes the same day.

For a farsighted eye, RLE has a specific advantage: there is no upper limit on the prescription it can correct. As a Duke University refractive surgeon put it in a 2026 review, corneal lasers have a ceiling on how much hyperopia they can treat, but “with RLE, there’s actually no limit to the refractive error that we can treat” (Review of Ophthalmology, August 2026). Distance, intermediate, near, and astigmatism can all be addressed in one procedure, and a replaced lens can never develop a cataract.

And because a farsighted patient who was never a LASIK candidate has an untouched cornea, the full lens menu is open: monofocal, enhanced monofocal, extended depth of focus, trifocal, and the Light Adjustable Lens™ (LAL). I often use a different lens in each eye, blended by the brain into one continuous range. Lens choice is personalized; no single lens is best for everyone.

Patient outcomes: high satisfaction in farsighted RLE

A 2026 review of RLE indications reported that patient satisfaction in high hyperopia is generally high when candidates are selected appropriately (Maldonado et al., Archivos de la Sociedad Española de Oftalmología, 2026). Retinal detachment, the risk I discuss most for RLE, runs about 1 in 500 overall but is lower in the short eyes of farsighted patients and higher in long, nearsighted eyes (Passaro et al., British Journal of Ophthalmology, 2025). Our outcomes are published at feinermanvision.com/results.

Refractive lens exchange for farsightedness may also prevent angle-closure glaucoma

Here is the part most farsighted patients have never been told.

A short eye is crowded. The front chamber of the eye (the fluid-filled space between the cornea and the iris) is shallower than average, and the drainage angle where fluid exits the eye is narrower. As the natural lens thickens with age, it pushes the iris forward and crowds that angle further. In some eyes the angle narrows enough to raise pressure, and in a few it can close, which is the mechanism of narrow-angle (angle-closure) glaucoma. Farsighted patients are the group most at risk, and many have no idea because a narrowing angle causes no symptoms until it causes a problem.

Removing the thickened natural lens and replacing it with a thin IOL deepens the front chamber and opens the angle. This is not a side effect; it is anatomy. A lens implant is a fraction of the thickness of a 55-year-old natural lens.

Clinical data: the EAGLE trial

The EAGLE randomized trial, published in The Lancet, compared removing the natural lens against the traditional laser iridotomy as the first treatment for primary angle closure and angle-closure glaucoma. Lens removal was more effective and more cost-effective (Azuara-Blanco et al., The Lancet, 2016). The same 2026 review that reported high satisfaction in hyperopic RLE noted that glaucoma risk in farsighted patients belongs in candidate selection (Maldonado et al., 2026). One of the surgeons who coined the term dysfunctional lens syndrome describes RLE in the short, hyperopic eye as potentially “curative for underdiagnosed forms of subclinical angle closure or crowded angles” (Review of Ophthalmology, August 2026).

To be clear about why I do this surgery: RLE is a refractive procedure. Patients choose it to see at distance, at arm’s length, and up close without glasses, and to take a future cataract off the table. But in a farsighted eye with a shallow chamber and a crowded angle, the surgery has a second effect that is purely anatomic. Removing the thick natural lens opens the angle, and in some of these eyes that prevents an acute angle-closure attack that was otherwise waiting to happen. Corneal surgery does nothing for that anatomy. Only lens-based surgery does.

The same principle is already standard care further down the road. When a thickening lens has crowded the angle enough to raise the eye pressure, a condition called phacomorphic glaucoma, the treatment is to remove the lens and open the angle. That is the same operation; it is simply categorized as cataract extraction rather than RLE because the lens has become the medical problem. RLE in a narrow-angled farsighted eye addresses the same anatomy earlier, for refractive reasons, before pressure ever becomes an issue. When a farsighted patient’s exam shows a shallow chamber and a narrow angle, that finding moves RLE up my list, and I tell them why.

Refractive lens exchange for farsightedness is a surgeon’s procedure

Short eyes are also more demanding to operate on, which is worth knowing when you choose where to have this done.

In a short eye, the front chamber is shallow, the natural lens is disproportionately large, and there is less room for every surgical maneuver. Lens power calculations are also less forgiving: the same small error in predicting where the implant will settle produces a larger prescription surprise in a short eye than in a normal one. Every step, from the incision to the placement of the implant, has less margin for error.

None of that should scare you. It should shape your choice of surgeon. In my practice, short eyes get modern lens-calculation formulas built for unusual anatomy, biometry cross-checked on three separate devices, a gonioscopy exam to grade the drainage angle before we decide anything, and, when the calculation is genuinely hard to trust, the Light Adjustable Lens, which lets me fine-tune the power after surgery rather than predict it.

Why experience matters in the short eye

I was the first surgeon in Southern California to implant a premium IOL after FDA approval in 2003, and I have served as principal investigator in FDA clinical trials of new lens technology, including the enVista toric IOL. In 25 years of lens surgery I have operated on a great many short, farsighted eyes. I perform every consultation and every surgery myself, I call you the evening of surgery, and I ask every patient to save my cell phone number so they can reach me directly.

One surprise to expect: the world may look smaller

There is an optical quirk that catches farsighted patients off guard, and I would rather you hear it now.

Strong plus-power glasses magnify. If you have worn them for years, your brain has adapted to a slightly enlarged world. After RLE, the correction sits inside the eye at its natural optical center, so objects return to their true size. Patients describe it as everything looking a little smaller, or the television having shrunk. Your vision is sharper, not worse; your brain simply has to recalibrate, and it does. I mention this “miniaturization” effect to every strongly farsighted patient before surgery so it does not surprise anyone afterward.

Who this is NOT for

RLE is generally for patients 50 and older. If you are farsighted in your early 40s with a lens that still focuses well, you may not need lens surgery yet; a low-to-moderate prescription with a healthy cornea may still be a LASIK question, and EVO ICL™ may be an option for some eyes. If you still have a fair amount of natural focusing ability, replacing the lens would take it away, and I would rather wait.

I also screen carefully for retinal findings, significant dry eye, and macular disease, any of which changes the lens conversation or the decision itself. And if your angle is already closed rather than narrow, that is a glaucoma diagnosis first and a refractive decision second.

Risk deserves plain language. RLE is intraocular surgery, and it carries the same rare but serious risks as cataract surgery, including infection, retinal detachment, and swelling of the retina. Most are treatable; a few can cause permanent vision loss. Short, farsighted eyes have a lower retinal detachment risk than long eyes, but the number is never zero.

Frequently asked questions

Can you get RLE if you are farsighted?

Yes. Farsighted patients over 50 are often among the best candidates for refractive lens exchange, because the aging lens is the source of both their reading and distance problems, corneal lasers have limits for hyperopia, and RLE has no upper limit on the prescription it can correct.

Is LASIK or RLE better for farsightedness?

It depends on age and anatomy. For a stable, moderate prescription in the 20s to early 40s with a healthy cornea, LASIK can work well. Over 45, the aging lens is usually the real problem, and for farsighted patients over 50, RLE is often the better fit.

Does being farsighted increase glaucoma risk?

Farsighted eyes tend to be shorter, with shallower front chambers and narrower drainage angles, which raises the risk of narrow-angle (angle-closure) glaucoma as the natural lens thickens with age. An eye exam with gonioscopy can grade the angle.

Does refractive lens exchange help narrow angles?

Replacing the thick natural lens with a thin implant deepens the front chamber and opens the angle. The EAGLE trial found lens removal more effective than laser iridotomy as first-line treatment for angle closure. RLE is performed for refractive reasons, but in farsighted eyes with narrow angles it opens the angle and prevents acute angle-closure glaucoma.

Why does everything look smaller after surgery for farsightedness?

Strong plus-power glasses magnify the world. Once the correction moves inside the eye, objects return to their true size. The effect is temporary in the sense that the brain recalibrates, and vision is sharper, not worse.

Can farsighted patients get a trifocal lens?

Usually yes, provided the cornea is healthy and the eye is otherwise a good optical candidate. Because most farsighted patients over 50 never had LASIK, their cornea is untouched and the full lens menu, including trifocals, is typically available.

Related reading

Find out what your farsighted eye actually needs

If you are farsighted, over 50, and tired of glasses for everything, the answer is in the measurements: the state of your lens, the depth of your front chamber, and the width of your angle. Book your evaluation with Dr. Feinerman in Newport Beach: (949) 631-4780 or FeinermanVision.com.

This quiz is educational and does not diagnose any condition or guarantee candidacy for any procedure. Candidacy is determined only by a comprehensive evaluation, including corneal imaging and a full eye exam, performed by Gregg Feinerman, MD, FACS. Feinerman Vision · 320 Superior Ave, Suite 390, Newport Beach, CA 92663 · (949) 631-4780 · FeinermanVision.com