See it first. Then make it permanent.

In conventional cataract surgery, your surgeon measures your eye, runs the numbers, and selects the lens power most likely to hit your visual target. Those calculations are good — but they make assumptions. They cannot account for tiny shifts that happen during surgery, or for how your eye settles over the weeks of healing. For most patients the result lands close. For some, it lands close-but-not-quite, and the only fixes are glasses, contacts, or a second procedure.

The Light Adjustable Lens flips the sequence. Implant first. Heal. Measure the vision you actually have. Then adjust the lens itself — inside your eye, without another surgery — until it is right.

The Light Adjustable Lens is built from a photosensitive silicone developed from the chemistry of Dr. Robert Grubbs, the Caltech scientist who shared the 2005 Nobel Prize in Chemistry and co-founded the company that became RxSight. The material contains light-sensitive molecules distributed through the lens. When your surgeon applies a calculated pattern of ultraviolet light with the Light Delivery Device, those molecules migrate and the lens changes shape — predictably, precisely, and painlessly.

Each adjustment refines your prescription: nearsightedness, farsightedness, and astigmatism can all be treated. When you are satisfied, a final lock-in exposure polymerizes the remaining molecules and the lens never changes again. The FDA approved the Light Adjustable Lens in 2017, and it is now used by cataract surgeons across the country — including all five Berg-Feinfield offices.

In the U.S. clinical study that led to FDA approval, patients who received the Light Adjustable Lens were about twice as likely to achieve 20/20 or better uncorrected distance vision at six months as patients who received a conventional monofocal lens. That advantage comes from the same place as everything else on this page: the prescription is finished after the eye heals, not estimated before.

Individual results vary, and no lens can promise a specific outcome. What the LAL changes is your role in the result — you see your options before anything is final, and your surgeon corrects the residual error that other lenses have to live with.

Los Angeles has one of the largest populations of early LASIK, PRK, and RK patients in the country — many treated in the 1990s and 2000s and now reaching cataract age. Previous corneal surgery changes the shape of the cornea in ways that make standard lens power formulas less reliable, which is why post-refractive patients have historically faced more refractive surprises and more secondary procedures after cataract surgery.

The Light Adjustable Lens approaches the problem from the other end. Instead of trying to out-calculate an altered cornea, your surgeon measures the actual result after healing and corrects it directly. If you have been told your cataract outcome is "harder to predict" because of prior refractive surgery, the LAL was designed for exactly your situation. Request a consultation and bring any records you have from your original procedure.

Medicare and most insurance plans cover medically necessary cataract surgery with a standard monofocal lens. The Light Adjustable Lens is a premium upgrade, so the difference — the lens itself plus the full series of light treatments — is an out-of-pocket expense not covered by insurance. There are no per-visit surprises: the adjustment and lock-in treatments are part of the quoted price.

You receive a written quote before you schedule anything. Berg-Feinfield accepts cash and major credit cards and offers CareCredit financing with monthly payment plans. For a full breakdown of cataract pricing, see cataract surgery cost in Los Angeles.