The Light Adjustable Lens offers a different approach to cataract surgery and refractive lens exchange by allowing the implanted lens prescription to be refined after surgery. At The Bochner Eye Institute, Medical Director Dr. Raymond Stein has extensive experience with cataract, refractive, and implant surgery, including advanced intraocular lens technology.
Unlike a standard intraocular lens, the Light Adjustable Lens is made from a light-sensitive material that can be adjusted after the eye has healed. This allows patients to experience their vision before the final lens power is permanently set.
What Is the Light Adjustable Lens?
The Light Adjustable Lens, or LAL, is an intraocular lens that replaces the eye’s natural lens during cataract surgery or refractive lens exchange.
After surgery, controlled ultraviolet light treatments are used to change the shape and focusing power of the implanted lens. This allows residual nearsightedness, farsightedness, or astigmatism to be refined after the eye has had time to heal.
Once the desired vision has been reached, additional light treatments permanently lock the lens power in place. The FDA describes the LAL as a photoreactive silicone intraocular lens whose power can be modified after implantation using a Light Delivery Device.
In a clinical study of 600 patients who received the Light Adjustable Lens, patients were twice as likely to achieve 20/20 distance vision at 6 months without the need for glasses compared to those who received a standard implant.
Who May Benefit From a Light Adjustable Lens?
The Light Adjustable Lens may be considered for patients undergoing cataract surgery or refractive lens exchange who want a highly customized visual result.
It may be especially useful for patients who:
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Want to reduce their dependence on glasses
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Have nearsightedness, farsightedness, or astigmatism
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Want the ability to refine their vision after surgery
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Are willing to attend additional postoperative appointments
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Can follow the required UV-protection instructions
Previous laser vision correction can make it more difficult to predict the ideal IOL power before cataract or lens surgery. The ability to adjust the lens afterward can provide additional flexibility for these patients.
Certain anatomical requirements also apply. The Bochner Eye Institute currently notes that patients generally need a pupil dilation of at least 5.3 mm so that the light treatment can reach the implant.
How Does the Light Adjustable Lens Work?
The Light Adjustable Lens is implanted during cataract surgery or refractive lens exchange in much the same way as another intraocular lens.
After the eye has healed, treatment begins with the Light Delivery Device. Controlled ultraviolet light is directed onto the implanted lens, changing its shape and adjusting the prescription.
Each treatment takes only a few minutes. Patients can then experience the adjusted vision and discuss whether additional refinement is needed.
The process generally includes:
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Cataract surgery or refractive lens exchange and implantation of the LAL
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A healing period before adjustments begin
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One or more light treatments to refine the prescription
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Assessment of the resulting vision
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Final lock-in treatments once the desired correction is reached
The number of treatments varies according to the amount of adjustment required. Current Bochner materials describe one or more adjustments followed by two final lock-in treatments.
What Can the Light Treatments Correct?
Postoperative adjustments may be used to refine:
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Nearsightedness
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Farsightedness
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Astigmatism
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The balance of vision between the two eyes
The goal is to bring the final prescription closer to the visual target selected before surgery.
No intraocular lens can guarantee complete freedom from glasses. The final result also depends on the health of the cornea, retina, optic nerve, and other structures of the eye.
Why Are UV-Protective Glasses Important?
The Light Adjustable Lens remains sensitive to ultraviolet light until the final lock-in treatments are completed. Patients must therefore wear the special UV-protective glasses supplied for the treatment period.
These glasses protect the lens from uncontrolled exposure that could change its power before the final prescription is locked. FDA documentation and current device safety information emphasize the importance of following the prescribed UV-protection regimen.
Patients should wear the supplied glasses as directed until 24 hours after the final lock-in treatment. They are generally removed only for activities such as sleeping, showering, washing the face, or applying eye drops.
Tanning beds and other sources of significant UV exposure should also be avoided during this period.
What Is the Recovery and Adjustment Period Like?
The overall adjustment process usually takes several weeks because the eye must first heal before the lens can be refined.
During this period, patients return for light treatments and vision checks. Each adjustment can be evaluated before the next treatment is planned.
Once the desired correction is achieved, two final treatments are performed to permanently lock the lens power. After the required UV-protection period ends, the special glasses are no longer needed.
The ability to make these postoperative adjustments is the main feature that distinguishes the Light Adjustable Lens from a standard fixed-power IOL.
Why Choose The Bochner Eye Institute for the Light Adjustable Lens?
The Bochner Eye Institute combines specialized oculoplastic care with extensive experience in ophthalmology and eye surgery. Its eyelid surgery expertise includes more than 20 years of experience in cosmetic and reconstructive procedures, dedicated oculoplastic fellowship training, former leadership of Oculoplastics at the University of Toronto, and past presidency of the Canadian Oculoplastic Society.
This background is especially relevant when treating the delicate tissues surrounding the eyes, where cosmetic goals must be balanced with eyelid position, eye protection, and tear-film comfort. Surgical planning is tailored to each patient’s anatomy and concerns, with an emphasis on natural-looking results rather than an overly tight or operated appearance. Patients also receive clear guidance about incision placement, recovery, expected results, and potential risks before deciding whether to proceed.
Customize Your Vision in Toronto and Scarborough, ON
The Light Adjustable Lens may offer greater flexibility for patients considering cataract surgery or refractive lens exchange. The ophthalmologists at The Bochner Eye Institute can determine whether the lens is appropriate and explain the adjustment and lock-in process in detail. To explore the Light Adjustable Lens, schedule a consultation with The Bochner Eye Institute by calling (416) 960-2020.