Ensuring the best possible clarity in vision
RxSight’s Light Adjustable Lens (LAL) is a customizable lens that uses a special targeted light after cataract surgery to adjust the power of the implanted lens.
This technology accounts for any changes in the eye during the healing process. Changes to the lens can be made in the office setting and visits can be repeated until you are satisfied with your vision, possibly even eliminating the need for glasses.
Enhancing cataract surgery
Until now, surgeons have relied on the accuracy of pre-surgery measurements to determine a patient’s post-operative needs. But with RxSight’s Light Adjustable Lens®, surgeons simply implant the lens and then after surgery they can adjust it using a targeted ultraviolet light.
How it works
About 50% of Americans will develop cataracts by age 75. Cataract surgery is the most performed procedure in the United States.
Cataracts form when the proteins and fibers in your eye’s natural lens begin to break down, causing hazy or cloudy vision. Once begun, cataracts only worsen until surgery is necessary.
During surgery, a patient’s natural lens is removed and replaced with a clear synthetic one. Typically, cataract patients undergo extensive pre-operative testing to determine the power at which the new implantable lens should be set. But pre-op testing can’t fully anticipate changes that occur during the healing process.
Being able to adjust the lens’ power after healing provides the opportunity for more precise vision.
A few office visits to fine-tune
The Light Adjustable Lens is made of a special photosensitive material that changes the shape and power of the implanted lens in response to ultraviolet (UV) light. The post-surgery light treatments are delivered in-office.
You will receive one to three light treatments, each lasting approximately 90 seconds and separated by at least three days. The total number of light treatments is based on the desired visual outcome that you and your surgical eyecare team selected. Once you have achieved your final optimal vision, the lens power is permanently locked with two final light treatments to prevent any further changes.