Despite numerous advances in modern cataract technologies, some patients do not achieve their targeted vision. That is why RxSight developed the first IOL that allows your eye doctor to optimize your vision after cataract surgery, rather than trying to predict how your eye will heal and how the IOL will perform.
With the Light Adjustable Lens, you will have the unique ability to adjust and preview your vision until it meets your personal desires and lifestyle requirements. This optimization is done by your eye doctor after lens implantation and healing through a series of light treatment procedures that take only a few minutes each.
During your cataract surgery, the Light Adjustable Lens is implanted. The Light Adjustable Lens (LAL) is made of a special photosensitive material that changes the shape and power of your implanted lens in response to ultraviolet (UV) light. The lenses are customized to each eye, as most patients do not have the exact same prescription for both eyes.
Exposure to indoor and outdoor sources of UV light can cause uncontrolled changes to the Light Adjustable Lens. In order to prevent this, special UV-protective glasses must be worn immediately following surgery during all waking hours (from the time of lens implantation until after the last light treatment is completed).
Your protective glasses may be removed when sleeping and may be temporarily removed when showering, washing your face, or applying eye drops as long as you are not exposed to direct sunlight.
Light treatments are delivered in your doctor’s office with the Light Delivery Device (LDD). Each treatment lasts approximately 90 seconds. The initial light treatment is completed 2 to 3 weeks after cataract surgery. Between 3 and 5 total light treatments are required following cataract surgery and each is separated by approximately 3 days. The total number of light treatments is based on achievement of the desired vision outcome that you and your doctor selected.
The LDD non-invasively delivers the UV light to your Light Adjustable Lens to adjust your vision to the desired target. The system gives your doctor the flexibility to make adjustments and refinements to meet your specific criteria. When you experience the results of your adjustments, you will better understand the value of adjusting and customizing your vision after your surgery.
Once you have achieved your optimal vision, the lens power is permanently locked in with a final light treatment to prevent any further changes. Twenty-four hours after your final light treatment, you can remove the UV protective glasses and enjoy your custom vision!
Generally, the Light Adjustable Lens and Light Delivery Device system is approved for patients who have a cataract and need surgery for it, and who do not have preexisting macular or other eye disease. Other commercially available IOLs may be available for the treatment of your cataracts and your eye doctor will help you determine which lens is right for you.