Crystalens is an artificial lens implant that, unlike a standard IOL, can treat both a person’s cataracts and presbyopia—loss of near and intermediate vision. You probably noticed in your forties that you started to lose some of your up-close vision and had to start wearing reading glasses. Crystalens not only treats your cataracts (a clouding or hardening of your lens); many patients hardly if ever wear glasses after surgery. It does so by recreating accommodation similar to your eye’s natural lens. The unique Crystalens is designed to allow you to enjoy a fuller, more natural range of vision for most activities, including: reading a book, working on the computer, and driving a car.
Crystalens was modeled after the human eye. Like the natural lens, it is a lens implant that uses the eye muscle to flex and accommodate in order to focus on objects in the environment at all distances. Crystalens dynamically adjusts to your visual needs.
Crystalens is designed to allow the optic, or the central circular part of the lens that you see through, to move back and forth as you constantly change focus on images around you. Crystalens, like your natural
Is Crystalens right for you?
During cataract surgery, your physician will replace your natural lens with an IOL. Today there are multiple types of IOLs, each delivering a different performance profile based on how the lens is designed. Here are the basics about the three main types of IOLs:
- Standard Monofocal IOLs
A standard monofocal IOL is a fixed lens (it doesn’t move) that is designed to deliver improved vision at just one distance (usually far). The potential drawback is that after surgery, you will probably need to wear glasses for near and intermediate vision, even if you didn’t wear glasses before surgery.
- Multifocal IOLs
A multifocal lens uses multiple visual zones that are built into the lens itself to provide vision at various distances. It’s almost like the rings of a target, with some rings being dedicated to distance vision, while others are used for near vision, similar to having a bifocal or trifocal lens inside the eye. A multifocal IOL projects multiple images, requiring your brain to adjust to the differences. Some patients have difficulty adjusting to seeing this way. Additionally, intermediate vision (at arms length) can be compromised because the technology is designed mainly for near and distance vision, at the exclusion of intermediate vision. With multifocal IOLs, patients can have potential issues of glare and halos especially when driving at night.
- Accommodating IOLs
As the name implies, an accommodating lens “flexes” or “accommodates” using the eyes natural muscles to focus on subjects at various distances, delivering a fuller, more natural range of vision. Crystalens is the one and only FDA-approved accommodating lens available in the United States. Many patients hardly if ever wear glasses after surgery. More than twice the number of patients implanted with Crystalens could see at all distances compared to a standard IOL.