The Verisyse Phakic IOL is designed to treat patients who are extremely nearsighted, and for whom LASIK may not be a viable option. The Verisyse lens acts like a contact lens that is implanted in front of the iris to improve your vision. And unlike cataract surgery and some other implant procedures, the eye's natural crystalline lens is left in the eye, allowing your focus to easily adjust between objects that are far and near.
In a healthy eye, light is focused onto the retina at the back of the eye by passing through the cornea and the lens. Signals are then sent from the retina to the brain via the optic nerve, where they are translated into the images you see. In nearsighted eyes, the cornea's shape is too steep, causing the light to focus at the wrong point on your retina. The Verisyse lens is designed to correct this problem by refocusing light directly onto the retina, leaving you with clearer vision.
During the procedure, a small incision is made in the cornea to allow the Verisyse lens to be placed between the cornea and the iris. The artificial lens is then attached to your iris and centered in front of the pupil, and the incision is closed with microscopic stitches. The Verisyse lens is meant to be permanent, but the procedure is reversible.
These implants are ideal for patients with high corrections who might not have been candidates for LASIK. Because of the effectiveness of the artificial lens, the cornea is not reshaped, allowing for safe correction and the possibility of a future LASIK procedure should your prescription change.
Dr. Vance Thompson is a pioneer in the field of laser vision correction and a leading researcher of refractive surgery implants. In February of 2004, his expertise on this innovative procedure took him to Washington D.C., where he was one of two surgeons in the country invited to testify about his research and experience.