Corneal Ring Implants for Nearsightedness Surgery Overview Corneal ring implants are clear pieces of plastic that can be surgically implanted into the clear, dome-shaped bulge at the front of the eye called the cornea nearsightedness local anesthesia
Corneal implants are intended to be permanent. But they can be surgically removed if you are not happy with the results.
What To Expect
Surgical insertion of corneal ring implants is done on an outpatient basis. This means that you do not have to stay overnight in the hospital. The visual effects of the implants are immediate.
After surgery, you may wear a patch or contact lens on the eye. You will also get instructions on how to manage your pain. Someone must drive you home and then back to the surgeon's office the next day. During this second visit, the surgeon will examine your eye and prescribe eyedrops to prevent infection and reduce inflammation. More follow-up visits are required, usually the next week and then throughout the first year after surgery.
Why It Is Done
Corneal ring implants are used to correct vision in adults with mild nearsightedness (1 to 3 dioptres astigmatism cornea
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How Well It Works
Corneal ring implants appear to be very effective for correcting mild nearsightedness. A year after having corneal ring implants inserted, 88 out of 100 people had uncorrected vision (without glasses or contact lenses) of 20/40 or better.footnote 1
They have not been studied or approved for use in treating moderate or severe nearsightedness. There is no information about the long-term results of corneal ring implants.
Risks
Complications of corneal ring implants may include:
Infection. Glare or halos. Night vision problems. Overcorrection or undercorrection. Experts do not yet know if there are long-term risks from corneal ring implants.
References
Citations Ophthalmology , 3rd ed., pp. 181–185. Edinburgh: Mosby Elsevier.Credits
Current as of: July 31, 2024
Current as of: July 31, 2024
Kojima T, et al. (2009). Intrastromal corneal ring segments for low and high myopia. In M Yanoff, JS Duker, eds., Ophthalmology , 3rd ed., pp. 181–185. Edinburgh: Mosby Elsevier.
