Presbyopia is a condition of middle-age in which near vision becomes poor. It is usually corrected with glasses. The newer treatments are aimed at getting rid of glasses. Corneal inlays are tiny implants which are inserted into the cornea changing its shape and refractive power. Raindrop inlay is one such example.
A gel-like device that looks like a miniature contact lens, the Raindrop inlay is smaller than the eye of a needle, and is placed in only one eye. It is the first implant to treat presbyopia by changing the cornea’s shape, making it steeper, to alter how light passes through it.
The device maker, ReVision Optics Inc., a company based in Singapore, is gradually training eye surgeons to use the inlay properly. The Food and Drug Administration approved it last summer based on a study of 373 people whose only vision problem was moderate presbyopia. Two years later, 92 percent had good near vision — 20/40 or better without glasses — in the implanted eye.
The results are usually good but since this is a surgical procedure, there is a possibility of infection, dry eye and glare.