INTRA CORNEAL RINGS IMPLANTATION
This is a fairly recent, easily performed technique with good results. It is also a very good alternative to the previous “one-and-only “option of penetrating keratoplasty. The underlying principle is primarily to stabilize the cornea and correct as much as possible the refractive error.
The rings used are of plastic (PMMA) and are inserted and placed deep into the cornea. The procedure is performed under local anaesthesia and is painless; it takes less than half an hour for each eye and the patient can return home the same day.
Post-operatively, drops are to be used 4 times a day. The operation causes few symptoms of glare and tearing. These go away eventually. At times, use of spectacles may be needed for better vision since the primary aim of the operation is to stabilize the cornea.