First, the surgeon uses numbing eye drops. A small incision is made at the top of the eye. Then, a space is made on the left and right of the inner cornea for the placement of the crescent-shaped rings. Because of the cornea's extraordinary natural bonding qualities, this procedure does not require stitches.
Most people say they feel a certain amount of pressure during part of the procedure, but no pain.
For all refractive surgery procedures the eye is anesthetized before surgery using eye drops. However, there may be some pain during the healing process. That discomfort is treated with pain medication when necessary. How the rings correct vision Corneal rings are surgically placed through a tiny incision that is made on the cornea. Once in place, the two arcs flatten the cornea so that light rays can properly focus on the retina.