A 10-year study shows that a third of patients who undergo radial keratotomy, in which the corneas are resculpted for better vision, gradually develop farsightedness and may need .
But the most popular procedure is radial keratotomy, in which a series of fine spokelike incisions are made on the cornea to correct myopia.
In the operation that was inspired by the accident, a procedure called radial keratotomy (a cut or slice into the cornea), the surgeon makes 16 or so incisions into the cornea.