Ordinarily, visuals are centered on the retina in the back of the eye. With nearsightedness, farsightedness or astigmatism, pictures are centered both before or behind the retina. This results in blurred vision. Superficial anterior lamellar keratoplasty (SALK) – This procedure replaces the cornea’s outer layers with donor tissue. "Dr. Paysse https://eyeexamnearme56544.blog-eye.com/28176879/what-does-rle-eye-surgery-mean