Refractive Surgical Procedures

**Definition:** Surgical procedures employed to correct REFRACTIVE ERRORS such as MYOPIA; HYPEROPIA; or ASTIGMATISM. These may involve altering the curvature of the CORNEA; removal or replacement of the CRYSTALLINE LENS; or modification of the SCLERA to change the axial length of the eye.

**Tree numbers:** - E04.540.825

**Synonyms:** - Refractive Surgery