Conversation so far:
What is a good age to get LASIK?
Generally, the perfect candidate for LASIK is someone between the ages of 20 and 40.
Give me a short description of the LASIK procedure.
During LASIK eye surgery, an eye surgeon creates a flap in the cornea (A) — the transparent, dome-shaped surface of the eye that accounts for a large part of the eye's bending or refracting power. Then the surgeon uses a laser (B) to reshape the cornea, which corrects the refraction problems in the eye (C).

Question: What are its benefits?
Self-contained rewrite: What are the benefits of LASIK?