Refractive surgery

Three ways to reshape the cornea: LASIK, PRK, SMILE

They all correct vision by reshaping the cornea with a laser — but they do not reach it the same way. The cornea is made of layers: see what each technique touches.

Enlarged cross-section of the cornea (side view).

Cross-section of the cornea by technique epithelium stroma endothelium

The procedure

Surface layer

Visual recovery

Educational diagram — Dr Moïse Tourabaly, ophthalmologist. For information purposes, does not replace an examination.