Before revision: It is performed by applying riboflavin (vitamin B2) eye drops to the cornea and illuminating with UVA light, which cross-links the collagen fibers within the cornea, making it stronger, gently changing the shape and improving your vision.
After revision: It is performed by applying riboflavin (vitamin B2) eye drops to the cornea and illuminating with UVA light, which cross-links the collagen fibers within the cornea, making it stronger, gently changing the shape and improving patient's vision.