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Anesthetic eye drops are given to numb the eye and the surgeon marks the cornea with water-soluble ink to guide replacement of the corneal flap.
Review Date 8/5/2024
Updated by: Franklin W. Lusby, MD, Ophthalmologist, Lusby Vision Institute, La Jolla, CA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.