Sevinc Koray Ophthalmologist Nisantasi Hospital Eye Center Eye surgeons of our hospital are in the practice of eye diseases and defects. Dr. M.Koray Sevinç has performed general ophthalmology operations, laser eye surgery, cataract surgery, and ruptured anterior segments in his career as a doctor. treatments arrow_drop_down LASIK PresbyLasik LaserTechnology Developer ReLEx SMILE