Cagin Eye Hospital in Istanbul is the largest private eye hospital in Turkey, treating 380 international patients annually. It offers a full range of keratoconus treatments, from eye examinations starting at around A$240 to corneal cross-linking at about A$1,030 and corneal transplants that may cost around A$12,700. Packages include transfers, hospital stay, and single-room accommodation. The hospital uses advanced laser techniques like femtosecond laser and offers both non-surgical and surgical options to stop progression or replace damaged cornea.