A male patient, 59 years of age, who had undergone a pterygium operation 45 days ago in another center, applied to our clinics for itching and burning complaints. The patient was examined and thinning of the cornea at the perilimbal region and intense hyperemia, inflammation and scarred tissue in the nasal conjunctiva were observed. Additionally, the patient had chronic dacryocystitis. Firstly, an external dacryocystorhinostomy (DSR) operation was applied. Three days after the operation, corneal perforation and iris prolapse occurred. An autograft, including conjunctiva, limbus and neighbouring corneal tissue with lamellar excision from the superior region of the same eye, was taken. With the help of 10/0 monofilament nylon sutures, the autograft was implanted. In the postoperative period, the patient’s cataract, which was present before the operation, progressed. In the postoperative 6th month, a cataract operation was performed. By the postoperative 7th month, the patient’s visual acuity was 0.00 logMAR and the perforation region had recovered completely.