Background/methods: We studied a 53-year-old male patient, presenting with a history of reduced vision since childhood in the right eye and since birth in the left eye.
Results: Ocular examination revealed the presence of anterior keratoconus in the right eye and posterior keratoconus in the left eye.
Conclusion: To our knowledge, co-occurrence of both varieties of keratoconus in the same patient has not been previously reported.