Keratoconus

Normal cornea or keratoconus: the difference in shape

The cornea is the transparent window at the front of the eye. In keratoconus, it thins and gradually distorts into a cone, towards the bottom. Compare the two states:

Vertical cross-section of the front of the eye Comparison between a normal cornea forming a regular dome and a cornea affected by keratoconus, distorted into a cone towards the bottom with thinning at its apex. Cornea Iris Crystalline lens the internal lens Sclera the white of the eye Anterior chamber (aqueous humour)

Educational diagram — Dr Moïse Tourabaly, ophthalmologist. For information only, does not replace an examination.