Keratoconus and keratoglobus

From Cat
An 11-month-old DSH with keratoglobus associated with endothelial corneal dystrophy. In this case, the peripheral cornea is still clear, whereas the central cornea is oedematous.

Keratoconus and keratoglobus are rare corneal diseases of cats.

Keratoconus, a consequence of bilateral central thinning of the cornea, has been reported sporadically as a possible primary corneal dystrophy, or in association with other ocular defects such as lenticonus.

Keratoglobus is usually a consequence of limbal to limbal corneal thinning such that the cornea protrudes. Both keratoconus and keratoglobus may develop in cases of endothelial corneal dystrophy[1].

References

  1. Barnett, KC & Crispin, SM (2002) Feline ophthalmology:An atlas and text. Saunders, USA