<unk>  (from Greek: kerato- horn, cornea; and Latin: globus round) is a degenerative non-inflammatory disorder of the eye in which structural changes within the cornea cause it to become extremely thin and change to a more globular shape than its normal gradual curve. It causes corneal thinning, primarily at the margins, resulting in a spherical, slightly enlarged eye. It is sometimes equated with "megalocornea".
Keratoglobus
Arbor vitae 
Phadebas
Hemosiderinuria
Pentosuria
Parosmia
Harderoporphyria
Scurvy