Sclerocorneal

opacity peripheral, corneal size ?, cornea plana present

 

Trauma/tears

opacity diffuse, corneal size large, check IOP and axial length

 

Ulcers

opacity anywhere, size nl, culture

 

Metabolic

opacity diffuse, size nl, urine test

 

Peter's anomaly

opacity central, size nl, large from glc, or small, test cardiac and renal if bilateral, check chromosomes PAX6, chromosome 11

 

Endothelial dystrophy

diffuse opacity, nl size, check family genetics

 

Dermoid

usually inf. temporal vs. central, size nl, hair in lesion