Which of the following stains is used in Granular dystrophy of cornea
Congo-red
Masson's trichrome
Colloidal iron
PAS
In granular corneal dystrophy the heredity is autosomal dominant, the opacities formed due to the abnormal accumulation of hyaline protein assume a discrete granular form and subsequently coalecse into various irregular shapes. The intervening cornea between the opacities and peripheral cornea remain clear. Ref:- Parsons diseases of eye; pg num:- 213
Cornea and sclera