Posterior polymorphous dystrophy -
It is a dominantly inherited dystrophy of endothelium and Descemet's membrane. It is characterised by lesions with variable appearance, such as vesicles, curvilinear lines or geographical opacities at the level of Descemet's membrane. The condition is very slowly progressive and thus usually asymptomatic. Corneal oedema sometimes may occur, requiring keratoplasty. Rarely it may be complicated by secondary glaucoma.Reference:Comprehensive ophthalmology,AK Khurana,4th edition,page no.119
Causes corectopia
Is inherited in an autosomal recessive fashion
Causes blindness in over 90% of sufferers
Can be trated with lamellar corneal grafts
Cornea and sclera