According to recent research, not a single theory is able to explain the cause fully. However current plausible theories include infection with Toxoplasma gondii, Herpes simplex virus, Rubella, neurogenic causes, and autoimmune pathology.
Fuchs heterochromic iridocyclitis
Neurotrophic keratitis
Nummular keratitis
Meesmann corneal dystrophy
Ghost cell glaucoma
Schnyder crystalline corneal dystrophy
Lattice corneal dystrophy
Iridocorneal endothelial syndrome