Corneal dystrophy is a group of hereditary, binocular diseases that progress slowly or remain stationary. Depending on the level of involvement and the cornea, it is divided into anterior, parenchymal and posterior corneal dystrophy, and its treatment is different: 1, epithelial type repeated epithelial exfoliation, can be treated with artificial tears (5% sodium chloride) drops, and some patients can be treated with excimer laser removal of the eroded corneal epithelium. 2, stromal layer dystrophy in the early and middle stages without treatment, vision loss can be significantly reduced therapeutic laser keratomileusis. 3, and endothelial dystrophy early without special treatment, the appearance of corneal edema, endothelial loss of compensation of those with stubborn symptoms, the greater impact on visual function can be considered corneal transplantation.