Diagram of the Human Eye Cross-section of a normal cornea Complications In advanced stages,<unk>  can threaten eyesight, which is why routine (annual) eye exams are recommended for contact lens patients.
Corneal neovascularization
Macular corneal dystrophy
Granular corneal dystrophy
Corneal hydrops
Macular edema
Macular scarring
Lattice corneal dystrophy
Interstitial keratitis