is kept moist by blinking. During sleep, it is protected by the eyelids. Increased exposure of the cornea to air, due to incomplete or inadequate eyelid Exposure keratopathy (also known as exposure keratitis) is medical condition affecting the cornea of eyes. It can lead to corneal ulceration and permanent loss of vision due to corneal opacity. Normally, the corneal surface is kept moist by blinking. During sleep, it is protected by the eyelids. Increased exposure of the cornea to air, due to incomplete or inadequate eyelid closure, causes increas Exposure keratopathy (also known as exposure keratitis) is medical condition affecting the cornea of eyes. It can lead to corneal ulceration and permanent loss of vision due to corneal opacity. Normally, the corneal surface is kept moist by blinking. During sleep, it is protected by the eyelids. Increased exposure of the cornea to air, due to incomplete or inadequate eyelid closure, causes increased tear evaporation from the corneal surface. Increased tear evaporation leads to instability of the tear film and dryness of the corneal surface, resulting in corneal epithelial damage. Both tear film and corneal epithelium play significant role in corneal protection. Dryness and epithelial damage allow microorganisms to penetrate the cornea, leading to keratitis. Lagophthalmos, the inability to close the eyelids completely is the main cause of exposure…