Cornea is an essential part of the eye. Externally, it is the first layer that helps in focusing the incoming light. Understandably, the cornea has to be healthy for a healthy eye and vision. Cornea is made of proteins and highly ordered cells with nerve endings. Any change in its transparency and consistency of the structure impacts our vision. Given the importance of the cornea, 3 commonly occurring corneal conditions have been enlisted with its symptoms and treatment.