Cornea is the clear and transparent membrane covering on eyeballs. It can protect eyeball from irritation. It is called as window of eyes, because light needs to travel through and then get focus on the retina. Corneal scarring is the injury of cornea, which makes cornea opaque. Because the cornea is covering on eyeball, when it is transparent, we can't see it. However, if it is opaque, it might appear as dots or larger area. If the scar is located in the central part of eyeball, it could be very obvious cloudy spots and impact the vision. At the very early stage, medication could be adopted to treat corneal scarring. Once the scar is formed and impair most of the vision, then surgery is required for vision restore purpose.
