What is unique about the cornea?

The cornea is unique due to its transparent, avascular structure, which allows light to enter the eye without obstruction. It has a distinct curvature that contributes significantly to the eye's overall focusing power. Additionally, the cornea has a high density of nerve endings, making it one of the most sensitive tissues in the body, which plays a critical role in protecting the eye from injury and detecting environmental changes. Its ability to regenerate quickly after injury also sets it apart from many other tissues.