The outermost layer of the eye. It is a hard, fibrous membrane that provides protection to the eye. It also functions to maintain the shape of the eye. The cornea is the forward most part of the sclera.
The sclera is the opaque (usually white), fibrous, protective layer of the eye containing collagen and elastic fibers.Cassin, B. and Solomon, S. Dictionary of Eye Terminology. Gainsville, Florida: Triad Publishing Company, 1990.