What are Scleral Lenses and How do they work their magic

There are a lot of people suffering from various eye conditions, but many aren t good candidates for using contact lenses or have difficulties wearing contact lenses. The large diameter gas permeable (GP) lenses known as scleral lenses are an effective alternative for such patients as they can provide the same benefits that conventional GP lenses can give.

Vision problems caused by Keratoconus and other cornea irregularities can be corrected by the smooth optical surface of the scleral lens. Scleral lenses are filled with isotonic fluid before fixing, so that the space between the cornea and the back surface of the lenses acts as a tear reservoir. This tear reservoir continually provides moisture and oxygen to prevent eye injuries like corneal abrasions.