Keratoconus is a progressive eye disease in which the normally round cornea thins and begins to bulge into a cone-like shape. As a result, it alters eyesight in two different ways. First, as the shape of the cornea alters, the surface of the cornea will start to become wavy. The result is an irregular astigmatism. Second, as the cornea expands, vision becomes increasingly nearsighted. Without eyeglasses or contact lenses, focusing becomes impossible.
Keratoconus usually starts in the teenage years. It can however, occur during childhood or in people up to about age 30. Early diagnosis is very important in the management of keratoconus. The most sensitive diagnostic method available for keratoconus detection is corneal topography. More advanced forms of topography evaluate both the front and back surface of the cornea as well as corneal thickness profiles.
Contact lenses, specifically gas permeable contact lenses, provide a great option for clearer vision for those with this condition. The rigidity of a gas permeable lens helps to smooth out the front surface of the eye. Thus, making clear vision possible. In addition to gas permeable contact lenses, your eye care can be tailored using scleral or hybrid contact lenses, custom soft contact lenses, or piggyback-fit contact lenses.