Keratoconus (KC) is an eye disorder that leads to progressive clarification of the cornea. This can lead to blurry vision, double vision, vision, vision, astigmatism and sensitivity to light. Usually both eyes are affected. In the most serious cases, you can see a scar or circle inside the cornea.
In the early stages of keratoconus, glasses or soft contact lenses can be enough to correct soft astigma. As the condition progresses, these will no longer provide the person with a satisfactory degree of visual acuity, and most practitioners will move around to manage the condition with rigid contact lenses known as lenses stiff, gas permeable RGP lenses provide a good level of visual correction, but don’t stop state progress.
The National Eye Institute reports that keratoconus is the most common corneal dystrophy in the United States, affecting about one in 2,000 Americans, but some reports place this number as high as one in 500. inconsistency can be due to variations in diagnostic criteria, with some cases of severe astigma interpreted as keratoconus, and vice versa. A long-term study revealed an average incidence rate of 2.0 new cases per 100,000 inhabitants per year. Some studies have suggested higher prevalence among women, or that people of South Asian ethnicity are 4.4 times more likely to suffer from keratoconus than Caucasians, and that they are also more likely to be affected by the condition earlier.