Astigmatism and Keratoconus
What is Astigmatism?
Astigmatism results when the eyeball is not perfectly round. In astigmatism, the eye is shaped more like a football and less like a basketball. Most people have some small degree of astigmatism they are born with and slowly fluctuates or changes throughout life. Astigmatism can also develop following an eye injury or eye surgery.
Astigmatism is Treatable
Most cases of astigmatism are treated with glasses or contact lenses. Astigmatism can also be treated with laser vision correction or sometimes in conjunction with cataract surgery, also known as laser assisted cataract surgery.
What is Keratoconus?
1 in 2,000 people have a progressive form of astigmatism where the cornea progressively thins and forms a cone like projection similar to the end of a football. Symptoms may include blurry vision not improving with the best glasses or soft contact lens prescription. In some cases a treatment called cross-linking is indicated to strengthen the cornea. In addition speciality contact lenses called scleral lenses may improve vision in a way that regular glasses or contact lenses can't. In rare cases, a corneal transplant surgery may be the only option.
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