Keratoconus
Keratoconus is a bilateral, assymetric, cone-shaped deformity of the cornea, due to progressive paracentral corneal thinning. Patients usually develop irregular astigmatism.
The disease is usually sporadic but may have a positive family history of 10%.
Symptoms include decreased vision, sudden loss of vision, pain, photophobia, tearing and red-eyes.
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