Keratoconus is a disease of the eye that causes structural damage to the cornea and varying degrees of visual impairment.

Abnormal Corneal Signs

• Steepening of the corneal shape
• Thinning of the corneal apex
• Irregular astigmatism
• Breaks in the posterior cornea

Abnormal Vision Symptoms

• Decreased vision
• Distorted vision
• Glare
• Halos around lights
• Monocular diplopia
• Ghost images
• Multiple attempts in obtaining good visual acuity with eyeglasses
• Vision not correctable with eyeglasses