In some situations, your cornea may swell quickly and cause sudden reduced vision and scarring of the cornea.

In advanced keratoconus, your cornea may become scarred, particularly where the cone forms. A scarred cornea causes worsening vision problems and may require corneal transplant surgery.

The effect of ongoing vision problems on your daily life also can lead to anxiety. However, finding ways to adapt to your condition can lessen anxiety.

Feb. 20, 2013