Keratoconus: Symptoms, Causes, and How Scleral Lenses Help You See Again corneal cross-linking · corneal topography · eye rubbing · irregular cornea · keratoconus · scleral lenses · specialty contact lenses · Oct 09, 2026 Keratoconus makes the cornea thin and bulge into a cone, so vision gets blurry and distorted. Here's how to spot it, how we track it, and why scleral lenses work so well for many people who have it.