“Diplopia” simply means double vision—seeing two separate copies of one real object. Most people automatically think about eye‑muscle problems when they hear ...

Cerebral polyopia—sometimes called cerebral diplopia—is a rare neurological vision disorder in which the brain, not the eyes, creates two or many “ghost” ...

Central Toxic Keratopathy (CTK) is a rare, self‑limiting condition in which the very center of the cornea turns cloudy, thins, and flattens after refractive or ...