Dark spots on the corneal endothelium that disappear when the cornea is warmed to room temperature are known as what?

• A. Pseudoguttae
• B. Pterygium
• C. Puncta
• D. Pupil

Answer: (A)

Dark spots on the corneal endothelium that disappear when the cornea is warmed are pseudoguttae. They’re temporary imaging artifacts rather than real endothelial changes, so warming causes them to vanish. In contrast, true guttatae are actual deposits on Descemet’s membrane that persist, seen in conditions like Fuchs' endothelial dystrophy. The other terms don’t describe endothelium findings: pterygium is conjunctival overgrowth onto the cornea, puncta are tear-duct openings, and the pupil is the iris opening.