glaucoma

/ɡlɔːˈkoʊmə/
noun
  1. A medical condition that damages the optic nerve, often caused by high pressure inside the eye, and can lead to vision loss.
    • My grandmother uses special eye drops to control her glaucoma.
    • If left untreated, glaucoma can cause permanent blindness.
    • Regular eye exams are important because glaucoma often has no early symptoms.