The way someone with glaucoma sees. – Wikimedia Commons
“If you’re one of the millions … who regularly see an optometrist, you’re probably familiar with having your eye pressure checked as part of a comprehensive eye examination. This is a basic screening test for glaucoma, an eye disease that is the second leading cause of blindness worldwide (after cataracts).
“It affected more than 57.5 million people in 2015 and this figure is projected to rise to 65.5 million people in 2020. Worryingly, 50% of cases remain undiagnosed and untreated and a significant number of people don’t even know what glaucoma is.
“So what exactly is glaucoma
“Glaucoma encompasses a group of eye diseases that involves progressive damage to the optic nerve, which transmits electrical signals from the eye to the brain. If left untreated, irreversible, progressive vision loss occurs and may result in blindness. There is no cure for glaucoma and treatment aims to limit progression of the disease.”
NOTE: This article appears at the Australian edition of The Conversation and references statistics about Australia, though the eye disease is comparable in the US.