Metabolism is the process by which your body converts what you eat and drink into energy. During this complex biochemical process, calories in food and beverages are combined with oxygen to release the energy your body needs to function.
Closed-angle glaucoma is more common in women. Glaucoma has been called the silent thief of sight because the loss of vision usually occurs slowly over a long period of time. Worldwide, glaucoma is the second-leading cause of blindness after cataracts.
This is why glaucoma is sometimes called the âsilent thief of sight.â. Vision loss from glaucoma can make things look blurry around the edges. A type of glaucoma called âangle-closureâ or ânarrow-angleâ glaucoma can cause sudden symptoms, including: 1  Severe eye pain. 2  Headache. 3  Nausea and vomiting. 4  Halos around lights. 5  Vision loss, including sudden loss of side (peripheral) vision.