Cataracts occur in humans and animals when the normally clear part of the lens of the eye becomes cloudy, making it difficult to see. They can be caused by genetics, trauma or diabetes. Left untreated, they often become painful or lead to glaucoma, which can cause blindness. Cataracts can be removed, and traditional surgery involves surgically implanting an artificial lens to the cornea.
Shortly after bringing Gremlin home from cataract removal surgery, the Hughes felt she was experiencing more discomfort than was to be expected. They were advised at the local emergency clinic that nothing was wrong but by morning, Gremlin lost vision in her right eye and had nearly no vision in her left one. It was later determined that too much pressure had built up on Gremlin’s optic nerves following surgery.