cataracts may remain small and may not be noticeable. they often do not seriously affect vision. and many cataracts do not need to be removed. some cataracts grow larger or denser over time causing severe vision changes. severe cataracts can cause loss of independence for older adults as decreased vision may affect driving working reading or hobbies. while cataracts can cause blindness this is rare. surgery is usually done before a cataract progresses far enough to cause blindness. a rare type of cataract can lead to glaucoma. as a cataract progresses more of the lens becomes cloudy. when the entire lens is white the cataract is called a "ripe" or "mature" cataract and causes severe vision problems. delaying surgery until cataracts are ripe or mature is neither recommended nor necessary. cataracts in children are rare but serious. if a cataract prevents light from entering a child's eye and stimulating the retina the area of the brain used for sight does not develop properly. usually the child won't see well with that eye ( amblyopia ) even if the cataract is later removed. webmd medical reference from healthwise this information is not intended to replace the advice of a doctor. healthwise disclaims any liability for the decisions you make based on this information. © 1995-2011 healthwise incorporated. healthwise healthwise for every health decision and the healthwise logo are trademarks of healthwise incorporated.
what happens to someone when they get cataracts?