diagnosis of cataracts is based on a medical history and physical exam. often tests are used to: confirm the presence of a cataract. rule out other conditions that may be causing vision loss. for more information see the topics vision tests ophthalmoscopy and tonometry. in deciding whether to have surgery it can be very helpful to evaluate the effect that vision loss from a cataract has on your life. your doctor may ask you to complete a questionnaire regarding the effect of the cataract on daily activities. if you already have some vision loss that cannot be corrected by cataract surgery your doctor may perform a low-vision evaluation to help find ways for you to make the most of your remaining vision and maintain your quality of life. early detection during routine eye exams your eye doctor will look for early signs of vision problems including cataracts. testing your child for cataracts may be needed if you think your child is having a vision problem. 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 exams and tests help doctors to evaluate or test people for cataracts?