How is a cataract diagnosed?

How is a cataract diagnosed?

If you have cataract symptoms, see an eye doctor (ophthalmologist) for a complete exam. The doctor will need to dilate your pupil to see inside your eye. During this test, special eye drops widen your pupil (the black part of the eye). When the pupil is wide open, your doctor checks the health of your eye. Your doctor can see if you have cataracts or other problems and find out how much of your vision is blocked.