Cataracts: symptoms, detection and diagnosis
Cataracts affect millions of people worldwide and are the leading cause of vision impairment, especially among older adults.
Understanding what cataracts are and how they may affect the eyes can help people make the right decision for their eyes.
What are cataracts?
A cataract is the clouding of the eye’s natural lens, which lies behind the iris and the pupil. The lens works just like






