cataract is clouding of the lens of the eye mostly due to aging. Cataract surgery is recommended when your cataract has progressed to the point that it is interfering with your daily activities and hinders your vision.
Cataract might cause clouded, blurry or dim vision, sensitivity to light and colors to appear faded or yellowed.
Cataracts can be easily treated with a simple surgery normal under local anesthesia where clouded lens will be replaced with new man-made lens.