Dr. Rokhsanda Rehnuma gets ready to performs a surgical technique to remove a cataract at Bangladesh Eye Trust Hospital. A cataract is a clouding of the lens in the eye, causing your vision to be blurry, dim, and unclear. Bangladesh Eye Trust Hospital renowned for cataract surgery for the helpless and poor people in Dhaka. (Photo by Sazzad Hossain / SOPA Images/Sipa USA)