Retinopathy.

The article offers information on retinopahy, which refers to any damage to the retina that may cause impaired vision. Topics discussed include common forms of retinopahy including retinopathy of prematurity (ROP), diabetic retinopathy (DR), and hypertensive retinopathy; evolutionary history of the human eye according to a 2009 article by Carl Zimmer for the "New York Academy of Sciences"; and people who have a greater risk of developing DR that leads to vision loss.