Retinopathy is diagnosed by examining the retina. Physicians can use a device called an ophthalmoscope, which allows them to look into the eye and see the retina (Polack 2012). Alternately, retinopathy can be diagnosed by taking photographs of the retina, which can then be analyzed for signs of retinal damage. The accuracy of these testing methods depends on the extent of the disease and skill of the practitioner; people concerned about retinopathy should see an ophthalmologist. For diabetics, annual eye examinations by an ophthalmologist are highly desirable (Prasad 1999).