The following causes of vision loss are defined in general terms. The characteristics described below will vary based on the individual. Albinism Lack of pigment either in just the eyes or in the eyes, skin, and hair. Patients often hold reading material close to their eyes. Cataracts Opacification of the intraocular lens.
Patients have problems with glare, blurred vision, poor contrast, and color perception.
Cataracts can often be removed, and an implant put in place to help improve or restore vision. If a cataract is removed with no implant, the patient is aphakic and will generally require strong glasses or contact lenses in order to see, and will need UV absorbing tints. Results in variable vision, contrast perception, and glare sensitivity. Diabetes affects the small blood vessels of the body, of which there are many in the eye and makes these vessels leaky. Leaky vessels result in not enough blood and nutrients passing to the end of the vessel course.