Performing Testing for Specific Eye Conditions in the iPad App

The Vision Exam screen allows you to record test results for other types of conditions such as glaucoma A disease characterized by elevated intraocular pressure, which causes optic nerve damage and subsequent peripheral vision loss. Most people have no initial symptoms of chronic (open-angle) glaucoma, but you can develop peripheral vision loss, headaches, blurred vision, difficulty adapting to darkness, and halos around lights. Other forms of glaucoma (e.g., closed-angle glaucoma) may have additional symptoms such as eye pain, a pupil that does not respond to light, redness, nausea, and a bulging eye., macular degeneration Disorder characterized by changes in the eye's macula that result in the gradual loss of central vision. The exact cause is unknown, but appears to be related to a genetic predisposition, smoking, and several other risk factors. Central vision may be blurred, distorted (metamorphopsia), or shadowy before vision loss occurs., and color blindness.