Patients are often reluctant to bring this up because they think it suggests they are “going crazy.” They should be assured that it is not a sign of craziness just the brain getting “bored” when it no longer receives input from that part of the retina. The images can be patterns like wallpaper, and sometimes even animals or people. This represents the brain filling in images when it no longer receives visual input from part of the retina. People who lose some central vision may also have visual hallucinations, called Charles Bonnet syndrome. This can be caused by areas of wet macular degeneration or areas of retinal atrophy, when the vision-sensitive cells (photoreceptors) die in a region of the macula. For example, upon waking up in the morning and looking at the ceiling, some have complained that they see dark areas. Some patients will notice abnormalities in central vision only when looking at a white wall. Dark or Black Spots on White Walls When Waking Up Patients with symptoms of retinal detachment should have an eye exam as soon as possible so that treatment can be given promptly. It is important to differentiate this from flashing lights in the side vision, which, when associated with new floaters or a “curtain” blocking the side vision, can be a sign of a different disease: retinal detachment. ![]() It can occur when new blood vessels or scar tissue is tugging on the retina. Patients have also complained of flashing lights in their central vision. The low-light vision may then return very slowly over about 30 minutes. For example, it would be more difficult to see the seats in a dark movie theatre immediately after coming in from the bright sunlight. ![]() One common symptom that’s harder to notice is that it takes longer to see in the dark, which is called delayed dark adaptation. This happens when the retina takes longer than usual to adapt when switching from a bright to a dark environment. ![]() However, there are other symptoms of AMD that are less noticeable or occur less often, but that you should still know about. Or, if someone has advanced AMD, they may notice a dark area or distortion in their central vision. Learn about symptoms of macular degeneration that are often not as noticeable or occur less frequently.Īge-related macular degeneration is usually diagnosed during a routine eye exam when the eye doctor sees small white spots in the retina called drusen.
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