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In Windows 3.x, the black screen of death is the behavior that occurred when a DOS-based application failed to execute properly. It was often known to occur in connection with attempting certain operations while networking drivers were resident in memory.
Hallucinatory palinopsia. According to the AAO, hallucinatory palinopsia is associated with visual memory dysfunction. Seizures or lesions in the brain (posterior cortical) can cause it. Seizures ...
Screen burn-in, image burn-in, ghost image, or shadow image, is a permanent discoloration of areas on an electronic display such as a cathode ray tube (CRT) in an old computer monitor or television set. It is caused by cumulative non-uniform use of the screen. Newer liquid-crystal displays (LCDs) may suffer from a phenomenon called image ...
That can put a real strain on your eyes. Eye problems caused by computer use fall under the heading computer vision syndrome (CVS). It isn’t one specific problem. Instead, it includes a whole ...
Black level. Video black level is defined as the level of brightness at the darkest (black) part of a visual image or the level of brightness at which no light is emitted from a screen, resulting in a pure black screen. Video displays generally need to be calibrated so that the displayed black is true to the black information in the video signal.
Acute glaucoma: A sudden onset of severe throbbing eye pain, headaches, blurred vision, rainbow halos around lights, red eyes, nausea, and vomiting. It’s a medical emergency. Secondary glaucoma ...
Symptoms and traits to look out for include: raised or flat shape, often with irregular shape and borders, sometimes on an existing or new mole. brown, black, tan, red, blue, and even white, often ...
Hyperpigmentation will appear as a mark, spot, or area that’s noticeably darker than your surrounding skin. The exact color of a hyperpigmented spot can depend on what’s causing it to occur ...