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Director Elvis Mitchell weaves the historical with the personal in his ambitious study of Black screen images. Review: Elvis Mitchell's 'Is That Black Enough for You?!?' is a detailed look at ...
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 ...
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.
Indian-head test pattern. The Indian-head test pattern is a test card that gained widespread adoption during the black-and-white television broadcasting era as an aid in the calibration of television equipment. It features a drawing of a Native American wearing a headdress surrounded by numerous graphic elements designed to test different ...
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 ...
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 ...
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.
Itchy or sore patches of skin. Joint pain and inflammation. Thick, red, scaly patches on the skin. But psoriasis can affect your eyes, too. It can cause a condition called uveitis, when ...