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Computer vision syndrome ( CVS) is a condition resulting from focusing the eyes on a computer or other display device for protracted, uninterrupted periods of time and the eye's muscles being unable to recover from the constant tension required to maintain focus on a close object.
Electromagnetic hypersensitivity ( EHS) is a claimed sensitivity to electromagnetic fields, to which adverse symptoms are attributed. EHS has no scientific basis and is not a recognized medical diagnosis, although it is generally accepted that the experience of EHS symptoms is of psychosomatic origin. Claims are characterized by a "variety of ...
What is the best way to clean a flat screen TV? According to Paulo Filho, owner of the San Francisco, California-based Celestial Cleaning Service, by "following the proper cleaning techniques and ...
Screen burn-in, image burn-in, ghost image, or shadow image, is a permanent discoloration of areas on an electronic visual display such as a cathode-ray tube (CRT) in an older 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 ...
4. Wipe in overlapping strokes. To avoid streaks, Ek recommends cleaning in even, slightly overlapping strokes—either horizontally or vertically. Then go over the screen one final time with a ...
The flicker of a CRT monitor can cause various symptoms in those sensitive to it such as eye strain, headaches in migraine sufferers, and seizures in epileptics.. As the flicker is most clearly seen at the edge of our vision there is no obvious risk in using a CRT, but prolonged use can cause a sort of retinal shock where the flickering is seen even when looking away from the monitor.
By now, you may have purchased one of those sharp new flat-panel TV sets. After all, we all like new, shiny and skinny consumer electronics, don't we? What isn't told to you by that electronics ...
A plasma display panel (PDP) is a type of flat-panel display that uses small cells containing plasma: ionized gas that responds to electric fields. Plasma televisions were the first large (over 32 inches diagonal) flat-panel displays to be released to the public. Panasonic plasma TV of the last generation. 55 inch. Middle class ST60 series (2013).