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Computer vision syndrome. 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.
Photophobia is a medical symptom of abnormal intolerance to visual perception of light. [1] As a medical symptom, photophobia is not a morbid fear or phobia, but an experience of discomfort or pain to the eyes due to light exposure or by presence of actual physical sensitivity of the eyes, [2] though the term is sometimes additionally applied to abnormal or irrational fear of light, such as ...
Photokeratitis or ultraviolet keratitis is a painful eye condition caused by exposure of insufficiently protected eyes to the ultraviolet (UV) rays from either natural (e.g. intense direct or reflected sunlight) or artificial (e.g. the electric arc during welding) sources. Photokeratitis is akin to a sunburn of the cornea and conjunctiva.
Searches for 'eyes hurting' are spiking after Monday's solar eclipse, but experts say the pain will subside in most cases. ... Screen out 75 to 90% of visible light.
From television to BB guns to pointed sticks, it sometimes seems like everything that's fun is also a potential threat to your eyesight. With this in mind, it's hardly surprising that 3-D movies ...
Since the first notion of screen reading, many studies have been performed to discern any differences between reading off of an electronic device and reading off of a paper. In a 2013 study, a group of 72 high school students in Norway were randomly assigned into one of two groups: one that read using PDF files on a computer and one that used ...
Flash blindness is an either temporary or permanent visual impairment during and following exposure of a varying length of time to a light flash of extremely high intensity, such as a nuclear explosion, flash photograph, lightning strike, or extremely bright light, i.e. a searchlight, laser pointer, landing lights or ultraviolet light. [1]
When eyes are untaped during general anaesthesia, the incidence of ocular injury has been reported to be as high as 44%. [1][2] If tape is used to hold the eyes closed, ocular injury occurs during 0.1-0.5% of general anaesthetics, and is usually corneal in nature. [3][4] Intraoperative eye injuries account for 2% of medico-legal claims against ...
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