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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.
Photic retinopathy. Photic retinopathy is damage to the eye 's retina, particularly the macula, from prolonged exposure to solar radiation or other bright light, e.g., lasers or arc welders. The term includes solar, laser, and welder's retinopathy and is synonymous with retinal phototoxicity. [ 1] It usually occurs due to staring at the Sun ...
Tibullus book 1 is the first of two books of poems by the Roman poet Tibullus (c. 56–c.19 BC). It contains ten poems written in Latin elegiac couplets, and is thought to have been published about 27 or 26 BC.
When they tried to blow it up, only a portion of the explosives detonated. U.S. forces captured the bridge and rapidly expanded their first bridgehead across the Rhine, two weeks before Field Marshal Bernard Montgomery's meticulously planned Operation Plunder. The U.S. Army's actions prevented the Germans from regrouping east of the Rhine and ...
Entoptic phenomena (from Ancient Greek ἐντός (entós) 'within' and ὀπτικός (optikós) 'visual') are visual effects whose source is within the human eye itself. (Occasionally, these are called entopic phenomena, which is probably a typographical mistake.) In Helmholtz 's words: "Under suitable conditions light falling on the eye ...
Cosmic ray visual phenomena, or light flashes ( LF ), also known as Astronaut's Eye, are spontaneous flashes of light visually perceived by some astronauts outside the magnetosphere of the Earth, such as during the Apollo program. While LF may be the result of actual photons of visible light being sensed by the retina, [ 1] the LF discussed ...
Ciclosporin, steroid eye drops [ 2] Frequency. ~20% [ 5] Dry eye syndrome, also known as keratoconjunctivitis sicca, is the condition of having dry eyes. [ 2] Symptoms include dryness in the eye, irritation, redness, discharge, blurred vision, and easily fatigued eyes. Symptoms range from mild and occasional to severe and continuous. [ 3]
Optography is the process of viewing or retrieving an optogram, an image on the retina of the eye. A belief that the eye "recorded" the last image seen before death was widespread in the late 19th and early 20th centuries, and was a frequent plot device in fiction of the time, to the extent that police photographed the victims' eyes in several ...