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Microvascular disease affects the eyes, kidneys, and nerves. [25] Damage to the retina, known as diabetic retinopathy, is the most common cause of blindness in people of working age. [20] The eyes can also be affected in other ways, including development of cataract and glaucoma. [20]
Accommodation is the process by which the vertebrate eye changes optical power to maintain a clear image or focus on an object as its distance varies. In this, distances vary for individuals from the far point —the maximum distance from the eye for which a clear image of an object can be seen, to the near point —the minimum distance for a ...
Limiting magnitude. Visual effect of night sky's brightness. In astronomy, limiting magnitude is the faintest apparent magnitude of a celestial body that is detectable or detected by a given instrument. [ 1] In some cases, limiting magnitude refers to the upper threshold of detection. In more formal uses, limiting magnitude is specified along ...
We've all grown up thinking that sitting too close to the television is damaging to our eyes ... but that might not be the case. Technology spawns lots of confusion ... and a few affectionately ...
Image credits: I_Am_Not_That_Man #7. I'm a middle-aged father that works hard and keeps my family together. We don't miss meals or rent, barely. But, when I leave in the morning and I'm alone on ...
Adaptation (eye) In visual physiology, adaptation is the ability of the retina of the eye to adjust to various levels of light. Natural night vision, or scotopic vision, is the ability to see under low-light conditions. In humans, rod cells are exclusively responsible for night vision as cone cells are only able to function at higher ...
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Optical illusion is also used in film by the technique of forced perspective . Op art is a style of art that uses optical illusions to create an impression of movement, or hidden images and patterns. Trompe-l'œil uses realistic imagery to create the optical illusion that depicted objects exist in three dimensions.