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That’s because you can get a corneal ulcer, which is an infection on part of the eye that a contact covers. “It’s not going to happen every time, but when it happens, it’s terrible ...
Pupillary light reflex. Variation in the size of the pupil in bright (left) and dim (right) environments. In this case the pupil is 3 mm in diameter on the left, and 9 mm on the right. The pupillary light reflex ( PLR) or photopupillary reflex is a reflex that controls the diameter of the pupil, in response to the intensity ( luminance) of ...
Music video. "1, 2 Step" on YouTube. " 1, 2 Step " is a song by American singer Ciara featuring American rapper Missy Elliott. Written alongside producer Jazze Pha, it was released on November 1, 2004, as the second single of the former's debut studio album, Goodies. It peaked within the top 10 of the charts in several countries worldwide ...
Retinal scan. A retinal scan is a biometric technique that uses unique patterns on a person's retina blood vessels. It is not to be confused with other ocular-based technologies: iris recognition, commonly called an "iris scan", and eye vein verification that uses scleral veins.
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 ...
A phakic intraocular lens ( PIOL) is an intraocular lens that is implanted surgically into the eye to correct refractive errors without removing the natural lens (also known as "phakos", hence the term). Intraocular lenses that are implanted into eyes after the eye's natural lens has been removed during cataract surgery are known as pseudophakic.
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While the macula is preserved there is some loss of pigmentation around it. Retinitis pigmentosa ( RP) is a genetic disorder of the eyes that causes loss of vision. [ 1] Symptoms include trouble seeing at night and decreasing peripheral vision (side and upper or lower visual field). [ 1] As peripheral vision worsens, people may experience ...