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Esotropia is a form of strabismus in which one or both eyes turn inward. The condition can be constantly present, or occur intermittently, and can give the affected individual a "cross-eyed" appearance. [1] It is the opposite of exotropia and usually involves more severe axis deviation than esophoria. Esotropia is sometimes erroneously called ...
Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]
A laser pointer or laser pen is a (typically battery-powered) handheld device that uses a laser diode to emit a narrow low-power visible laser beam (i.e. coherent light) to highlight something of interest with a small bright colored spot. The small width of the beam and the low power of typical laser pointers make the beam itself invisible in a ...
By accusing the heads of Israel and Hamas of war crimes, the International Criminal Court’s top prosecutor placed them among world leaders infamous for heinous acts against humanity. The chief ...
TL;DR: As of Dec. 20, you can pick up the NEWYES Scan Reader Pen for only $124.99 instead of $199 — that's 37% in savings.Sometimes, genius innovators knock new technology out of the park and ...
San Diego Padres second baseman Xander Bogaerts left Monday's game against the Atlanta Braves after injuring his shoulder while diving for a ground ball. Initial tests showed no serious damage.
Chirped pulse amplification ( CPA) is a technique for amplifying an ultrashort laser pulse up to the petawatt level, with the laser pulse being stretched out temporally and spectrally, then amplified, and then compressed again. [1] The stretching and compression uses devices that ensure that the different color components of the pulse travel ...
Raising a dog in an apartment is such a specific experience. You have less space, so they have less space. You take the elevator to go outside, so they use the elevator to go outside.
Incomitant strabismus cannot be fully corrected by prism glasses, because the eyes would require different degrees of prismatic correction dependent on the direction of the gaze. Incomitant strabismus of the eso- or exo-type are classified as "alphabet patterns": they are denoted as A- or V- or more rarely λ -, Y- or X-pattern depending on the ...
Edward L. Scanlon was the ultimate insider. The long-serving NBC executive was a hugely influential player in the life of the network during the decades when it was owned by RCA and later General ...
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