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The prism cover test ( PCT) is an objective measurement and the gold standard in measuring strabismus, i.e. ocular misalignment, or a deviation of the eye. [1] It is used by ophthalmologists and orthoptists in order to measure the vertical and horizontal deviation and includes both manifest and latent components. [1]
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]
Canyon City, Oregon. / 44.39306°N 118.94944°W / 44.39306; -118.94944. Canyon City is a city in Grant County, Oregon, United States. It is the county seat of Grant County, and is about 2 miles (3 km) south of John Day on U.S. Highway 395. As of the 2010 census, the city had a total population of 703.
Get the Oregon City, OR local weather forecast by the hour and the next 10 days. ... forecasters were also keeping an eye on another developing tropical system. ... Associated Press 1 day ago ...
Get the Oregon City, OR local weather forecast by the hour and the next 10 ... Associated Press 1 day ago Firefighters helped by cooler weather battle blaze that has scorched area larger than Los ...
What each Oregon wildfire evacuation level means. Oregon follows a three-level evacuation notification system —Level 1 "Be Ready," level 2 "Be Set" and Level 3 "Go Now." For a Level 1 evacuation ...
Corrective lens. A corrective lens is a transmissive optical device that is worn on the eye to improve visual perception. The most common use is to treat refractive errors: myopia, hypermetropia, astigmatism, and presbyopia. Glasses or "spectacles" are worn on the face a short distance in front of the eye.
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