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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]
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]
21 December 2007. ( 2007-12-21) –. 31 October 2008. ( 2008-10-31) You Suck At Photoshop is a series of online Photoshop tutorials with adult-themed humor designed by Matt Bledsoe and Troy Hitch of the Big Fat Institute for Advanced Interactive Design; hosted at My Damn Channel. [1] The show started as a one-off parody of instructional videos ...
Fixation disparity. Fixation disparity is a tendency of the eyes to drift in the direction of the heterophoria. While the heterophoria refers to a fusion-free vergence state, the fixation disparity refers to a small misalignment of the visual axes when both eyes are open in an observer with normal fusion and binocular vision. [1]
In an unsettling experiment, he proceeded to Photoshop The Donald's mouth over both of his eyes to see what would happen. And the result is extremely alarming -- because Trump looks EXACTLY the ...
Description ( notes ) AC. Anterior chamber. fluid-filled space between the iris and the endothelium. AC 4/4. Grade 4 anterior chamber angle. open angle between cornea and iris. AC 3/4. Grade 3 anterior chamber angle.
These eye-watering prices haven’t tamed Avery’s enthusiasm. Despite her various debts, she’s planning to attend more concerts later this year. “I'm going to go see 21 pilots and Melanie ...
Adobe Photoshop Lightroom and Photoshop CS5 can correct complex distortion. PTlens is a Photoshop plugin or standalone application which corrects complex distortion. It not only corrects for linear distortion, but also second degree and higher nonlinear components. Lensfun is a free to use database and library for correcting lens distortion.