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A cover test or cover-uncover test is an objective determination of the presence and amount of ocular deviation. It is typically performed by orthoptists, ophthalmologists and optometrists during eye examinations . The two primary types of cover tests are: the alternating cover test. the unilateral cover test (or the cover-uncover test).
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]
The Worth Four Light Test, also known as the Worth's four dot test or W4LT, is a clinical test mainly used for assessing a patient's degree of binocular vision and binocular single vision. Binocular vision involves an image being projected by each eye simultaneously into an area in space and being fused into a single image.
Serial transverse enteroplasty (STEP) is a surgical procedure used primarily in the treatment of short bowel syndrome (SBS). In STEP, by making cuts in the intestine and creating a zigzag pattern, surgeons lengthen the amount of bowel available to absorb nutrients. The procedure was first performed in 2003 and more than 100 patients had ...
After a dazzling first season, “Interview with the Vampire” moves in a lower-key mode through its second, a perhaps inevitable byproduct of Lestat’s diminished role. Yet this AMC adaptation ...
Maddox wing. The Maddox Wing is an instrument utilized by ophthalmologists, orthoptists and optometrists in the measurement of strabismus (misalignment of the eyes; commonly referred to as a squint or lazy eye by the lay person). It is a quantitative and subjective method of measuring the size of a strabismic deviation by dissociation of the ...
Things got a bit heated at Oracle Park on Wednesday afternoon. The benches and bullpens completely cleared out in the fourth inning of the Philadelphia Phillies’ 6-1 win over the San Francisco ...
A Rubik's Snake (also Rubik's Twist, Rubik's Transformable Snake, Rubik’s Snake Puzzle) is a toy with 24 wedges [1] that are right isosceles triangular prisms. The wedges are connected by spring bolts, [1] so that they can be twisted, but not separated. By being twisted, the Rubik's Snake can be made to resemble a wide variety of objects ...
Kate Middleton Yui Mok - WPA Pool/Getty Images. Royal expert Richard Eden told the Daily Mail on May 24 that Kate’s friends have projected that she will return to public duties in the fall but ...