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Prism spectacles with a single prism perform a relative displacement of the two eyes, thereby correcting eso-, exo, hyper- or hypotropia. In contrast, spectacles with prisms of equal power for both eyes, called yoked prisms (also: conjugate prisms, ambient lenses or performance glasses) shift the visual field of both eyes to the same extent. [5]
Chronic progressive external ophthalmoplegia (CPEO) is a type of eye disorder characterized by slowly progressive inability to move the eyes and eyebrows. [1] It is often the only feature of mitochondrial disease, in which case the term CPEO may be given as the diagnosis.
On 11 November 1983, Aboriginal women led 700 women to the Pine Gap gates where they fell silent for 11 minutes to commemorate Remembrance Day and the Greenham Common protest in Britain. This was the beginning of a two-week, women-only peace camp, organised under the auspices of "Women For Survival". [ 39 ]
Indian Airlines Flight 814, commonly known as IC 814, was an Indian Airlines Airbus A300 that was hijacked on 24 December 1999 by five members of Harkat-ul-Mujahideen.The passenger flight, en route from Kathmandu to Delhi, was taken over shortly after it entered the Indian airspace at about 16:53 IST.
In chemistry, there are three definitions in common use of the word "base": Arrhenius bases, Brønsted bases, and Lewis bases.All definitions agree that bases are substances that react with acids, as originally proposed by G.-F. Rouelle in the mid-18th century.
German tanks of the Neubaufahrzeug type in Oslo in April 1940. Germany invaded both Norway and Denmark on 9 April 1940. [1] Norway was very important to Germany for two reasons: firstly as a base for naval units to harass Allied shipping in the North Atlantic and Arctic Oceans, and secondly to secure shipments of iron ore coming in from Sweden through the port of Narvik. [2]
Donald Trump risks being doomed by what he wrought in North Carolina.. An already fiercely fought presidential contest in the critical swing state was thrown into greater turmoil Thursday by a ...
The Four Prism Dioptre Reflex Test (also known as the 4 PRT, or 4 Prism Dioptre Base-out Test) is an objective, non-dissociative test used to prove the alignment of both eyes (i.e. the presence of binocular single vision) by assessing motor fusion. [1]