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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]
Esophoria is an eye condition involving inward deviation of the eye, usually due to extra-ocular muscle imbalance. It is a type of heterophoria. Cause. Causes include: Refractive errors; Divergence insufficiency; Convergence excess; this can be due to nerve, muscle, congenital or mechanical anomalies.
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]
Specialty. Neurology, ophthalmology. Diplopia is the simultaneous perception of two images of a single object that may be displaced horizontally or vertically in relation to each other. [1] Also called double vision, it is a loss of visual focus under regular conditions, and is often voluntary.
For an introductory guide on IPA symbols, see Help:IPA. Urdu ( / ˈʊərduː /; اردو, [ʊɾduː] ⓘ; ALA-LC: Urdū) is an Indo-Aryan language spoken chiefly in South Asia. [10] [11] It is the national language and lingua franca of Pakistan, where it is also an official language alongside English. [12]
Ophthalmology. In ophthalmology, horror fusionis is a condition in which the eyes have an unsteady deviation, with the extraocular muscles performing spasm-like movements that continuously shift the eyes away from the position in which they would be directed to the same point in space, giving rise to diplopia. Even when the double vision images ...
Persian and Urdu are distinct languages. Persian is classified as an Iranian language, whereas Urdu is an Indo-Aryan language. They fall under the larger grouping of the Indo-Iranian languages, and hence share some linguistic features due to common descent . However, the majority of influence from Persian is direct, through a process often ...
^(i) lit. "verge of death" Language has so few speakers, it is unlikely to survive unless immediate action is taken to preserve it ^(ii) Moghol is the only language in its branch ^(iii) Possibly Extinct ^(iv) Language has died or gone extinct in Afghanistan, but survives elsewhere. See also. Afghanistan portal; Afghan Turkmens
Urdu in the United Kingdom ( Urdu: برطانیہ میں اردو) is the fourth most commonly spoken language. It is seen as the lingua franca for around two million British South Asians. [1] According to the 2021 census, 270,000 people (0.5% of UK residents) listed Urdu as their main language, an increase of 1,000 from 2011. [2]
This category contains articles with Urdu-language text. The primary purpose of these categories is to facilitate manual or automated checking of text in other languages. This category should only be added with the {{ Lang }} family of templates, never explicitly. For example {{ Lang | ur |text in Urdu language here}}, which wraps the text with ...