Search results
Results from the WOW.Com Content Network
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]
Incomitant strabismus cannot be fully corrected by prism glasses, because the eyes would require different degrees of prismatic correction dependent on the direction of the gaze. Incomitant strabismus of the eso- or exo-type are classified as "alphabet patterns": they are denoted as A- or V- or more rarely λ -, Y- or X-pattern depending on the ...
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.
Prism (optics) An optical prism is a transparent optical element with flat, polished surfaces that are designed to refract light. At least one surface must be angled — elements with two parallel surfaces are not prisms. The most familiar type of optical prism is the triangular prism, which has a triangular base and rectangular sides.
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 ...
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]
The Urdu Wikipedia (Urdu: اردو ویکیپیڈیا), started in January 2004, is the Standard Urdu-language edition of Wikipedia, a free, open-content encyclopedia. As of 30 May 2024, it has 206,488 articles, 180,072 registered users and 14,384 files, and it is the 54th largest edition of Wikipedia by article count, and ranks 20th in terms of depth among Wikipedias with over 150,000 articles.
Urdu is the national language and the lingua franca of Pakistan, and while sharing official status with English, it is the preferred and dominant language used for inter-communication between different ethnic groups. [3] [4] Numerous regional languages are spoken as first languages by Pakistan's various ethnolinguistic groups.
The National Language Promotion Department (Urdu: اِدارۀ فروغِ قومی زُبان Idāra-ē Farōġ-ē Qaumī Zabān [ɪ.ˈd̪aː.rə.eː fə.ˈroːɣ.eː ˈqɔː.mi zə.ˈbaːn]), formerly known as the National Language Authority (or Urdu Language Authority), is an autonomous regulatory institution established in 1979 to support the advancement and promotion of Urdu, which is the ...