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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]
New channels. 2003: With the end of its contract with Star, NDTV launched its own news channels in English (NDTV 24x7) and Hindi ( NDTV India ). [3] Star TV was keen to renew NDTV's contract but was no longer willing to give it full editorial control. Star retained the Star News brand, but channel continued only in Hindi.
India is consistently one of the best teams in the world, in all of the sport’s formats – Test, one-day and T20 – but it has experienced a year pockmarked by disappointments, losing to ...
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.
India Today (formerly Headlines Today) is a 24-hour English language television news channel based in Noida, Uttar Pradesh that carries news, current affairs and business programming in India. The channel is owned by TV Today Network Ltd, which is a part of Living Media .
June 12, 2024 at 10:25 AM. By Jody Godoy. (Reuters) - Tech and competition watchdog groups have called on the U.S. Department of Justice to probe YouTube, saying the video-streaming platform could ...
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]