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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]
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 ...
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.
Strabismus. Strabismus is a vision disorder in which the eyes do not properly align with each other when looking at an object. [2] The eye that is pointed at an object can alternate. [3] The condition may be present occasionally or constantly. [3]
Indian foreign minister Subrahmanyam Jaishankar rejected U.S. President Joe Biden's comment that "xenophobia" was hobbling the South Asian nation's economic growth, The Economic Times reported on ...
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.
The start of the 20th century saw some push from scientific associations to calibrate India’s time to GMT. The Royal Society in London proposed two time zones for India, both in full-hour ...
Website. www .amarujala .com. Media of India. List of newspapers. Amar Ujala ( lit. 'The Immortal Brightness') is a Hindi-language daily newspaper published in India which was founded in 1948. It has 22 editions in six states and two union territories covering 180 districts. [2] [3] It has a circulation of around two million copies. [1]
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 ...
By Arpan Chaturvedi. NEW DELHI (Reuters) - An Indian state has accused yoga guru Baba Ramdev of criminal misconduct for promoting his traditional ayurvedic medicine as a cure for COVID-19 because ...