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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]
Contact lenses. to correct refractive errors of the eye; a little invasive. Phoropter. used in refraction testing. Tonometers. used to determine the intraoccular pressure (IOP) - useful in glaucoma; video link for various types of tonometers. Speculum: to keep the eyes open during any operation. Universal eye speculum.
Discovery Communications / Sony / IMAX. August 12, 2014 [ 3] Launched on February 13, 2011. 3D television channel. Alpha Repertory Television Service. Hearst Corporation / ABC. February 1, 1984. Launched on April 12, 1981. Merged with The Entertainment Channel to form A&E .
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]
CaribVision Inc. Caribbean Media Corporation (CMC) CaribVision is a 24/7 English language Caribbean cable-TV channel based in Barbados, with affiliate studios in the United States. DFH Network. DFH Network Inc. Turkish Pay-TV service based in Santa Ana, California comprising 7 channels.
Corrective lens. A corrective lens is a transmissive optical device that is worn on the eye to improve visual perception. The most common use is to treat refractive errors: myopia, hypermetropia, astigmatism, and presbyopia. Glasses or "spectacles" are worn on the face a short distance in front of the eye.
This is a list of television programs broadcast by Nickelodeon in the United States. The channel was first tested on December 1, 1977, as an experimental local channel in Columbus, Ohio. On April 1, 1979, the channel expanded into a national network named Nickelodeon. The first program broadcast on Nickelodeon was Pinwheel, a preschool series ...
Disney Junior (Latin American TV channel) Disney Junior (Polish TV channel) Disney Junior (Scandinavian TV channel) Disney XD (Dutch TV channel) Disney XD (Latin American TV channel) Disney XD (Scandinavian TV channel) DKids. DR Ramasjang. DreamWorks Channel.