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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]
Hirschberg corneal reflex test. Purpose. whether a person has strabismus. In the fields of optometry and ophthalmology, the Hirschberg test, also Hirschberg corneal reflex test, is a screening test that can be used to assess whether a person has strabismus (ocular misalignment).
Cataract in human eye: magnified view seen on examination with the slit lamp. In ophthalmology and optometry, a slit lamp is an instrument consisting of a high-intensity light source that can be focused to shine a thin sheet of light into the eye. It is used in conjunction with a biomicroscope.
Convergence disorder. Specialty. Ophthalmology, optometry. Convergence insufficiency is a sensory and neuromuscular anomaly of the binocular vision system, characterized by a reduced ability of the eyes to turn towards each other, or sustain convergence .
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]
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.
Canadian law. This is a list of prisons and other secure correctional facilities in Canada, not including local jails. In Canada, all offenders who receive a sentence of 24 months or greater must serve their sentence in a federal correctional facility administered by the Correctional Service of Canada (CSC). Any offender who receives a sentence ...
Headquarters. Sydney, Australia. CEO. Yvette Waddell. Website. www .bhvi .org. Formerly called. Institute for Eye Research [1] The Brien Holden Vision Institute (BHVI) is an Australian nonprofit non-governmental organization with an international focus on eye care research and vision care delivery. [2]
Pages in category "Prisms (optics)" The following 41 pages are in this category, out of 41 total. This list may not reflect recent changes. ...
The Smith-Kettlewell Eye Research Institute is a nonprofit research institute in San Francisco, California, with a focus on vision science and rehabilitation engineering. It was founded in 1959 by Arthur Jampolsky and Alan B. Scott , when some members of Stanford University 's Ophthalmology Department elected to stay in San Francisco rather ...