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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]
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.
Some cases of convergence insufficiency are successfully managed by prescription of eyeglasses, sometimes with therapeutic prisms. Pencil push-ups therapy is performed at home. The patient brings a pencil slowly to within 2–3 cm (0.79–1.18 in) of the eye just above the nose about fifteen minutes per day five times per week.
Peli Lens. The Peli Lens is a mobility aid for people with homonymous hemianopia. It is also known as “EP” or Expansion Prism concept and was developed by Dr. Eli Peli of Schepens Eye Research Institute in 1999. It expands the visual field by 20 degrees. He tested this concept on several patients in his private practice with great success ...
Operation Eyesight Universal. Operation Eyesight Universal is a Canada -based international development organization working to prevent blindness and restore sight. Founded in 1963 in Calgary, Canada, Operation Eyesight been recognized as a key player working towards the elimination of avoidable blindness. With support from donors, Operation ...
The Donald K. Johnson Eye Centre Research Institute is a joint venture between Toronto Western Hospital and the University of Toronto. Research areas include: Molecular genetics of blinding eye diseases and brain disorders; Treatment, biophysics and psychophysics of glaucoma; Eye movement and control mechanisms; Neuronal damage; Retinal ...
Eye examination. Functional visual loss (FVL) also known as Functional vision loss or Nonorganic visual loss (NOVL) is a reduction in visual acuity or loss of visual field that has no physiological or organic basis. This disease can come under the spectrum of functional neurological disorder or somatic symptom disorder .
The CNIB Chanchlani Global Vision Research Award is an annual global research award that promotes research to explore the causes of blindness and vision loss, as well as potential cures, treatments and preventions. The award of $25,000 is given to vision scientists around the world who have made a major, original contribution for advancement in ...
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100 City Centre Dr, Mississauga, ON · Directions · (905) 275-4419