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Exophoria. Exophoria is a form of heterophoria in which there is a tendency of the eyes to deviate outward. [1] During examination, when the eyes are dissociated, the visual axes will appear to diverge away from one another. [2] The axis deviation in exophoria is usually mild compared with that of exotropia .
Convergence insufficiency. Convergence Insufficiency. Other names. 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 .
Esophoria is an eye condition involving inward deviation of the eye, usually due to extra-ocular muscle imbalance. It is a type of heterophoria. Cause. Causes include: Refractive errors; Divergence insufficiency; Convergence excess; this can be due to nerve, muscle, congenital or mechanical anomalies.
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 International Code of Medical Ethics [1] was adopted by the General Assembly of the World Medical Association at London in 1949, and amended in 1968, 1983, and 2006. It is a code based on the Declaration of Geneva and the main goal is to establish the ethical principles of the physicians worldwide, based on his duties in general, to his ...
The UN Principles of Medical Ethics is a code of medical ethics relating to the "roles of health personnel in the protection of persons against torture and other cruel, inhuman or degrading treatment or punishment.", adopted by the United Nations on 18 December 1982 at the 111th plenary meeting of the United Nations General Assembly. [1]
assess degree of binocular vision. The Worth Four Light Test, also known as the Worth's four dot test or W4LT, is a clinical test mainly used for assessing a patient's degree of binocular vision and binocular single vision. Binocular vision involves an image being projected by each eye simultaneously into an area in space and being fused into a ...
Thomas Percival FRS FRSE FSA (29 September 1740 – 30 August 1804) was an English physician, health reformer, ethicist and author who wrote an early code of medical ethics. He drew up a pamphlet with the code in 1794 and wrote an expanded version in 1803, Medical Ethics; or, a Code of Institutes and Precepts, Adapted to the Professional ...