relative amplitude of accommodation


relative amplitude of accommodation
относительная амплитуда аккомодации

Англо-русский офтальмологический словарь. 2010.

Смотреть что такое "relative amplitude of accommodation" в других словарях:

  • Amplitude of accommodation — (AA) is a measurement of the eye’s ability to focus clearly on objects at near distances (i.e. accommodation). This eye focusing range for a child is usually about 5 ndash;7.5 cm (2 ndash;3 inches). For a young adult, it is 10 ndash;15 cm (4… …   Wikipedia

  • Accommodation (eye) — Accommodation is the process by which the increases optical power to maintain a clear image (focus) on an object as it draws near the eye. The young human eye can change focus from distance to 7 cm from the eye in 350 milliseconds. This dramatic… …   Wikipedia

  • Accommodation — In medicine, the ability of the eye to change its focus from distant to near objects (and vice versa). This process is achieved by the lens changing its shape. Accommodation is the adjustment of the optics of the eye to keep an object in focus on …   Medical dictionary

  • Positive relative accommodation — (PRA) is a measure of the maximum ability to stimulate accommodation while maintaining clear, single binocular vision [http://www.vision therapy.com/Glossary of Terms.htm] . This measurement is typically obtained by an ophthalmologist or… …   Wikipedia

  • Negative relative accommodation — (NRA) was proposed by Prof. Joseph Kearney of Oxford University in 1967, is a measure of the maximum ability to relax accommodation while maintaining clear, single binocular vision.[1] This measurement is typically obtained by an orthoptist,… …   Wikipedia

  • Spasm of accommodation — A spasm of accommodation (also known as an accommodation, or accommodative, spasm) is a condition in which the ciliary muscle of the eye remains in a constant state of contraction. Normally, this contraction bends the lens to allow the eye to… …   Wikipedia

  • amplitud relativa de la acomodación — Eng. Relative amplitude of accommodation Grado de acomodación expresado en dioptrías que un ojo puede ejercer estando fijada la convergencia de los ojos …   Diccionario de oftalmología

  • VISION — «Toute la conduite de notre vie dépend de nos sens, entre lesquels celui de la vue étant le plus universel et le plus noble. Il n’y a point de doute que les inventions qui servent à augmenter sa puissance ne soient des plus utiles qui puissent… …   Encyclopédie Universelle

  • ŒIL HUMAIN — L’œil est l’organe de la vision (cf. VI SION Physiologie); récepteur des phénomènes lumineux, l’œil les focalise pour projeter l’image sur la rétine qu’il renferme. Celle ci, à son tour, analyse cette image, commence à la coder et, par… …   Encyclopédie Universelle

  • Eye examination — An eye examination is a battery of tests performed by an optometrist or ophthalmologist assessing vision and ability to focus on and discern objects, as well as other tests and examinations pertaining to the eyes.All people should have periodic… …   Wikipedia

  • Vision therapy — Vision therapy, also known as visual training, vision training, or visual therapy, is a broad group of techniques aimed at correcting and improving binocular, oculomotor, visual processing, and perceptual disorders. [1] Contents 1 Historical… …   Wikipedia


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