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Accommodation (eye) - Wikipedia
Accommodation is the process by which the vertebrate eye changes optical power to maintain a clear image or focus on an object as its distance varies. In this, distances vary for individuals from the far point—the maximum distance from the eye for which a clear image of an object can be seen, to the near point—the minimum distance for a clear image. Accommodation usually acts like a reflex, including part of the accommodation-vergence reflex, but it can also be consciously controlled ...
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Definition of Accommodation - MedicineNet
Accommodation is the adjustment of the optics of the eye to keep an object in focus on the retina as its distance from the eye varies. It is the process of adjusting the focal length of a lens. CONTINUE SCROLLING OR CLICK HERE FOR RELATED SLIDESHOW
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Accommodation Reflex of the Eye: Definition & Purpose ...
The accommodation reflex of the eye is a response that automatically occurs when you switch focus from an object that's far away to one that's closer. This response enables you to switch between...
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Accommodation in Eye Lens | Definition, Examples, Diagrams
Power of accommodation - definition. The ability of the eye-lens to change its power to accommodate the near and far off distances on the retina is called the power of accommodation. For a healthy human eyes, visible range is from 25 cm to infinity. The distant of the closest object that a human eye can see is called the near-point and the distant ...
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Accommodation of the Eye to Different Focus Distance
Accommodation. When the eye is relaxed and the interior lens is the least rounded, the lens has its maximum focal length for distant viewing . As the muscle tension around the ring of muscle is increased and the supporting fibers are thereby loosened, the interior lens rounds out to its minimum focal length..
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Accommodation reflex - Wikipedia
The accommodation reflex is a reflex action of the eye, in response to focusing on a near object, then looking at a distant object, comprising coordinated changes in vergence, lens shape and pupil size. It is dependent on cranial nerve II, superior centers and cranial nerve III. The change in the shape of the lens is controlled by the ciliary muscles inside the eye. Changes in contraction of the ciliary muscles alter the focal distance of the eye, causing nearer or farther images to come into fo
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Accommodation | definition of accommodation by Medical ...
accommodation. Ophthalmology The automatic adjustment of the lens curvature, resulting in a change in the focal length of the eye, which brings images of objects from various distances into focus on the retina; the ability of the eye to focus at various distances, by changing lens shape. See Reasonable accommodations.
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Accommodation Reflex - an overview | ScienceDirect Topics
The accommodation reflex is an adjustment of the eye for near vision (Fig. 12.5).Three phenomena are involved: • Increased convexity of the lens.The suspensory ligament of the lens inserts peripherally into it. At rest, the ligament maintains tension on the periphery of the lens, such that it remains flat.
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