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File:Schematic wowza diagram of the human eye.svg International version. Based on a bitmap uploaded to the English Wikipedia as Image:Schematic diagram of the human eye.png by User:Delta G. Although it was created in Sodipodi, for some reason it was not uploaded as a vector image.
The pupillary dilator acts to increase the size of the pupil to allow more light to enter the eye. It works in opposition to the pupillary constrictor. [7] Pupil dilation occurs when there is insufficient light for the normal function of the eye, and during heightened sympathetic activity, for example in the "fight-or-flight reflex". [7] [8]
Dilation and constriction of the pupil Pupillary response is a physiological response that varies the size of the pupil between 1.5 mm and 8 mm, [ 1 ] via the optic and oculomotor cranial nerve. A constriction response ( miosis ), [ 2 ] is the narrowing of the pupil, which may be caused by scleral buckles or drugs such as opiates / opioids or ...
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The human eye is a sensory organ in the visual system that reacts to visible light allowing eyesight. Other functions include maintaining the circadian rhythm, and keeping balance. Arizona Eye Model. "A" is accommodation in diopters. The eye can be considered as a living optical device.
The is a layered SVG file with separate layers for the cortex, cerebrellum and eye.}} |Source=Eigenes Werk (own work) |Author=Hankem |Date=2009-05-06 |Permission={ File usage No pages on the English Wikipedia use this file (pages on other projects are not listed).
Many automated pupilometers can also function as a type of pupil response monitor by measuring pupil dilation in response to a visual stimulus.. In ophthalmology, a pupillary response to light is differentiated from a pupillary response to focus (i.e. pupils may constrict on near focus, as with the Argyll Robertson pupil) in the diagnosis of tertiary syphilis.
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