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The white cup is a pit with no nerve fibers. As glaucoma advances, the cup enlarges until it occupies most of the disc area. [2] The cup-to-disc ratio compares the diameter of the cup portion of the optic disc with the total diameter of the optic disc. A good analogy to better understand the cup-to-disc ratio is the ratio of a donut hole to a ...
Cupping causes breaks in the capillaries (small blood vessels) in the papillary dermis layer of the skin, resulting in the appearance of petechiae and purpura. [1] These marks are sometimes mistaken for signs of child abuse when cupping is performed on children. [1] Cupping therapy adverse events can be divided into local and systemic adverse ...
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The visual system is the physiological basis of visual perception (the ability to detect and process light).The system detects, transduces and interprets information concerning light within the visible range to construct an image and build a mental model of the surrounding environment.
When the test is performed in an eye with an afferent pupillary defect, light directed in the affected eye will cause only mild constriction of both pupils (due to decreased response to light from the afferent defect), while light in the unaffected eye will cause a normal constriction of both pupils (due to an intact efferent path, and an ...
4) Use a Fleshlight (or another masturbation sleeve). Sex toys aren't just for people with a vulva. For penis-owners, Emily Morse, a sex expert and host of the popular podcast Sex with Emily ...
Traditionally, eye patches are used to block the field of view of one eye. Strabismic or amblyopic children are often required to wear an eye patch for hours or days. The use of the patch generally alternates on a daily or weekly basis between the two eyes, with a long time duration for the patching of the stronger eye and a shorter time ...
A conjugate eye movement is a movement of both eyes in the same direction to maintain binocular gaze (also referred to as “yoked” eye movement). This is in contrast to vergence eye movement, where binocular gaze is maintained by moving eyes in opposite directions, such as going “cross eyed” to view an object moving towards the face.