5/8/2023 0 Comments Pupil peekit![]() ![]() ![]() Headaches : Cluster headaches often affect one side of your head, and therefore, one of your eyes/pupils.Also, the size of your pupils may affect complications after the surgery. This type of surgery may affect your pupil size. Cataracts : Cataracts make the normally clear lenses in your eyes foggy or cloudy.One of the first things a provider will check is how your pupils look. One of the most common types is a concussion. Traumatic brain injury : These types of brain injuries involve your brain hitting against the skull.Palsy of this nerve affects many functions. It controls the muscles that move your eye, constrict your pupils, focus your eyes and position your upper eyelid. Third cranial nerve palsy: The third cranial nerve is the oculomotor nerve.There are three types of Horner syndrome. Palsy is a word used for nerve paralysis. Horner syndrome : This rare condition affects the eyes and the face, usually on one side.It can also make your pupil stay constricted rather than dilated. Adie syndrome: This condition means that your pupil stays dilated and doesn’t react normally to changes in light.Mydriasis is the name of the opposite condition, having dilated pupils. Small pupils can happen when you’ve had a stroke or when you’ve used opiates, among other reasons. ![]() Miosis (small pupil): The medical name for very small pupils (constricted) is miosis.Argyll Robertson pupil: This term refers to small pupils that get smaller (constrict) correctly when focusing on nearby objects, but not when they’re exposed to bright light.Polycoria: This is the medical term for having more than one working pupil in one eye.It can be normal, temporarily, but it can also be caused by serious conditions. Anisocoria (uneven pupil size): This is the medical term for one pupil being bigger than the other.Marcus Gunn pupil: This condition means that your pupils don’t respond normally when an eye care specialist shines a light into your eyes.Common conditions of the pupil of the eye include: Conditions of pupil size and behavior The action is produced by the sphincter pupillae muscle via parasympathetic nervous system control ( Cranial nerve III: Oculomotor).Īperture located in the center of the eye that allows light to enter the eyeball.What are the common conditions and disorders that affect the pupil?Ī variation in pupil size can be an issue itself or a symptom of other conditions. Pupil constriction occurs in bright light situations. This occurs in low light situations by the action of the dilator pupillae muscle under sympathetic nervous system control. Pupil dilation increases the size of the pupil, allowing more light to pass through. These movements are involuntary, under the control of the autonomic nervous system. The pupil changes size to allow more, or less, light to enter the eyeball. This light then interacts with the cells of the retina, working as part of the visual pathway to provide the ability of sight. The pupil’s function is to allow light to pass through and enter the eye. Surrounding the pupil is the colored part of the eye, the iris. The pupil is the small black circle located in the center of the eyeball. ![]()
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