Tumors are also one of the reasons why damage to the nerves or brain occur causing Anisocoria. Damage to the brain causing anisocoria is normally seen in cases of stroke or hemorrhage due to injury to the brain such as being hit on the head after a crash or after being hit by a hard object. (1) An individual with nerve damage also tends to have strabismus along with Anisocoria. Horner Syndrome is the most common nerve damage that causes Anisocoria. and is usually considered benign,2,3 although exaggerated hippus has been. About 90 of cases occur in women between 20 and 40. Bilateral measures of pupil size and dynamics were made over 2.6 seconds using. Seek immediate medical attention for the sudden onset of unequal pupil size. left pupil, 2 mm in bright light and 4 mm in dim light. This is usually seen whenever there is damage or injury to the spinal cord or the brain. Tonic pupil is where one pupil will appear abnormally large in light, taking a long time to constrict. Unequal pupil size can be a sign of stroke, brain injury, or eye injury. Key words: migraine, anisocoria, benign episodic mydriasis, pupil. It seems to have resolved, but I spent months learning about all the horrific post-Covid eye complications kids are experiencing behind the scenes. (4)Īnisocoria Caused by Neurological Conditions or Damage to Brain/Spinal Cord: There are also quite a few neurological conditions which tend to cause Anisocoria. RT LauraMiers: Last year, my 8-year old was diagnosed with Anisocoria (unequal pupil size). Complication arising out of cataract surgery is one of the many causes for Adie’s pupil resulting in Anisocoria. The pupil that is affected also becomes nonreactive to light. difference of less than 1mm in pupil size can occur normally and are generally benign unless presenting along with ptosis or an ocular motility deficit. (3) It is a benign medical condition and poses no threat to the vision of the affected patient. Adie’s pupil is yet another medical condition that causes Anisocoria. Inflammation of the iris is a potential cause for Anisocoria. Medical Conditions Causing Anisocoria: There are also certain medical conditions, which can cause anisocoria. The pupil is the black part in the center of the eye. Certain medications given for eye infections like pilocarpine tend to cause anisocoria. Anisocoria is a condition characterized by unequal pupil sizes 1). This can happen due to a motor vehicle crash where shreds of glass penetrate the eye causing injury to the pupils. Anisocoria Caused by Injury (3): An injury or trauma to the eye is one of the most common causes of anisocoria.
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