Coma or brain death: Severe brain damage may cause a change in the size and reactivity of the pupils.Surgery: Eye surgery may result in alterations in pupil size, which can be permanent.Seizure: Sometimes seizures (a disruption of electrical activity in the brain) can cause changes in the pupils, which may be equal or unequal.Ocular diseases include abnormalities of the iris, cornea, lens, or retina. While small dierences in pupil size are normal and can even come and go (physiologic anisocoria), constant and signicant dierences in pupil sizes may be a sign of damage to the nerves that control the pupils or to the brain. Horner’s syndrome is a rare genetic condition that affects the tissue around your eyes. Some are temporary, but some can be life-threatening. Anisocoria can be caused by lots of conditions. It’s similar to the way you might see swelling in your body referred to as edema. Normally our pupils are relatively the same size. Anisocoria is the medical term for asymmetric (different sized) pupils. Migraine: While it is not common, migraines can cause anisocoria. Anisocoria or unequal pupils may be caused by ocular or neurologic disorders. Anisocoria is a medical term for unequal pupil size.Vision loss: Significant vision defects can affect pupil size and reactivity.Increased intracranial pressure: This can result from a brain tumor, meningitis (inflammation of the fluid around the brain), or a stroke.Trauma: An injury affecting the eye or the brain may cause the pupils to be unequal.Inflammatory conditions, such as MS and sarcoidosis, also can do this. Inflammation: An infection affecting the eye or the cranial nerves can cause anisocoria. The medical term for pupils of different sizes is anisocoria, and doctors categorize this into three further types, depending on the underlying cause. Cranial nerve damage: This can occur due to a stroke (a blockage of blood flow or bleeding in the brain), brain aneurysm (defect in a blood vessel), or a brain tumor.Multiple sclerosis (MS): MS is a chronic neurological disorder that causes symptoms affecting vision, movement, sensation, and more.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |