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3 Responses to “eye twitching, dizzyness, v. high blood press, ct scans?”
An afferent pupillary defect (APD) occurs when the nerve pathways to the brain fail to properly transmit messages. It can occur from a number of disorders, and ranges from mild to severe. The finding is a sign of an underlying disorder and is not specifically associated with any particular disease.
An afferent pupillary defect is identified by examining the eyes with a bright light. In normal circumstances, when a light is shone in one eye, both pupils constrict. However, when a light is shone in the abnormal eye of a patient with an APD, the pupil of the affected eye paradoxically dilates rather than constricts. This abnormal response signifies the brain is not receiving the message properly.
A mild APD (slight constriction of the affected pupil), may be a sign of underlying amblyopia, vitreous hemorrhage, retinal scars, severe age related macular degeneration, branch retinal vein or artery occlusion, or retinal detachment. If an APD is severe (dilation of the affected pupil), it generally indicates optic nerve disease such as ischemic optic neuropathy, optic neuritis, severe glaucoma, central retinal artery or vein occlusion, or in rare cases, a lesion of the optic chiasm or tract due to a pituitary tumor or stroke.
January 15th, 2009 at 9:21 am
Allen Flinn
They may be trying to determine whether your brother suffered a stroke.
January 17th, 2009 at 5:49 am
Charlene Cornelius
An afferent pupillary defect (APD) occurs when the nerve pathways to the brain fail to properly transmit messages. It can occur from a number of disorders, and ranges from mild to severe. The finding is a sign of an underlying disorder and is not specifically associated with any particular disease.
An afferent pupillary defect is identified by examining the eyes with a bright light. In normal circumstances, when a light is shone in one eye, both pupils constrict. However, when a light is shone in the abnormal eye of a patient with an APD, the pupil of the affected eye paradoxically dilates rather than constricts. This abnormal response signifies the brain is not receiving the message properly.
A mild APD (slight constriction of the affected pupil), may be a sign of underlying amblyopia, vitreous hemorrhage, retinal scars, severe age related macular degeneration, branch retinal vein or artery occlusion, or retinal detachment. If an APD is severe (dilation of the affected pupil), it generally indicates optic nerve disease such as ischemic optic neuropathy, optic neuritis, severe glaucoma, central retinal artery or vein occlusion, or in rare cases, a lesion of the optic chiasm or tract due to a pituitary tumor or stroke.
January 19th, 2009 at 9:51 am
Gina Stout
can be signs of stroke or brain/kidney tumors…….bets of luck to yall……….