- Homonymous hemianopsia
Name = PAGENAME
Caption = Paris as seen with left homonymous hemianopsia
ICD10 = ICD10|H|53|4|h|53
ICD9 = ICD9|368.46
Homonymous hemianopsia is a medical term for a type of partial
blindnessresulting in a loss of vision in the same visual fieldof both eyes.
It is usually caused by injury to the
brainitself such as stroke or trauma, rather than malfunctioning of the eye itself.
neoplastic(malignant or benign tumours) lesions of the optic tract, visual cortexor uncal herniation can cause a contralateralhomonymous hemianopsia. For example, a person who has a lesion of the right optic tractwill no longer see objects on their left side. Similarly, a person who has a stroke to the right occipital lobewill have the same visual field defect, but there will be macular sparing.
A stroke on the entire right side of the brain, in addition to producing a homonymous hemianopsia, will also lead to the syndrome of
However, the symptom of homonymous hemianopsia isn't necessarily of a lethal cause. For instance, it can constitute the aura phase of migraine.
"Homonymous hemianopsia" can be broken down as follows:
* "Homonymous": same
* "hemi": half of the visual field
* "anopsia": blindness"Homonymous hemianopsia" is also called "Homonymous hemianopia".
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