Bilateral hemianopia is a condition where a person has damage to both eye lobes (visual field). In this case, vision is lost or partially lost in a certain area of one visual field. In the case of bilateral hemianopia, both hemispheres are affected and a significant decrease in visual function is observed. In this case, the ability to perceive the usual features of objects suffers, and when looking at objects, patients do not perceive color and shape.
Bilateral hemianopic blindness is possible not only due to unilateral visual damage, but also due to damage to two optic nerves at once. This occurs with hemorrhages and injuries of the retina, ischemia of the fundus, inflammatory diseases, and oncological processes of the retina. Also, bilateral blindness can be caused by disorders of the vestibular and auditory system, stroke, hypertension, strokes or traumatic brain injuries. In this case, the functions of the brain on the affected side are disrupted, which entails a decrease in visual activity and the functions of both visual fields. Hemianopia can also be caused by multiple sclerosis, migraines, organic damage to the central nervous system and cataracts. In addition, there is also primary multiple monocular hemianopia. This variant of bilateral blindness may occur
Hemianopia (hemianopsia) is incomplete blindness in the visual area of one visual field in the presence of a central defect in the visual field; cases of facial paralysis or hemiplegia of the opposite side simultaneously with hemianopsia are more common.
There are unilateral hemianopia (hemiopia) and bilateral. Incomplete damage to the visual field of both eyes is also called bitempo