Homonymous

Homonymous is a term used to describe a visual defect in which both eyes have a limited field of vision on one side of the body (see Hemianopia).

With a homonymous defect, a person develops blind spots in the corresponding halves of the visual field of each eye. This occurs due to damage to the occipital lobe of the brain, or the visual pathways leading from the eyes to the brain. For example, with a stroke in the left hemisphere of the brain, right-sided homonymous hemianopia develops - loss of the right halves of the visual field of both eyes.

Thus, with a homonymous defect, a person does not see objects in one half of space. This seriously limits vision and orientation in the environment. Diagnosis of homonymous hemianopia is important for determining the cause of the disease and prescribing adequate treatment.

Homonymous visual impairment is a defect in which the field of vision is limited on both sides of the body.

Homonymous visual impairment occurs when the visual pathways and centers in the brain are damaged.

In homonymous visual impairment, vision is preserved in only one half of the visual field, while the other half remains blind.

Homonymous (Greek homos – identical + onyma – name; homo-onymos – same name, identical) visual perception of a defect (hemianopsia, agnosis, bitemporal hemianopsia, etc.). It is observed when monocular or unilateral inputs of the visual system are affected. It is considered one of the first anagnostic forms of visual impairment, the occurrence of which is associated with a temporary non-simultaneous unilateral pathological process in the visual pathway system. It is possible in cases where the peripheral visual field is blocked by a projection defect equivalent to the left rod and right cone traces. There are bitemporal (when the centers of projection of the visual pursuit field are on opposite sides), usually somewhat converging, as in the occipital trunk, asymmetric (to the right and left) with pyramidal lesions and dominant (when one defect overlaps the zone of the bipolar center), symmetrical hemiangiopathy of the retinal vascular system , as well as unilateral amblyopia (blindness), accompanied by some expansion of the blind spot from excitation from the surrounding border paralaterals.