Immobility of pupils Hemianopic

Hemianopic pupillary immobility (i. pupillarum hemianoptica) is a symptom of damage to the optic nerve or visual pathways.

In this case, there is a lack of reaction of the pupil to light from the affected visual field. This is due to a disruption in the conduction of nerve impulses from the retina to the centers of the brain that regulate the diameter of the pupil.

When the unaffected eye is illuminated, its pupil narrows, and when the affected eye is illuminated from the side of the visual field defect, the pupil does not react. This makes it possible to identify damage to the visual analyzer.

Fixed pupils are an important diagnostic symptom for diseases of the optic nerve and pathways (for example, optic neuritis, brain tumors). Therefore, studying the reaction of pupils to light is of great clinical importance.

Hemianopic Pupillary Immobility: Understanding and Impact on the Visual System

Introduction:

Hemianopic pupillary immobility, also known as iris immobility or pupillary hemianopsia, is a medical condition in which one or both pupils do not respond to changes in light. This is observed in cases of hemianopia, which is characterized by loss of vision in half the visual field. In this article, we will look at the causes, diagnosis, and potential consequences of hemianopic pupillary immobility on the visual system.

Causes of hemianopic pupil immobility:

Hemianopic pupillary immobility is usually caused by damage to the nerve pathways responsible for controlling pupil movement. This can be the result of various medical conditions such as stroke, brain tumors, head injuries, or other neurological disorders. When the visual field on one side is damaged, the corresponding pupil loses the ability to respond to changes in light.

Diagnostics:

Diagnosis of hemianopic pupillary immobility involves a thorough clinical examination and assessment of the patient's visual function. An ophthalmologist can observe the pupils at different light levels and check their reaction. Additional diagnostic tests, such as neuroimaging and magnetic resonance imaging, may be used to determine the cause of hemianopia and identify possible damage to the nervous system.

Potential Consequences:

Fixed hemianopic pupils can significantly affect the patient's visual system and behavior. One possible consequence is a loss of ability to adapt to changes in light, which can make it difficult to see in different lighting conditions. This can lead to limitations in daily activities and reduced quality of life.

In addition, the immobility of hemianopic pupils can affect the patient's ability to navigate in space and recognize objects in the affected half of the visual field. This may cause difficulty reading, driving, and may increase the risk of injury due to the inability to notice objects or obstacles in the environment.

Treatment and management:

Treatment for hemianopic pupillary immobility is aimed at eliminating or improving the underlying disease that causes hemianopsia. In some cases, drug or surgical intervention is necessary to restore pupillary function. The ophthalmologist and neurologist can work together to develop an individualized treatment plan and manage the patient's condition.

When hemianopic pupillary immobility cannot be completely corrected, patients may be offered compensatory strategies and rehabilitation measures. This may include teaching patients to use their remaining visual field more effectively, using assistive devices such as special glasses or magnifying glasses, and teaching compensatory eye and head movements to maximize remaining visual function.

Conclusion:

Hemianopic pupillary immobility is a medical condition that occurs with hemianopia and is associated with the loss of pupillary response to changes in light. This condition can significantly affect the patient's visual function and behavior. Diagnosis and treatment of hemianopic pupillary immobility require a comprehensive approach, including ophthalmological and neurological examination. Compensatory strategies and rehabilitation measures can help patients cope with the limitations caused by this condition and improve their quality of life.