Scotoma Negative

Negative scotoma (lat. scotomata negativa) is a defect in the visual field, in which in the dark or in conditions of increased brightness there is a loss of central parts of the visual field. Characterized by impaired perception of light objects located in the center of the visual field.

Negative scotoma occurs when the central part of the retina, optic nerve or chiasm is damaged. It can be the result of a head injury, stroke, multiple sclerosis, or other diseases.

Symptoms of negative scotoma can be different and depend on the degree of damage to the central region of the retina. With mild scotoma, patients may have difficulty reading, recognizing faces, or performing tasks that require focusing on the central region of the visual field. In severe cases, scotoma can lead to complete loss of vision in the central region of the visual field and disruption of orientation in space.

To diagnose a negative scotoma, special tests are used that allow you to determine the degree of visual impairment in the central part of the visual field. Treatment for scotoma depends on the cause of its occurrence and may include drug therapy, surgery, or optical correction.

Scotoma is a deviation of the eye in any direction, which leads to a decrease in vision. Scotoma can be either positive or negative. Today we will talk about negative scotoma, i.e. when there is a color vision disorder due to the discoloration of a color or the space between two colors. This can occur due to various diseases of the internal organs or visual system, as well as physiological disorders that lead to abnormalities in the eyes.

The most common symptom of a negative scotoma is loss of rich color from the field of vision. In some cases, a field defect is observed in the form of its complete absence. Decreased visual acuity is also possible. Most often, negative scotoma occurs as a result of eye injuries, various surgical interventions, and progressive ophthalmological diseases.