The visual pathway refers to special-somatosensitive fibers that run from the retina of the eye to the visual cortex of the brain. The complex structure of the visual pathway makes human vision possible. What is the visual pathway? The visual pathway is a component of the brain. Thus, all components originate in this region of … Visual Pathway: Structure, Function & Diseases
Introduction The visual pathway is a part of the brain, because all its components originate there, including the optic nerve. The visual pathway begins at the retina, whose ganglion cells are the starting point, and ends in the visual cortex in the cerebrum. Its complex structure enables us to see. Anatomy of the visual path … Visual path
Course of the visual path The visual pathway extends from the retina of the eye to various areas of the brain. The most distant area of the brain is located at the back wall of the skull and thus at the head on the opposite side of the eyes. The beginning of the visual path … Course of the visual path | Visual path
Insertion of the visual field The retinal sections reflect the visual fields in opposite arrangement. The right part of the visual field of each eye is recorded on the left side of the retina. The left halves of the visual fields are accordingly imaged on the right part of the retina.The right and left tractus … Insertion of the visual field | Visual path
What is Chiasma Syndrome? Chiasma syndrome consists of three components and occurs when the intersection of the visual pathways along the midline is damaged. This results in a conduction disorder of the central parts of the retina and the field of vision of the outer sides of both eyes is no longer perceived. In addition, … What is Chiasma Syndrome? | Visual path
Introduction /Anatomy The chiasma is the junction of the optic nerve. Here, the fibres of the respective nasal retinal halves of both eyes cross to the opposite side. The optic tract follows the chiasm. Injuries to the optic chiasm lead to the chiasm syndrome. Definition Chiasma syndrome is the name given to an occurrence of … Chiasma Syndrome
Definition The visual center, also called the visual cortex, is part of the visual system. It is located in the occipital lobe of the brain and belongs to the central nervous system. This is where information from nerve fibers in the visual pathways arrives, is processed, interconnected, interpreted and coordinated. Disturbances in the visual pathways … Viewing Center
Clinical condition of the visual center Damage to the visual path can be caused by numerous processes: Such damage can result in relatively specific vision failures, depending on the location of the visual path or visual system. For example, a unilateral lesion of the optic nerve leads to unilateral blindness. This can occur, for example, … Clinical condition of the visual center | Viewing Center
A scotoma refers to the weakening or even loss of part of the visual field. The visual perception is restricted or cancelled in this area. Several forms of scotoma can be distinguished, depending on the place of origin and the severity of the failure. The cause can be in the area of the eye, the … Scotoma
What is the nature of a visual field failure? A visual field loss is the weakening or even the loss of a part of the visual field. Visual perception is restricted or cancelled in this area. Possible forms of representation can be: Flashes of light, Small, dancing points (so-called Mouches volantes), Color changes, Dark spots … What is the nature of a visual field failure? | Scotoma
Associated symptoms The accompanying symptoms depend on the cause of the scotoma and cannot be named generally. If the scotoma is an expression of a stroke, it can also lead to double vision, hemiplegia of the body and speech disorders. If the scotoma is caused by glaucoma, the patient will have severe symptoms or no … Associated symptoms | Scotoma
Duration The duration of the scotoma depends on the cause of the scotoma, how quickly it is found and then treated. As long as the associated area of the brain is less supplied with oxygen, there is an increased intracranial pressure or there is a disease of the retina or the optic nerve, there will … Duration | Scotoma
