Visual field determination is used primarily for early detection of glaucoma. During the visual field examination (perimetry), the examination of the outer and inner limits of the visual field as well as the sensitivity of the visual function outside the site of fixation is performed.
The visual field comprises that area of vision which can be grasped with unmoving eyes and head. Rough estimation of the visual field is performed with the simple parallel test, in which the patient's visual field is compared with that of the examiner. The exact visual field determination is done by computer perimetry.
Anatomy of the human eye
Optic nerve (lat. Nervus opticus) in the eye
The optic nerve is responsible for ensuring that information from the retina reaches the brain. The concentrated bundle of millions of nerve fibers converts the light stimuli from the retina into impulses and sends them to ...
Inner eye shell
The inner shell forms the retina. It is used to receive light stimuli. The light impressions are transmitted to the brain via the optic nerve and processed there.
Blind spot (papilla)
The so-called blind spot is the point in the eye where the retina is interrupted and merges with the optic nerve. Since there are no light receptors at this point, ...