Want this question answered?
Amblyopia is also known as lazy eye, it is an eye disorder made by an impaired vision in an eye that otherwise appears normal. It is estimated to affect 1-5% of the population. It occurs when the brain "turns off" the visual processing of one eye to prevent double-vision. Amblyopia usually only affects one eye. When people have amblyopia they have to put an adhesive eye patch on the good eye so the bad eye can "catch up" to the good eye.
Optical nerve drusen are a congenital disorder of the optic nerve that can be seen on a dilated eye exam. They are seen as one or more raised areas on the optic nerve head that are composed of bundles of glial tissue. They commonly have no effect on the visual function, but can occasionally be responsible for an increased blind spot. However, this is usually only seen with a visual field exam in an eye doctor's office.
have visual disturbance when reading becomes difficult and have effect of rippeling water around one eye, twice in right eye and once in left eye.
It's caused by the reflection of the color of the Retina.... The retina is red so when the flash from a camera goes all the way to the back of the eye it some of it bounces back and reflects the color of the retina...
this is the number of millimeters a lens will make a sharp image at, usually from its back element. 50mm is usual on 35mm film cameras-i.e.as your eye sees a subject. Digital is different for each camera.
Hemianopia or hemianopia is a defect in the right or left half of the visual field. It can affect one eye but can also affects both eyes.
Frontal Eye Field
it doesnt
A visual field test; the most common type is called a Humphrey Visual Field 30-2 test; older and less common visual field tests include Goldmann visual fields and tangent screen visual fields. Source: I am an Optometrist
If there is normal vision in both eye for the right half visual field but there is absence of vision in both eyes for left half of the visual field, then the lesion is in the left eye. Since the vision for right eye is clear, the lesion is in the left.
Hemianopsia is the medical term meaning loss of half of the visual field.
each eye is not primarily connected to one hemisphere only instead, each visual half field is projected to the opposite hemisphere so, if an image is seen in the right visual field it would be seen in the left hemisphere and if an image is seen in the left visual field it would be seen in the right hemisphere
The monocular zone is the region of the visual field that is seen only by one eye. The binocular zone is the part of the visual field seen by both eyes. The nose is the obvious obstacle between the eyes so it is the prominent cause of the difference between monocular zones of each eye.
it is partial blindness that may result in blindness in the same visual field of both eyes
Dilating the pupils for a visual field test allows more light to enter the eye. If your first visual field was performed while dilated, it's very important that all subsequent visual fields be repeated while dilated, otherwise the undilated tests are considered inaccurate or invalid.
Thomas J. Walsh has written: 'Visual fields' -- subject(s): Eye Diseases, Visual Fields, Visual fields, Diagnosis, Perimetry, Visual Field Tests 'Neuro-ophthalmology' -- subject(s): Diagnosis, Eye Diseases, Eye Manifestations, Neurologic Manifestations, Neuroophthalmology, Diagnositc, Neuro-ophtalmologie, Manifestations oculaires, Manifestations neurologiques, Maladies de l'oeil
each eye is not primarily connected to one hemisphere only instead, each visual half field is projected to the opposite hemisphere so, if an image is seen in the right visual field it would be seen in the left hemisphere and if an image is seen in the left visual field it would be seen in the right hemisphere