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What is amblyopia?
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.
What is optical nerve drusen?
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.
What causing rippling water effect and disturbed vision?
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.
Information about does the eye color affect the red eye in a photograph?
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...
What does 75-300mm mean?
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.
Which term describes a defect in the right or left half of the visual field?
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.
Which area is responsible for the head and eye movement in response to visual stimuli?
Frontal Eye Field
How do visual field compare with the fields for a normal eye?
it doesnt
What is a monocular zone?
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.
Where is a lesion 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 fieled?
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.
Which diagnostic test is performed to determaine losses in peripheral vision?
A visual field test is typically performed to determine losses in peripheral vision. It involves staring at a fixed point while lights of varying intensity are shown in different areas of your peripheral vision, and you indicate when you see them. This helps to map out any blind spots or areas of reduced vision in your peripheral field.
What are the most common eye conditions that can affect a cat's vision?
The most common eye conditions that can affect a cat's vision include cataracts, glaucoma, conjunctivitis, and corneal ulcers. These conditions can cause varying degrees of vision impairment in cats.
What is the effect of lesions in the left optic tract?
Lesions in the left optic tract typically result in a visual field defect in the right visual field of both eyes. This is because fibers carrying visual information from the right visual field of each eye cross over in the optic chiasm and travel through the left optic tract.
What is the medical term that describes blindness in one half of the visual field?
Hemianopsia is the medical term meaning loss of half of the visual field.
What is the limit of visibility of human eye?
The limit of visibility for the human eye is typically about 0.1 millimeters under ideal conditions. This means that objects smaller than 0.1 millimeters in size may not be visible to the naked eye. However, factors such as lighting, contrast, and visual acuity can affect this limit.
How is the visual pathway from the eyes different from that of the ears or hands?
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
What is contralateral homoymous hemianopia?
it is partial blindness that may result in blindness in the same visual field of both eyes
