the loss of one half of the visual field (left or right); usually affects both eyes and is often caused by brain injury, especially stroke
This refers to a loss of vision to one side, so that the affected person may not see to either the left or right of the midline.
Greek hemi = half, an = negative, opsis = vision, hence loss of half of the field of vision.
Loss of vision in half of the visual field. A stroke patient may suffer from this disorder.
Blindness of one half of the visual field of each eye. The prefix 'bitemporal' indicates that the hemi-field affected is the outer half field of each eye and 'homonymous' indicates that the hemi-field defect is on the same side of the field of each eye.
defect of one half of the visual field. It results from a lesion involving the retrochiasmatic portion of the visual pathway.
loss of about one-half of the visual field
Loss of vision of one-half of the visual field.
The loss of visual capacity in one half of the visual field, typically due to damage to primary visual cortex. (Strictly speaking this type of visual field defect is a homonymous hemianopia.) Because each half of the visual field is represented by the contralateral side of the brain, damage to one side of the brain will result in the loss of visual capacity in the opposite side of the visual field.
A loss of one-half of the field of vision; for example, all of the right side of vision is gone. This is sometimes seen in older people with vascular problems, in certain types of brain tumors or after head trauma.
Loss of one-half of the normal field of vision search for Hemianopia
Blindness in half the visual field of both eyes. This means that you can see only to the right or to the left depending on which half is affected.
Blindness in parts of both eyes which can follow damage to the brain. This can cause an inability to see things on the left or right side.
(see also VISUAL FIELDS and HOMONYMOUS HEMIANOPIA). A loss of part of the visual field so that half of the visual field in each eye is lost. The exact area of vision lost depends on where in the complex visual pathways the damage occurs.
Visual field loss to one side.
Decreased or lost vision in one-half of the visual field in one or both eyes.
Field defect in one half of the visual field of one or both eyes. Result of damage to the optic pathways in the brain, caused by acquired brain injuries due to stroke, tumor or trauma.
Defective vision or blindness that impairs half of the normal field of vision.