- functional visual loss
- subnormal vision or altered visual fields without an underlying physical cause, occurring as a manifestation of a number of psychiatric disorders and malingering.
Medical dictionary. 2011.
Medical dictionary. 2011.
Visual acuity — 20/15 and 20/15 vision redirect here. For other uses, see 2020 (disambiguation). Typical Snellen chart used for visual acuity testing. Visual acuity (VA) is acuteness or clearness of vision, which is dependent on the sharpness of the retinal… … Wikipedia
visual — 1. Relating to vision. 2. Denoting a person who learns and remembers more readily through sight than through hearing. SEE ALSO: internal representation. [Late L. visualis, fr. visus, vision] functional v. loss an apparent loss of v. acuity or v.… … Medical dictionary
Visual impairment — Classification and external resources ICD 10 H54 ICD … Wikipedia
spiral visual field — a visual field pattern, seen in functional visual loss, in which there is a continuous contraction of the visual field as it is plotted from meridian to meridian, so that the line connecting the limits of all of the meridians takes the form of a… … Medical dictionary
Visual memory — Close up of the human eye, where vision begins. Visual memory describes the relationship between perceptual processing and the encoding, storage and retrieval of the resulting neural representations. Visual memory occurs over a broad time range… … Wikipedia
Visual prosthesis — For the non functional prosthesis or glass eye see Ocular prosthesis and Craniofacial prosthesis. A visual prosthesis, often referred to as a bionic eye, is an experimental visual device intended to restore functional vision in those suffering… … Wikipedia
Visual display unit — A visual display unit, often called simply a monitor or display, is a piece of electrical equipment which displays images generated from the video output of devices such as computers, without producing a permanent record. A newer monitor… … Wikipedia
Vision loss — or visual loss is the absence of vision where it existed before, which can happen either acutely (i.e. abruptly) or chronically (i.e. over a long period of time). The effects of visual loss can, before the acquisition of alternative adaptations… … Wikipedia
Cognitive neuroscience of visual object recognition — Object recognition is the ability to perceive an object’s physical properties (such as shape, colour and texture) and apply semantic attributes to the object, which includes the understanding of its use, previous experience with the object and… … Wikipedia
Amblyopia — Impaired vision in an eye due to a disorder of the brain cells that control the vision in that eye, not usually due to a problem with the eye itself. Amblyopia is caused by lack of use of an eye when the brain favors the other eye. The eye is… … Medical dictionary