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1. Relating to vision.
See also: internal representation.
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]
Farlex Partner Medical Dictionary © Farlex 2012


1. Relating to vision.
2. Denoting a person who learns and remembers more readily through sight than through hearing.
[Late L. visualis, fr. visus, vision]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


Relating to vision.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann

Patient discussion about visual

Q. Can visual aura alone be migraine? I'm 21 years old girl, and for the last six years, about once a week, when I wake up from night sleep all I see in my left eye is a very bright light. After some time my vision returns. In the last few weeks it became more frequent and also starts to happen in the other eye. I consulted my doctor and she told me it's not an important thing, and that it's probably a specific type of migraine. However, I don't have any pain at all. Does anyone else have this? Is it possible for migraine to occur only with aura, without any pain?

A. Hi,

I'm sorry to hear about your problem. Whatever your doctor told you, you should know that if it bothers you, it IS an "important thing". I also suffer from similiar thing (only visual disturbances after I wake up, without any pain), and when my doctor prescribed me meds they went away. You should consult your doctor again and ask him for a solution for this thing.

Q. What are the visual distinctions between thermal burns and frostbite? Is it possible to definitively distinguish the two from each other in all cases, or do they present identically in many cases? In other words, are frostbite injuries-for all intents and purposes, actual burns and if they are not, in what ways do they differ?

A. Early frostbite and minor burns may resemble one another visually (by whitened, blanched looking skin, and blister formation). However, last stage frostbite and thermal (heat) burns are very different.
In late stage frostbite, the ice crystals in the cells melt and the ruptured cells pour out their contents, then blisters may form. Since the affected area has basically lost circulation, gangrene sets in rather quickly and the tissue turns black and dry.
Deep (full thickness) heat related burns are surrounded by areas of erythema (reddened skin) and skin with less degrees of burning. Also, eschar is obviously charred skin tissue forming a scab like structure, and looks nothing like gangrene. The wound bed in a burn leaks plasma constantly. Blistering is pretty immediate with heat related burns of a sufficient degree.

More discussions about visual
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References in periodicals archive ?
On the other hand Alexander, (1996); and Griffin-Shirley and Nes, (2005), found that students with visual impairment have not developed significantly low self-concept than their sighted peers.
Frictionless conversion: Visual search cuts out the middleman when consumers are looking to purchase.
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The origin of visual dependence is unclear; symptoms can be generated by an assortment of pathological situations.
'In our three-dimensional environments, objects in the lower half of our visual field are usually close, a part of near space.
FIELDS PROTOCOL: The 30-2 programme on Humphrey's Field Analyzer with a white on white Goldman size 3 target was use for visual field examination.
The components and media of the first two sections are then situated in contexts in the final section of the text: Visual Communication in Cultural Contexts.
To find out academic problems faced by students with visual impairment in inclusion at higher education level.
It annoys him that ethnomethodologists use video data but pay little attention to what visual sociologists are doing.
"Many people have this overconfidence in how well they can multitask, and our study shows that this particularly is the case when they combine two visual tasks," said Zheng Wang, lead author of the study and assistant professor of communication at Ohio State University.
The research community has made it clear to us that visual data for many variable stars still have scientific value, and that visual observing should continue.