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Vision The act of perceiving and interpreting visual information with the eyes, mind, and body. |
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Vision Therapy
(also known as vision training) Therapy involving exercises which are aimed at improving visual skills such as, eye teaming, binocular co-ordination and depth perception, focusing, acuity (clarity of sight), and "hand-eye" or "vision-body" co-ordination. Vision therapy can involve a variety of procedures to correct neuro-physiological or neuro-sensory visual dysfunctions. Practiced by optometrists. See Vision Therapy for more information. |
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Vision
problems that may affect your child’s academic achievement. Having 20/20 eyesight doesn’t mean that a child has all the visual abilities needed for learning. Other visual skills play a critical role, such as the ability to easily focus or point the eyes or coordinate eye movements. Children with vision problems might do the following: Have difficulty following a line of print in a book or on a computer screen. Have difficulty reading or doing homework for any length of time. Constantly look up and away from books or the computer. Frequently looses their place when reading. Have to reread materials in order to understand what they have read. Get headaches and pain in their eyes after reading for a short time. Get fidgety when doing close work. Close or rub one eye when reading. |
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Visual Acuity The ability to see clearly at distance. It is usually given as a fraction where the top number is the distance at which the test is performed. The second figure is the level of vision. It is usual to think of 20/20 as normal. The larger the number on the bottom of the fraction the worse the vision is. |
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Visual Analysis skills The ability to discriminate between visible likenesses and differences in size, shape and colour. |
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Visual Field The area of vision to the side when one is looking straight ahead. Defects in the sensitivity of the peripheral vision can be helpful in diagnosing many types of visual and general health conditions. |
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Visualisation The ability to created a picture in our mind's eye what we see, have seen or want to create in our mind to see and to use these images in thinking. Some people under use these areas of skills and this can effect their ability to match images with those held in memory causing problems in decoding skills. Others have problems in matching recalled images with sounds affecting encoding skills. Visualisation skills are important in spelling. |
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Visual Memory The ability to hold visual images in memory to be recalled at a later date. Psychologists often separate this area into several discrete sub areas referred to as long term memory, short term memory and working memory. |
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Visual Motor Skills The ability of our eyes to accurately guide our hands. (i.e. hand-eye co-ordination). Good Visual Motor skills are required in handwriting, drawing and sports. |
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Visual Perception Skills A range of skills needed to understand and interpret the pictures created by the eyes when light is focused on the retina. The interpretation enables humans to take appropriate action as a result of what he or she sees. There are many areas of skills. Behavioural optometrists tend to assess many of them. Such skills include the following:- figure-ground , form constancy, visual discrimination, visual memory, visualisation and visual analysis. Selected areas are usually assessed during a full Functional evaluation. |
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Visual Spatial Skills The ability to judge the relative position of different objects. This ability is needed to tell the difference between similar letters such as 'b' and 'd', 'p' and 'q', 'm' and 'w'. |
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What is a Learning Related Vision
Problem? Learning related vision problem is a visual problem that directly affects how we learn, read or sustain close work. Visual problems in any of the following areas can have a significant impact on learning: Eye tracking skills (eyes staying on target, i.e., following a line of print) Eye teaming skills (two eyes working together as a synchronized team) Binocular vision (simultaneously blending the images from both eyes into one image) Accommodation (eye focusing) Visual-motor integration (i.e., eye-hand coordination, sports vision, etc.) Visual perception (visual memory, visual form perception, visualization, directionality. As vision and learning are intimately connected, a vision problem can be easily mistaken for a learning problem. A comprehensive vision evaluation can help to uncover any visual problems that might interfere with the ability to learn, and provide needed treatment. |
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