PDF Publication Title:
Text from PDF Page: 085
3.7.6.2 Colour Visual Fields Optometrists using Syntonics have historically evaluated functional, in addition to physiological, visual fields. They are primarily concerned with how much of the field is being used for higher level visual functions, such as colour and form recognition, rather than merely for the detection of movement. Although optometrists using Syntonics have long recognized the functional relationship between the expanse and sensitivity of one’s visual fields and their ability to maximally use vision for learning, athletics, and general performance, contemporary vision research has now demonstrated that each different portion of the visual cortex has a three dimensional topographical map of the visual field imprinted on it (Ramachandran, 1990). These findings, combined with the fact that brain mapping technology has demonstrated that the process of vision involves the entire brain, leads to the conclusion that functional visual field studies evaluating motion, colour, and form recognition, directly relate to how much of the brain is being used. Visual field testing includes testing the white field (1m/m target – non-seeing to seeing) within a 360 degree radius. In this test the optometrist moves a white target in from the periphery until it is seen by the patient. The next test is the colour field test which is a much more accurate indicator of healthy visual fields. In this test the colours red, green and blue are substituted for the white target and the vision field is then mapped again in the full 360 degrees. Generally the green field tends to be the closest to the centre of the visual field, red is situated in the middle and blue the furthest away from the centre. This testing should be done both with and without prescription glasses as lenses constrict the vision fields (glasses emphasize the central field). Visual fields deteriorate firstly in colour then in form and lastly in motion detection, this may also vary from morning to evening. Asymmetrical fields usually mean toxicity (meshing or overlapping) locally or generally. Visual fields can reduce dramatically in trauma and disease, though the most common factors are stresses that occur in every day life. Fields are significantly affected by emotional state. Fear and insecurity tend to result in reduced visual fields. 86 percent of all children with learning disorders or emotional instability have reduced colour vision fields. 25 percent of the mentally impaired have reduced colour vision fields and 21% of normal or gifted people have reduced visual fields (Becraft et al, 1995). 72PDF Image | THE USE OF LIGHT AND COLOUR AS A HEALING MODALITY
PDF Search Title:
THE USE OF LIGHT AND COLOUR AS A HEALING MODALITYOriginal File Name Searched:
light-healing-modality.pdfDIY PDF Search: Google It | Yahoo | Bing
Cruise Ship Reviews | Luxury Resort | Jet | Yacht | and Travel Tech More Info
Cruising Review Topics and Articles More Info
Software based on Filemaker for the travel industry More Info
The Burgenstock Resort: Reviews on CruisingReview website... More Info
Resort Reviews: World Class resorts... More Info
The Riffelalp Resort: Reviews on CruisingReview website... More Info
| CONTACT TEL: 608-238-6001 Email: greg@cruisingreview.com | RSS | AMP |