Eye trouble
A eye trouble indicates an anomaly of the Vision which can be Congénital E or appraître in a brutal or progressive way.
There exist different eye troubles :
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tubular Vision (in “gun of rifle”): The person sees only one central part of her environment. Its field of view is narrow. Most of the time, this disorder is accompanied by a bad night vision and a strong sensitivity to the dazzling.
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central Scotome (in the middle of the retina): The person perceives her environment very well but donot can see what is central for him. This side vision returns difficult the reading of very descriptive to him.
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fuzzy Vision: The person distinguishes the masses which are contrasted.
The eyes being fragile bodies, they can be affected by failures, like the Myopie, the Presbytie, the Hypermétropie, the Nystagmus, the Astigmatisme which deteriorate the clearness of the perceived image. Other pathologies are also the Strabisme, the Daltonisme and the cataract.
See too
- anomalies of the refraction: myopia, astigmatism, hypermétropie, presbyopia
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Course on the anomalies of the vision, University Paris 5.
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