Saturday, August 25, 2007

............................................................. The Theory Of Work Of An Eye,

............................................................. The theory of work of an eye, on , other - in it(her) main The role in processes of accommodation is allocated(removed) to external muscles of an eye. Look at figure 3. On it(him) are represented external - eyes. As you can see, from above, from below and on each side eye - so-called direct muscles of an eye, which -last its(his) turns in various directions. In figure you See also two other muscles of an eye, which the name slanting Muscles and which surround an eyeball on a circle. - , that necessary adjustment of an eye for precise - on close distance it is carried out by pressure on Eyeball of slanting eye muscles, therefore it - the form, being extended in a -back axis. A crystalline lens Thus keeps away from a retina of an eye, keeping the form Constant. At sight afar slanting muscles of an eye relax, And the eye accepts the usual spherical form, - in a condition of rest of an eye for sight afar. As proofs of correctness of theory Has put forward the following was(former) known earlier, and also for the first time Found out by it(him) the facts: The traditional approach could not explain, how Accommodation in cases, when people with removed was carried out Because of a cataract a crystalline lens, could read well enough and To see the removed objects.

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