Anatomy and physiology of the eye, with hints for the preservation of the eyesight (1901)
Herbert, John Frederick, 1860- · Philadelphia, Pa., The author · leaf 28
eye,as, by its action, contracting—now more, then less—theconvexity of the crystalline lens is increased or dimin-i.shed, according to the necessity of the moment; therebyfocusing all external ol^jects accurately on the retina. 22 NERVES OF THE EYE. 1. The Optic Nerve (figures 8 and 11) is a nerve… … Figure ii. The optic tracts and the optic chiasm where optic nerves crossjust before entering tlie e>e. 3. Sensor} Nerves, which are used for taking cogni-zance of impressions received from the external source bymeans of contact. ARTERIES OF THE EYE. The arteries of the eye supply it with…
Eye · Lenses
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