Gage, Alfred P. (Alfred Payson), 1836-1903, Fessenden, C · Toronto : W.J. Gage · leaf 391
4, calledthe retina, is fornu-d by expansionof the optic nerve 0. The front oftlie choroid coat ii is called the iris;its color constitutes the so-called color of tlie eye. In the center of the iris is a circular openings,called the pnjnl, whose function is to regulate, by involuntary enlarge-ment… … HtnviAN EYiJ. 869 eye Into two chambers; the anterior chamber 7 is filled with a limpidliquid, called the aqueous humor; the posterior chamber 8 is filled witl>a jelly-like substance, called the vitreous humor. The eye is a camera obscura, in which the retina serves as ascreen. Images of outside…
Physics
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