. Medical diagnosis for the student and practitioner. Fig. 3. Thrombosis of the Central Vein{So-called Hemorrhagic Retinitis) Fig. 4. Albuminuric Retinitis From Thorington-s Ophthalmoscope and How to Use It-0 1 4 TESTS OF VISION 1223. impressions through their dendrites, the retinal rods and cones, the axons passing to the visual centers in the optic thalamus (pulvinar), corpora quad- rigemini and geniculate bodies, through the posterior portions of the internal capsule and finally, in the optic radiation, to the cuneus. The axons from the nasal sides of the retina, which represent the outer a
. Medical diagnosis for the student and practitioner. Fig. 3. Thrombosis of the Central Vein{So-called Hemorrhagic Retinitis) Fig. 4. Albuminuric Retinitis From Thorington-s Ophthalmoscope and How to Use It-0 1 4 TESTS OF VISION 1223. impressions through their dendrites, the retinal rods and cones, the axons passing to the visual centers in the optic thalamus (pulvinar), corpora quad- rigemini and geniculate bodies, through the posterior portions of the internal capsule and finally, in the optic radiation, to the cuneus. The axons from the nasal sides of the retina, which represent the outer and larger portion of the visual fields, cross and pass to the centers of the opposite side. Those of the temporal portion (inner and lesser visual field) run direct to the centers of their own side. The point of decussa-tion (chiasma), therefore, represents all fibers. Anterior to it lie the mixed fibers for therespective halves of each eye; posteriorly, thosefor the outer segment of the eye of the sameside (nasal visual field) and the inner portion ofthe opposite eye (temporal visual field). Interference with these fields causes hemi-anopsia and the variety of the hemianopsia andthe naming of the affected visual field represe
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