Text-book of ophthalmology . nt of him, but a little inward (toward hisnose). For the entrance of the optic nerve does not lie at the posterior OBJECTIVE EXAMINATION OF THE EYES 95- pole of the eye, but on the nasal side of it, and hence is brought directlyopposite the observer only after a corresponding rotation of the eye-inward. It then comes into view as a bright disk, whose color is alight grayish or yellowish red, contrasting strongly with the red of therest of the fundus. The shape of the papilla is circular or oval; in thelatter case generally an erect oval (Fig. 20). Its size apparent
Text-book of ophthalmology . nt of him, but a little inward (toward hisnose). For the entrance of the optic nerve does not lie at the posterior OBJECTIVE EXAMINATION OF THE EYES 95- pole of the eye, but on the nasal side of it, and hence is brought directlyopposite the observer only after a corresponding rotation of the eye-inward. It then comes into view as a bright disk, whose color is alight grayish or yellowish red, contrasting strongly with the red of therest of the fundus. The shape of the papilla is circular or oval; in thelatter case generally an erect oval (Fig. 20). Its size apparently variesquite a good deal, which, however, is due to the varying degree of enlarge-ment under which the papilla is seen. The true size of the papilla, measuredin enucleated eyes, is, as a matter of fact, almost always the same—thatis, about mm. in On account of this constancy we use thepapilla for taking measurements in the fundus; we say, for example, that,a diseased area is 2 papilla-breadths in nasal f temporal
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecteye, booksubjectophth
