. Medical diagnosis for the student and practitioner. 4 to 2 feeta black square of cardboard with a central white spot. While his eyes are fixed on the whitespot a black strip carrying a green or red spot or wafer at its extremity is placed quicklyat the outer side of the white. If not seen, it indicates central color scotoma. Unilateral Scotomata. Muscaevolitantes. Vary withcolor. Modifyingconditions. Extremelyimportant. Unilateral Brain tumor. Other associ-ated lesions. Often themaster key. 1228 MEDICAL DIAGNOSIS. the practitioner is the electric ophthalmoscope, s
. Medical diagnosis for the student and practitioner. 4 to 2 feeta black square of cardboard with a central white spot. While his eyes are fixed on the whitespot a black strip carrying a green or red spot or wafer at its extremity is placed quicklyat the outer side of the white. If not seen, it indicates central color scotoma. Unilateral Scotomata. Muscaevolitantes. Vary withcolor. Modifyingconditions. Extremelyimportant. Unilateral Brain tumor. Other associ-ated lesions. Often themaster key. 1228 MEDICAL DIAGNOSIS. the practitioner is the electric ophthalmoscope, simple, compact, portable,yet for illumination of the background almost automatic. Oblique Illumination.âA beam of light is focused obliquely upon thecorneal surface by an indirect examination lens, which is held 2 to 4 inchesabove and to the side of the affected eye, slightly in front of the patient; asecond lens may be used for magnification. Opacities of the cornea appearas small (nebula) or larger (leucomata), cloudy or opaque areas. Deep-seated opacities such as occur oftenest in syphilis yield a reflection, superficialareas are dull. The presence or absence of the light reflex should be noted andthe consensual reflex tested. Hippus, photophobia and the pupillary contrac-tions of accommodation and convergence,are readily noted and the pupillary out-line and its bilateral uniformity aqueous humor, iris, lens, andvitreous may be observed if the lens ismoved or the eyes of the patient turnedas becomes necessary.* Iris.â
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdiagnos, bookyear1922
