. A treatise on diseases of the eye . Placidos disk. .Jacksons binocular magnifier. Minute Examination.—For the more minute examination of the corneaa lens or lens system may be emj)loyed. Jacksons binocular mag-niher (Fig. 8b) and the compound corneal microscope of Czapski areexcellent instruments for this purpose. Oblique Illumination {Focal Illuminatioii).—This is a very valuablemethod of examining the anterior segment of the globe, as well as of the CORNEA 117 cornea. The patient is placed in a darkened room in which there isa single sonrce of light—an argand hnrner or some similar lamj).
. A treatise on diseases of the eye . Placidos disk. .Jacksons binocular magnifier. Minute Examination.—For the more minute examination of the corneaa lens or lens system may be emj)loyed. Jacksons binocular mag-niher (Fig. 8b) and the compound corneal microscope of Czapski areexcellent instruments for this purpose. Oblique Illumination {Focal Illuminatioii).—This is a very valuablemethod of examining the anterior segment of the globe, as well as of the CORNEA 117 cornea. The patient is placed in a darkened room in which there isa single sonrce of light—an argand hnrner or some similar lamj). Thelight should be placed about three feet from the patient, at an angle of35 degrees in front of the plane of the patients face. A lens of twoto three inches focal distance is interposed between the st)urce of lightand the eye, and the light focused on the part to be examined, theobserver standing directly in front of the patient. The strong contrastbetween the illuminated and the non-illuminated parts enables theobserver to d
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecteyediseases, bookyear
