The commoner diseases of the eye : how to detect and how to treat them . Placidos Disk for Examining the Cornea. the window on the cornea (conical reflex), anyirregularity of its surface, as from an ulcer orforeign body, will be readily observed. Deep METHODICAL EXAMINATION OF THE EYE 31 scars resulting from old inflammations or ulcerswill also cause a distortion of the image as re-flected on the corneal surface. Placidos disc,which consists of alternate black and white cir-cles having a hole at the center, may also beemployed for detecting corneal inequalities. Thepatient is placed with his b
The commoner diseases of the eye : how to detect and how to treat them . Placidos Disk for Examining the Cornea. the window on the cornea (conical reflex), anyirregularity of its surface, as from an ulcer orforeign body, will be readily observed. Deep METHODICAL EXAMINATION OF THE EYE 31 scars resulting from old inflammations or ulcerswill also cause a distortion of the image as re-flected on the corneal surface. Placidos disc,which consists of alternate black and white cir-cles having a hole at the center, may also beemployed for detecting corneal inequalities. Thepatient is placed with his back to the windowand the observer looks through the small holein the center of the disc, at the same time re-.
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Keywords: ., bookcentury1900, bookdecade1900, bookidcommonerdise, bookyear1904
