Text-book of ophthalmology . the greatest dangerfor the extremely myopic eye. They do not, like detachment, threaten the eye withcomplete blindness, but they render it unserviceable for any sort of fine work. Besides,they are much more frequent than detachment of the retina, inasmuch as only a few of theexcessively myopic attain any considerable age without being affected with these Anatomical Changes in Chorioiditis.—In exudative chorioiditis (Fig 204)there is first a cellular infiltration, which originates mainly from the innermost layersof the chorioid and spreads less toward t
Text-book of ophthalmology . the greatest dangerfor the extremely myopic eye. They do not, like detachment, threaten the eye withcomplete blindness, but they render it unserviceable for any sort of fine work. Besides,they are much more frequent than detachment of the retina, inasmuch as only a few of theexcessively myopic attain any considerable age without being affected with these Anatomical Changes in Chorioiditis.—In exudative chorioiditis (Fig 204)there is first a cellular infiltration, which originates mainly from the innermost layersof the chorioid and spreads less toward the outer layers of the chorioid than it does inthe direction of the retina. Within these two membranes, the retina and chorioid, the 464 TEXT-BOOK OF OPHTHALMOLOGY infiltration is found chiefly along the vessels, which indeed may be said to be sheathedin the cells of the exudate. An exudate, often of considerable size, is deposited betweenthe chorioid and the retina. This exudate is afterward transformed into a connective-. Fig. 204.—Recent Chorioiditic Focus. Magnified 85 X cellular infiltration lies mainly in the layer of large vessels to which the vein a belongs whilethe vein b lies in the layer of medium sized vessels. The infiltration extends backward so far as toget between the lamellae of the suprachoroid s. The pigment epithelium, e, over the focus is preservedso that the latter under the ophthalmoscope must have been indistinct and, because the leucocytesconcealed the red chorioidal vessels, must have appeared under the form of a somewhat light-coloredand not sharply defined patch.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecteye, booksubjectophth
