By Georg Eisner
It offers me specific excitement to write down the foreword to this booklet; this is often mostly on account that i've got dedicated a considerable a part of my lifestyles to the enhance ment of the tools utilized in ophthalmic study. hardly has one in every of my scholars taken the potential for dealing systematically with the chances of those equipment. Dr. Eisner is, besides the fact that, this type of exceptions. First, he has considerably greater the indentation touch glass; secondly, he has, with untiring enthusiasm, made a scientific selection of the conventional and pathologic findings, which, with the aid of the indentation touch glass and the slit lamp, will be saw within the outermost outer edge of the fundus and the ciliary physique. He has in comparison them to findings received with mild magnification in post-mortem eyes and to histological sections. as a result of a lucky condition, W. Hess, who's either an exceptional draughts guy and a grasp of the specified exam approach, used to be capable of reproduce the visible phenomena faithfully. The reader who attempts to interpret those illustrations spatially will notice that this was once usually challenging. it's a strategy which calls for a undeniable attempt of imagi state of area, yet that's very lucrative. Dr. Eisner's monograph is an advent to a little-known department of biomicroscopy which broadens our technique of analysis and gives you additional fascinating elements for the longer term. I want him well-earned success.
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Additional info for Biomicroscopy of the Peripheral Fundus: An Atlas and Textbook
There is another type of vesicular splitting, affecting the inner retinal layers only (Fig. 51). On the base of this topography it might be related to the "reticular cystoid degeneration". There are no pillars in this type of schisis. Underneath the cavity, in the outer layer, cystoid spaces may still be present . For this form of "inner" schisis the term "retinal cyst" may be used. e. an "inner" schisis separated by a lamella from an "external" one, has not been reported. Differentiation of schisis from retinal detachment is most important in practice.
The anterior hyaloid membrane forms an anteriorly convex curve. A silhouette reflex is usually produced above the ciliary processes. The connections to the corona ciliaris are difficult to examine. In the iridolenticular space, illumination is generally so weak that no details can be recognized. For a translental observation of this part of the anterior hyaloid membrane, indentation must be so deep as to cause the ciliary body to become greatly deformed. It is pressed tightly against the anterior hyaloid membrane, which is thus stretched and folded upon the processes.
These alterations have submicroscopical dimensions and are therefore not in any way visible in the living eye. But their location may be suspected, as they presumably are present wherever the regular pattern of the vitreous cortex is disturbed. This is the case at all scars and degenerations of the inner retinal layers . Irregularities of the vitreous cortex, however, are to be expected also at the constitutional cortex holes, i. e. at the papilla, at the posterior pole, and at the vessels, all of which present no visible intravitreal alterations.