. Diseases of the dog and their treatment. Fig. 146.—Lobular extraction of lens. (Cadiot and Breton.) (Fig. 140). The subsequent treatment is the same as in linear extraction. Dislocation of the Lens.—This operation is undertaken in hardcataract, and is performed in the following manner: By means of a cataract needle pushed through the sclerotic mem-. FiG. 147.—Dislocation of the lens. (Cadiot and Breton.) brane, or the cornea, steady pressure was made on the upper part of thelens, and it was pushed down into the lower posterior part of the vitreouschamber of the eye. The needle is held like a
. Diseases of the dog and their treatment. Fig. 146.—Lobular extraction of lens. (Cadiot and Breton.) (Fig. 140). The subsequent treatment is the same as in linear extraction. Dislocation of the Lens.—This operation is undertaken in hardcataract, and is performed in the following manner: By means of a cataract needle pushed through the sclerotic mem-. FiG. 147.—Dislocation of the lens. (Cadiot and Breton.) brane, or the cornea, steady pressure was made on the upper part of thelens, and it was pushed down into the lower posterior part of the vitreouschamber of the eye. The needle is held like a penholder and is introducedinto the sclerotic membrane at the side of the eye about 2 to 4 mm. 422 DISEASES OF THE EYES distant from the corneal border and is pushed underneath the iris,between it and the lens to the median line, until it is visible in the the needle has reached the inner or nasal border of the pupil, theneedle is pushed back against the lens and by steady pressure the lensis dislocated from its supports and pushed backwards into the vitreoushumor. The lens must be held in position to endeavor to prevent itsreturn, but it is very apt at times to partially re-enter the pupillaryopening. DISEASES OF THE SCLEROTIC MEMBRANE, OF THE NERVOUS PORTION OF THE EYE, AND ALSO OF THE VITREOUS HUMOR. These diseases are general
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