This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1849 edition. Excerpt: ...instrument has penetrated the lens; or with the anterior edge, if the needle has reached the vitreous humor. To make quite sure, each of these movements may be performed alternately. Whilst pressure is effected from behind forwards on the posterior part of the capsule, in order to incise it, the lens may be ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1849 edition. Excerpt: ...instrument has penetrated the lens; or with the anterior edge, if the needle has reached the vitreous humor. To make quite sure, each of these movements may be performed alternately. Whilst pressure is effected from behind forwards on the posterior part of the capsule, in order to incise it, the lens may be seen pushed a little forward towards the pupil; but there is no harm in this, as the anterior part of the capsule is still intact. When the incision is made, I rotate the needle, so as to make one flat surface of it look forwards and the other backwards; and using the point of introduction as a centre, I give the needle a movement of circurnduction, which brings it over the superior border of the lens down under the anterior aspect of the cataract. When the instrument has reached this point, the anterior part of the capsule may be torn or displaced; or this laceration may be postponed until after the couching of the lens. Whether the one or the other of these modes of proceeding be adopted, there is no difficulty in pressing the lens through the posterior aperture in the capsule; but if the cataract be soft, there would perhaps be some advantage in refraining from opening the anterior part of the capsule before displacing the lens. If the lens should have been displaced before the anterior half of the capsule be torn, the operation should always be terminated by effecting this laceration; and if this cannot be clone in acting upon the whole of this anterior capsule, it should be divided into shreds, and the latter disseminated in all directions. When 1 wish to displace a hard cataract altogether, I press directly from before backwards on the central part of the lens, in bringing the handle of the instrument forwards, taking care neither to...
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Add this copy of Boston Medical and Surgical Journal, Volume 39 to cart. $72.08, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2011 by Nabu Press.
