ophthalmology for veterinarians

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Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: CHAPTER IV OPERATIONS ON THE LIDS Operations on the lids are necessary to correct certain deformities, such as ectropion, entropion, trich- iasis, and ptosis. In doing operations on the lids requiring incisions of the external parts in animals the hair should be shaved from the part incised, so that it will not be caught in the wound when the sutures are applied. The same antiseptic and aseptic precautions should be used as in doing operations on other portions of the Fig. 9.—Knapp's lid clamp. (de Schweinitz, "Diseases of the Eye.") body, but the operator should be careful that strong antiseptic solutions do not enter the inner portion of the lids and injure the cornea. The lid clamp or horn spatula (Fig. 9) should be placed beneath the lid to afford more resistance and firmness when making incisions and to protect the eyeball. This should be supported and gently raised by an assistant during the operation. The illustrations of these operations are shown on the human eye, and are taken from Dr. de Schweinitz's work on "Diseases of the Eye," published by W. B. Saunders Co. Ectropion.—There are numerous operations for the correction of ectropion. One of the simplest is the Wharton Jones' operation (Figs. 10 and n). Fig. 10. Fig. n. Figs. 10, n.—Wharton Jones' operation for ectropion. (de Schweinitz, "Diseases of the Eye.") A V-shaped incision of the skin is made, the apex extending downward. The skin is undermined, and the central portion elevated, when the whole is brought together as shown in Fig. n. This allows a more lax condition of the skin of the lid, and is a good operation in ectropion following small cicatrices. Success has been attained in numerous cases by the writer by doing the Kuhnt-Szymanowski operation, whichis described as follows ...
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