Treatment of Phacoemulsification for Cataract and Lens-Induced Uveitis in American Cocker Spaniels

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  • 白内障と水晶体原性ぶどう膜炎のアメリカン・コッカー・スパニエルに対する超音波乳化吸引術治療
  • ハクナイショウ ト スイショウタイ ゲンセイ ブドウマクエン ノ アメリカン コッカー スパニエル ニ タイスル チョウオンパ ニュウカ キュウインジュツ チリョウ

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Abstract

Thirteen American Cocker Spaniels presented with lens-induced uveitis (LIU) and cataract resorption (CR) symptoms. Ages ranged from nine months through five years and body weights ranged from 8.5kg through 12.6kg. Twenty-three of the eyes showed cataracts. The average intraocular pressure of 18 LIU eyes was 11.2 mm Hg and nine eyes showed a reduced lens thickness, in three of which vision was restored. The percentage restoration of vision in the 12 eyes that were operated withphacoemulsification was 100% and 83.3% two and six weeks postoperation, respectively. An histopathologic examination of the anterior lens capsule showed multilayer proliferation of lens epithelial cells as convexoconcave changes on the lenssurface and swelling of lens fibrocytes, as well as actin-positive myofibroblasts. LIU should be treated when CR is progressing, and the operation should be postponed for one to two months. For LIU without CR, early operation is recommendedafter medical treatment.

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