馬匹及小馬虹膜發育不全

中文名稱馬匹及小馬虹膜發育不全
英文名稱Iris hypoplasia in horses and ponies
建立日期2007/11/01
更新日期2007/11/01
中文描述虹膜腫脹,主要位於週邊區域的中間在12點位置,並且12點和6點位置被描述於馬和小馬發生.會有單側或雙側性,並且不和視力或其他臨床問題相關.大部分,但不全都是,受影響的虹膜會是藍色.有一似團塊的虹膜帶,其向前腫脹進入前房,那時瞳孔會受到擠壓限制.腫脹消失並且當瞳孔被膨脹時,受影響的虹膜區域會有皺紋的出現.光從基底層(重新照亮)顯示稀薄特性的損傷.重新照亮並且改變形狀和大小會是對於分辨此損傷和更罕見的眼內瘤很有用的依據.治療不具指標性.這情況被圖示於Buyukmihci等人作的論文.也許是由從水樣液而造成的壓力,當瞳孔受到抑制,會導致發育不良的區域往前腫脹.
英文描述Bulges of the iris, located primarily in the middle to peripheral region at the 12 o'clock, and 12 o'clock and 6 o'clock, positions were described in horses and ponies. Can be unilateral or bilateral, and were not associated with vision or other clinical problems. Most, but not all, of the affected irides were blue. There was a mass-like zone of the iris that bulged forward into the anterior chamber when the pupil was constricted; the bulge disappeared and the affected iris region had a wrinkled appearance when the pupil was dilated. Light reflected from the fundus (retroillumination) revealed the thin nature of the lesion. Retroillumination and change in shape and size would be useful to distinguish this lesion from the more rare intraocular neoplasia. Treatment is not indicated. This condition was pictured in the article by Buyukmihci et al. Might be caused by pressure from the aqueous humor causing the hypoplastic region to bulge forward when the pupil is constricted.

疾病類型

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關鍵詞

疾病症狀

【感官系】
  • 瞳孔形狀異常或虹膜缺損
  • 眼球內腫脹, 團塊