Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Texas A&M University, College Station, TX 77843-4474, USA.
Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine, Texas A&M University, College Station, TX 77843-4474, USA.
J Avian Med Surg. 2020 Dec;34(4):396-401. doi: 10.1647/1082-6742-34.4.396.
A 25-year-old, male, sanctuary-owned, South African ostrich () was evaluated for orbital emphysema after evisceration of a nonvisual and chronically irritated eye. On initial ophthalmic examination, the ostrich's left eye displayed severe corneal fibrosis, broad anterior synechia, and a shallow anterior chamber, all suggestive of a previous corneal perforation. Conjunctival hyperemia and eyelid crusts were also present, reportedly associated with chronic rubbing. Evisceration of the left eye was performed by excising the eyelid margins, conjunctiva, nictitans, cornea, and intraocular contents. Four weeks postoperatively, a nonpainful, fluctuant swelling of the surgical site was noted. Trocarization of the surgical site verified orbital emphysema and served to temporarily decompress the orbit. Orbital emphysema reoccurred within 48 hours but gradually regressed without intervention over the subsequent 9 months. A Jones test was performed in the healthy, right eye and demonstrated clear communication to the oropharynx. To our knowledge, this is the first reported case of an evisceration performed on an ostrich and the first reported case of orbital emphysema in any avian species. It is probable that the emphysema noted in this case was secondary to nasolacrimal duct-oropharynx communication.
一只 25 岁、雄性、圈养的南非鸵鸟，因非可视且慢性刺激的眼睛进行内容剜除术后出现眶内积气而接受评估。初次眼部检查显示，鸵鸟的左眼存在严重的角膜纤维化、广泛的前粘连和浅前房，所有这些都提示先前发生过角膜穿孔。结膜充血和眼睑结痂也存在，据报道与慢性摩擦有关。左眼的内容剜除术通过切除眼睑边缘、结膜、瞬膜、角膜和眼内容物来完成。术后 4 周，手术部位出现无痛性、波动性肿胀。在手术部位进行穿刺证实了眶内积气，并暂时使眼眶减压。48 小时内眶内积气再次出现，但在随后的 9 个月内未经干预逐渐消退。对健康的右眼进行了 Jones 测试，结果显示与咽腔有明确的连通。据我们所知，这是首例报道的鸵鸟内容剜除术病例，也是首例报道的任何禽类眶内积气病例。该病例中观察到的气肿很可能继发于鼻泪管-咽腔连通。
