Ophthalmology Unit, Kasetsart University Veterinary Teaching Hospital, Bangkok, 10900, Thailand.
Exotic Clinic, Kasetsart University Veterinary Teaching Hospital, Bangkok, 10900, Thailand.
Open Vet J. 2021 Jul-Sep;11(3):441-446. doi: 10.5455/OVJ.2021.v11.i3.17. Epub 2021 Aug 25.
Cataract is a common disease in the lenses of birds. Cataract surgery is the recommended treatment for birds with visual impairment. Nevertheless, reports of the results of cataract surgery in birds are limited.
An unknown-aged male black kite () was presented to Kasetsart University Veterinary Teaching Hospital to evaluate and treat bilateral ocular cloudiness. Bilateral hypermature cataracts were diagnosed. A-scan biometry was carried out to calculate the intraocular lens' (IOL) diopter power. Bilateral cataract extraction by lens aspiration with +17.5 diopter foldable IOL implantation was successfully completed. Two months after surgery, the black kite navigated well and could fly and catch his food. Retinoscopy at 4 months postoperative revealed -0.5 diopters OD, whereas OS could not be assessed due to a poor reflection. Follow-up at 3 years after surgery, the black kite's vision remained favorable.
Phacoemulsification and IOL implantation were successful in this black kite because the black kite's vision was noticeably improved, and the black kite was able to navigate well. To the authors' knowledge, this is the first report of bilateral cataract surgery with IOL implantation using a calculated dioptric power (+17.5 D) IOL in a black kite.
白内障是鸟类晶状体的一种常见疾病。白内障手术是治疗视力障碍鸟类的推荐治疗方法。然而，鸟类白内障手术结果的报告有限。
一只不明年龄的雄性黑鸢（Milvus migrans）被带到 Kasetsart 大学兽医教学医院，以评估和治疗双眼视力模糊。诊断为双眼高度成熟性白内障。进行 A 扫描生物测量以计算人工晶状体（IOL）的屈光度。成功完成双侧晶状体抽吸联合 +17.5 屈光度折叠式 IOL 植入术。手术后 2 个月，黑鸢能够很好地导航，能够飞行和捕捉食物。术后 4 个月检影验光显示右眼 -0.5 屈光度，而左眼由于反射不良无法评估。手术后 3 年的随访显示，黑鸢的视力仍然良好。
在这只黑鸢中，超声乳化白内障吸除术联合 IOL 植入术取得了成功，因为黑鸢的视力明显改善，能够很好地导航。据作者所知，这是首例使用计算屈光度（+17.5 D）IOL 对黑鸢进行双侧白内障手术和 IOL 植入的报告。
