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小儿无晶状体眼中的钕:钇铝石榴石瞳孔成形术

Neodymium:YAG pupilloplasty in pediatric aphakia.

作者信息

Summers C G, Holland E J

机构信息

Department of Ophthalmology, University of Minnesota, Minneapolis 55455.

出版信息

J Pediatr Ophthalmol Strabismus. 1991 May-Jun;28(3):155-6. doi: 10.3928/0191-3913-19910501-09.

Abstract

An adequate pupillary aperture is required for accurate ophthalmoscopy and retinoscopy in pediatric aphakia. When pupillary miosis does not respond to pharmacologic dilation, optical iridectomy performed with a vitreous suction-cutting instrument under general anesthesia may be required. We report a 27-month-old aphakic child whose pupillary aperture was enlarged from 1 mm to 3.5 mm with neodymium (Nd):YAG pupilloplasty, following intramuscular sedation with meperidine, promethazine, and chlorpromazine. Removal of the laser chin rest and positioning of the patient on a table with adjustable height facilitated delivery of 140 applications at 2.5 to 4.3 mJ to the pupillary border. Levobunolol 0.5% controlled the transient posttreatment rise in intraocular pressure. We suggest that Nd:YAG pupilloplasty performed with sedation be considered as an alternative to intraocular surgery when pupillary miosis in pediatric aphakia does not respond to dilating agents.

摘要

小儿无晶状体眼进行准确的检眼镜检查和视网膜检影需要足够的瞳孔孔径。当瞳孔缩小对药物散瞳无反应时,可能需要在全身麻醉下用玻璃体抽吸切割器械进行光学虹膜切除术。我们报告一例27个月大的无晶状体眼患儿,在肌肉注射哌替啶、异丙嗪和氯丙嗪镇静后,用钕(Nd):YAG瞳孔成形术使瞳孔孔径从1毫米扩大到3.5毫米。移除激光下巴托并将患者置于高度可调节的手术台上,便于在瞳孔边缘以2.5至4.3毫焦的能量进行140次照射。0.5%的左布诺洛尔控制了治疗后眼压的短暂升高。我们建议,当小儿无晶状体眼的瞳孔缩小对散瞳剂无反应时,镇静下进行的Nd:YAG瞳孔成形术可被视为眼内手术的替代方法。

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