Use of Ocular Response Analyzer Output Data in the Management of Low Intraocular Pressure after Glaucoma Filtration Surgery.

Q3 Medicine
Sarah Dawson, Abhijit Mohite
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引用次数: 0

Abstract

Aim: To highlight potential benefits of using Reichert's ocular response analyzer (ORA) for intraocular pressure (IOP) measurement following glaucoma filtering surgery (GFS), especially in cases of low IOP.

Background: Goldmann applanation tonometry (GAT) is widely regarded as the gold standard of IOP measurement in clinical practice. The ORA also calculates corneal biomechanics, which is used in the calculation of the cornea-compensated IOP (IOPcc).1 This useful, previously unknown information can be used to guide management in challenging clinical cases.

Case description: A 78-year-old lady underwent right trabeculectomy with mitomycin C. During the first 9 months postoperatively, IOP's when measured with GAT, were found to be low (ranging between 2 mm Hg and 5 mm Hg). The patient displayed no clinical features of hypotony and visual acuity remained stable throughout. IOP was also measured with Reichert's ORA, which gives readings for corneal hysteresis (CH), corneal resistance factor and corneal corrected IOP. IOPcc measurements obtained with ORA were consistently higher, ranging from 6.7 mm Hg to 9.3 mm Hg and were more in keeping with the clinical features of the case.

Conclusion: This case highlights the possibility that GAT can underestimate the true IOP in eyes with low IOP following GFS, as it does not account for corneal biomechanical properties.

Clinical significance: Ocular response analyzer (ORA)-measured IOPcc may be a useful adjunct in reassuring surgeons to manage postoperative numerical hypotony conservatively in the absence of any clinical signs of hypotony.

How to cite this article: Dawson S, Mohite A. Use of Ocular Response Analyzer Output Data in the Management of Low Intraocular Pressure after Glaucoma Filtration Surgery. J Curr Glaucoma Pract 2023;17(2):104-105.

Abstract Image

眼反应分析仪输出数据在青光眼滤过术后低眼压管理中的应用。
目的:强调使用Reichert的眼反应分析仪(ORA)测量青光眼滤过术后眼压(IOP)的潜在益处,特别是在低眼压的情况下。背景:Goldmann压平眼压计(GAT)被广泛认为是临床上测量眼压的金标准。ORA还计算角膜生物力学,用于计算角膜补偿IOP(IOPC)。1这些有用的、以前未知的信息可用于指导具有挑战性的临床病例的管理。病例描述:一位78岁的女士用丝裂霉素C进行了右小梁切除术。术后前9个月,用GAT测量的IOP较低(范围在2毫米汞柱至5毫米汞柱之间)。患者没有表现出低眼压的临床特征,视力始终保持稳定。还使用Reichert的ORA测量眼压,该ORA提供角膜滞后(CH)、角膜阻力因子和角膜校正眼压的读数。ORA获得的IOPcc测量值始终较高,范围从6.7毫米汞柱到9.3毫米汞柱,更符合病例的临床特征。结论:该病例强调了GAT可能低估了GFS后低眼压眼的真实眼压,因为它没有考虑角膜生物力学特性。临床意义:眼部反应分析仪(ORA)测量的IOPcc可能是一种有用的辅助手段,可以让外科医生在没有任何临床低眼压迹象的情况下,保守地管理术后数字低眼压。如何引用这篇文章:Dawson S,Mohite A.在青光眼滤过术后低眼压管理中使用眼部反应分析仪输出数据。青光眼临床杂志2023;17(2):104-105。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Current Glaucoma Practice
Journal of Current Glaucoma Practice Medicine-Ophthalmology
CiteScore
1.00
自引率
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发文量
38
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