PURPOSE We examined whether a contact lens sensor (CLS) is useful for the postoperative evaluation of trabectome surgery. We investigated the correlations between the outcomes of trabectome surgery and the output of a CLS. METHODS We examined 24 consecutive eyes of patients with pseudo-exfoliation glaucoma. In each eye, the intraocular pressure (IOP) fluctuations over 24 h were measured with the SENSIMED Triggerfish CLS before and at 3 months after the trabectome surgery. We divided the patients into success (n = 12 eyes) and failure (n = 12 eyes) groups; success was defined as a postoperative IOP level ≤ 21 mmHg plus an IOP reduction ≥ 20% relative to the preoperative IOP value with or without anti-glaucoma medications. We investigated CLS parameters that correlate with surgical outcomes by performing a Cox hazard regression analysis. We determined the maximum value, minimum value, and range of IOP fluctuation as CLS parameters. RESULTS The mean follow-up period was 38.0 ± 3.0 months. The success rate was 50%. The postoperative range of IOP fluctuation during the nocturnal period with the CLS was significantly correlated with the surgical results (p = 0.024). CONCLUSIONS A smaller range of IOP fluctuation was significantly correlated with better surgical outcomes. We were able to predict the surgical success after trabectome surgery at 3 months using the CLS. Thus, CLS results could be a new surgical evaluation parameter.

中文翻译：

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角膜接触镜传感器可以预测截肢手术的成功吗？

目的我们检查了隐形眼镜传感器（CLS）是否可用于对手术切除的术后评估。我们调查了行截肢手术的结果和CLS的输出之间的相关性。方法我们检查了24名假脱落性青光眼患者的连续眼睛。每只眼睛在切线术手术前后和术后3个月用SENSIMED Triggerfish CLS测量24小时内的眼压（IOP）波动。我们将患者分为成功组（n = 12眼）和失败组（n = 12眼）。成功的定义是相对于术前IOP值≤21 mmHg加上术后IOP降低≥20％（无论是否使用抗青光眼药物）。我们通过进行Cox风险回归分析研究了与手术结果相关的CLS参数。我们将IOP波动的最大值，最小值和范围确定为CLS参数。结果平均随访时间为38.0±3.0个月。成功率为50％。夜间CLS时IOP的术后波动范围与手术结果显着相关（p = 0.024）。结论较小的眼压波动范围与手术效果更好相关。使用CLS，我们能够预测在3个月的行截骨手术后的手术成功率。因此，CLS结果可能是一个新的手术评估参数。夜间CLS引起的IOP波动的术后范围与手术结果显着相关（p = 0.024）。结论较小的眼压波动范围与手术效果更好相关。使用CLS，我们能够预测在3个月的行截骨手术后的手术成功率。因此，CLS结果可能是一个新的手术评估参数。夜间CLS引起的IOP波动的术后范围与手术结果显着相关（p = 0.024）。结论较小的眼压波动范围与手术效果更好相关。使用CLS，我们能够预测在3个月的行截骨手术后的手术成功率。因此，CLS结果可能是一个新的手术评估参数。