Clinical ophthalmology (Auckland, N.Z.) · 2026
Effectiveness of Trabeculectomy in Primary Open-Angle Glaucoma with Low Preoperative Intraocular Pressure.
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Katayama Hiroshi, Tojo Naoki, Toyoda Naoki, Hayashi Atsushi
Аннотация
PURPOSE: The aim of this study was to evaluate the efficacy of trabeculectomy for primary open angle glaucoma (POAG) with low preoperative intraocular pressure (IOP).
PATIENTS AND METHODS: This was a retrospective single facility, non-randomized study. We included POAG patients with preoperative IOP ≤12 mmHg who were taking maximally tolerance glaucoma medications. We enrolled 11 patients who underwent trabeculectomy and could be followed for ≥3 years. We used the value of inclination of the mean deviation (MD) slope (dB/year) as the speed of progression of visual field defects as an index of surgical efficacy. We compared the MD slope before and after trabeculectomy.
RESULTS: The mean preoperative IOP was 11.1±1.4 mmHg and the mean postoperative IOP was 6.5±2.5, 8.6±2.8 and 8.8±2.1 mmHg at 1, 2, and 3 years respectively. The inclination value of MD slope significantly improved from -1.19±0.35 to -0.13±0.37 dB/year (p<0.001). Trabeculectomy significantly decreased IOP and slowed the progression of visual field defects.
CONCLUSION: The results suggest that trabeculectomy might be effective even in patients with very low preoperative IOP.
PATIENTS AND METHODS: This was a retrospective single facility, non-randomized study. We included POAG patients with preoperative IOP ≤12 mmHg who were taking maximally tolerance glaucoma medications. We enrolled 11 patients who underwent trabeculectomy and could be followed for ≥3 years. We used the value of inclination of the mean deviation (MD) slope (dB/year) as the speed of progression of visual field defects as an index of surgical efficacy. We compared the MD slope before and after trabeculectomy.
RESULTS: The mean preoperative IOP was 11.1±1.4 mmHg and the mean postoperative IOP was 6.5±2.5, 8.6±2.8 and 8.8±2.1 mmHg at 1, 2, and 3 years respectively. The inclination value of MD slope significantly improved from -1.19±0.35 to -0.13±0.37 dB/year (p<0.001). Trabeculectomy significantly decreased IOP and slowed the progression of visual field defects.
CONCLUSION: The results suggest that trabeculectomy might be effective even in patients with very low preoperative IOP.