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Published on: August 25, 2023
The long-term outcome of trabeculotomy: comparison with filtering surgery in Japan
Wenjun Bao1, Kazuhide Kawase2, Hailong Huang2
1Department of Ophthalmology, Gifu University Graduate School of Medicine, Gifu, 501-1194, Japan. baowenjunjy@yahoo.co.jp.
Background:
To investigate the long-term outcome of trabeculotomy and to compare it with that of trabeculectomy.
Methods:
We retrospectively reviewed the medical records of patients who had undergone standalone trabeculotomy. Inclusion criteria included a follow-up period of at least 6 years, availability of reliable static visual field results, etc. Age- and preoperative intraocular pressure -matched trabeculectomy cases served as controls. A Kaplan-Meier analysis was employed as a measure of surgical success. Additional clinical factors were also analyzed.
Results:
Twenty-five eyes of 25 trabeculotomy patients and 20 eyes of 20 trabeculectomy patients with a mean postoperative follow-up period of 8.0 years were selected. The Kaplan-Meier analysis estimated that the success probability defined as intraocular pressure < 16 mmHg was 44.0 ± 9.9% and 75.0 ± 9.7% at 6 years for trabeculotomy and trabeculectomy, respectively. The final mean deviation significantly progressed in trabeculotomy cases in Central 30-2 programs of the Humphrey Field Analyzer (P = 0.025). Patient characteristics and postoperative clinical data were analyzed by Mann-Whitney's U test and Wilcoxon signed-rank test.
Conclusions:
While trabeculotomy was inferior to trabeculectomy in terms of intraocular pressure control and visual field stability in our series, surgical indications should always be determined on an individual basis, pending further research.
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