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Short-term results of microhook trabeculotomy Yoshiaki Chiku 1 , Shinji Kakihara 1 , Akira Imai 1 , Taihei Kurenuma 1 , Masumi Wakabayashi 1 , Sayuri Shu 1 , Toshinori Murata 1 1Department of Ophthalmology, Shinshu University, School of Medicine pp.365-369
Published Date 2021/3/15
DOI https://doi.org/10.11477/mf.1410213939
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Abstract Purpose:To evaluate the short-term postoperative results and complications of microhook trabeculotomy(μLOT)surgery.

Subjects and Method:This retrospective study included 89 eyes of 76 patients who had undergone μLOT as the first glaucoma surgery from January to December 2019, and had been followed-up for more than 3 months. The mean age at the time of μLOT was 68.5±12.0 years. The types of glaucoma included primary open-angle glaucoma(32 eyes), primary angle-closure glaucoma(16 eyes), exfoliative glaucoma(17 eyes), and other secondary glaucoma(24 eyes). Of these, 61 eyes underwent μLOT with simultaneous cataract surgery. The preoperative and postoperative intraocular pressure(IOP), medication score, and complications were evaluated.

Results:The IOP(mean±standard deviation)significantly decreased from 18.5±7.0 mmHg at baseline to 11.5±3.9, 10.7±3.3, and 11.2±4.4 mmHg at the 1-, 3-, and 6-month follow-ups, respectively(p<0.0001, Dunnett's test). The medication score significantly decreased from 4.1±1.4 at baseline to 3.4±1.3, 3.3±1.2, and 3.2±1.0 at the 1-, 3-, and 6-month follow-ups, respectively(p<0.05, Dunn's multiple comparison test). Postoperative complications included transient ocular hypertension(>30 mmHg)within 1 week after surgery(7 eyes, 7.9%), and prolonged hyphema(2 eyes, 2.2%). One eye with hyphema required trabeculectomy because of ocular hypertension after irrigation of the anterior chamber. The other hyphema required pars plana vitrectomy to improve visual acuity owing to the spread of anterior chamber bleeding to the vitreous cavity.

Conclusion:μLOT surgery significantly reduced postoperative IOP and medication scores. The incidence of severe postoperative complications was low.


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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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