Microinvasive Glaucoma Surgery -The Lowering Effect of Intraocular Pressure on Glaucoma Patients With High Frequency Deep Sclerotomy

Glaucoma Surgery, Intraocular Pressure, Primary Open Angle Glaucoma

Primary Open Angle Glaucoma, High frequency deep sclerotomy, Abee glaucoma tip of Oertli

Highlights the high-frequency deep sclerotomy (HFDS) as a promising ab-interno surgery in primary open-angle glaucoma (POAG) patients and evaluates the efficacy and safety of the procedure.

\[Materials and Methods \] This is a single-centre, prospective, non-blinded, interventional trials designed to evaluate the therapeutic effect and safety of HFDS in POAG patients. A total of 30 subjects were recruited, all of whom were outpatients of the ophthalmology department of attending physician MeiLan Ko in the National Taiwan University Hospital Hsin-Chu Branch. The 20 subjects were all diagnosed with POAG. The surgery was performed in the surgery room of the National Taiwan University Hospital Hsin-Chu Branch. The surgery was performed using the abee® glaucoma tip of Oertli phacoemulsification machine (Cata-rhex3, Switzerland) and goniolens. During the procedure, nasal six pockets penetrating 1mm deep into the trabecular meshwork and Schlemm's canal were formed to promote aqueous humor outflow. \[Postoperative follow-up and evaluation\] The postoperative IOP and visual acuity (VA) were measured in every follow-up visit for 6 months. Postoperatively, Cravit/Lotemax drops were given to prevent inflammation and infections; besides, Pilocarpine 2% eye drops were provided to reduce IOP for postoperative medication. \[Data Statistics and Analysis\] Statistical analysis was done by IBMSPSS v21.0 statistical software (IBM Corporation, New York, USA). Data analysis was done by chi square (χ2) test, paired samples T-test and repeated ANOVA measurements with Bonferroni post hoc analysis. The results are considered statistically significant with a P value \<0.05.

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Taiwan