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KMID : 0360220200610091072
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Journal of the Korean Ophthalmological Society
2020 Volume.61 No. 9 p.1072 ~ p.1078
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Short-term Efficacy and Safety of Micropulse Transscleral Cyclophotocoagulation in Korean Patients
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Kim Jong-Hwa
Sung Mi-Sun
Park Sang-Woo
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Abstract
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Purpose: To evaluate the short-term efficacy and safety of a standardized micropulse transscleral diode laser cyclophotocoagulation (micropulse TS-CPC) procedure in Korean glaucoma patients.
Methods: In this retrospective study, the medical records of 19 eyes of 19 patients who were diagnosed with glaucoma, underwent micropulse TS-CPC and were followed for at least 3 months were reviewed. Visual acuity (VA), intraocular pressure (IOP), the number of IOP-lowering eye drops, and the success rate, defined as the percentage of eyes achieving an IOP of 6-21 mmHg with or without medication, or an IOP decrease of ≥20% compared to baseline after the procedure, were evaluated at baseline, 1 week, 1 month and 3 months postoperatively.
Results: The mean age was 58.0 years at the time of treatment. Among 19 eyes that were evaluated, two had a previous history of trabeculectomy, two had an Ahmed® Glaucoma Valve implantation, one had selective laser trabeculoplasty, and four had vitrectomy. Baseline mean IOP was 26.21 ± 5.22 mmHg, which significantly decreased to 17.72 ± 4.25 mmHg at postoperative 3 months (p < 0.001). The success rate at postoperative 3 months was 84.2%. Five eyes experienced postoperative hypotony, and persistent corneal epithelial defects in three eyes were successfully treated with topical medication. Two of 19 eyes had a decrease in VA of unknown cause, and 9 eyes had mydriasis due to paralysis in iris constriction, which did not resolve until 3 months follow-up.
Conclusions: Micropulse TS-CPC had a relatively good IOP-lowering effect. However, a rather high proportion of patients had complications from a standardized protocol, and this should be considered when performing micropulse TS-CPC in Korean patients.
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KEYWORD
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Cyclophotocoagulation, Glaucoma, Laser therapy, Micropulse
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