Micropulse laser trabeculoplasty on pseuodexfoliation glaucoma patients under topical prostaglandin analogue monotherapy: 1-year results
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To evaluate the effectiveness of a single session of micropulse laser trabeculoplasty (MLT) to lower intraocular pressure (IOP) in patients with pseudoexfoliation glaucoma (PEXG).
In this single-center, one-arm, prospective study patients with PEXG under prostaglandine analogue monotherapy with inadequate IOP control were treated with 360° 532-nm MLT. Patients were evaluated at 1 day, 1 month, 3 months, 6 months, and 12 months post-MLT while they were treated with the same drug regimen as pre-MLT. Mean IOP reduction and percentage of IOP change during the follow-up were calculated. Cases that required any further intervention, like additional hypotensive medication, laser or surgical therapy, throughout the study period were considered failures and removed from the study.
Twenty-seven eyes (27 patients, 17 male) were included in the study. The age of the patients was 72.37 ± 6.29 years and the baseline IOP was 20.41 ± 1.87 mmHg. Treatment with MLT resulted in significantly lower IOP at 1, 3, 6, and 12 months after MLT compared to baseline (p < 0.0001 for all comparisons). By the end of the study, 52.17% of the PEXG eyes demonstrated a ≥ 20% IOP reduction compared to baseline. Four eyes (14.81%) did not respond to MLT (three eyes at 3 months and one eye at 6 months after trabeculoplasty) and were considered failures since they required additional intervention.
Micropulse laser trabeculoplasty appears to be an effective method to lower IOP in patients with PEXG up to 12 month of follow-up period.
The study is registered on www.ClinicalTrials.gov with registration number NCT03483402.
KeywordsIntraocular pressure Pseudoexfoliation glaucoma Micropulse laser Trabeculoplasty
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee (the Institutional Review Board of the University Hospital of Patras) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Informed consent was obtained from all individual participants included in the study.
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