Journal
AMERICAN JOURNAL OF OPHTHALMOLOGY
Volume 205, Issue -, Pages 1-10Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ajo.2019.03.025
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Funding
- MACULAFONDS
- RETINA Netherlands
- BlindenPenning
- Landelijke Stichting voor Blinden en Slechtzienden through UitZicht (Ede, the Netherlands)
- Rotterdamse Stichting Blindenbelangen (Rotterdam, the Netherlands)
- Haagse Stichting Blindenhulp (The Hague, the Netherlands)
- ZonMw VENI Grant (The Hague, the Netherlands)
- Gisela Thier Fellowship of Leiden University (Leiden, the Netherlands)
- Oxford NIHR Biomedical Research Centre (Oxford, United Kingdom)
- Novartis Pharma the Netherlands B.V. (Arnhem, the Netherlands)
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PURPOSE: To compare the outcome between high-density subthreshold micropulse laser (HSML) treatment and half-dose photodynamic therapy (PDT) in chronic central serous chorioretinopathy (cCSC) patients, subdivided based on either focal or diffuse leakage on fluorescein angiography (FA). DESIGN: Retrospective analysis of multicenter randomized controlled trial data. METHODS: Patients were treated with either half-dose PDT or HSML (both indocyanine green angiography-guided) and categorized in 2 groups, based on focal or diffuse leakage on FA. Clinical outcomes were evaluated at baseline and during follow-up. RESULTS: In the focal leakage group (63 patients), both at first evaluation and at final visit, more PDT-treated than HSML-treated patients demonstrated a resolution of subretinal fluid (evaluation visit 1: 57% in the PDT group and 17% in the HSML group, P = .007; final visit: 75% and 38%, P = .012). In the diffuse leakage group (93 patients), both at first evaluation and at final visit, more PDT-treated than HSML-treated patients showed a resolution of subretinal fluid (evaluation visit: 1:48% in the PDT group and 16% in the HSML group, P = .002; final visit: 67% and 21%, P = .002). PDT-treated patients in the focal and diffuse leakage group had a higher retinal sensitivity increase, comparing baseline and final visit (+3.1 +/- 3.1 dB vs +1.2 +/- 4.0 dB, P = .048, and +2.7 +/- 3.3 dB vs +1.0 +/- 3.8 dB, P = .036, respectively). Only in the diffuse leakage group, the increase in ETDRS letters was higher in the PDT-treated group when comparing baseline and first evaluation visit (+4.4 +/- 6.1 vs +0.9 +/- 10.0, P = .049). CONCLUSIONS: Half-dose PDT is superior to HSML treatment in cCSC patients, regardless of the presence of focal or diffuse leakage on FA. ((C) 2019 Elsevier Inc. All rights reserved.)
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