Both initial and deferred PDT combined with IVR to treat polypoidal choroidal vasculopathy show the similar visual and anatomical improvements at 12 months. Initial PDT combination leads to significantly fewer additional treatments.

PurposeTo compare optical coherence tomographic angiography (OCTA) and indocyanine green angiography (ICGA) images for detecting polypoidal lesions (PLs) and branching vascular networks (BVNs), and to measure the polypoidal areas (PAs) in patients with polypoidal choroidal vasculopathy (PCV).MethodsAll patients underwent ICGA, optical coherence tomography (OCT), and OCTA. We compared the detection sensitivity for PL and BVN, as evaluated by the ICGA and OCTA images. Furthermore, PA measured by ICGA was divided into two groups: one in which the area could be measured by OCTA (ICGAOCTA) and the other in which the area could not be measured by OCTA (ICGAOCTA).ResultsTwenty-one consecutive eyes of 21 patients (mean age, 73.8±9.8 years) were included. ICGA detected PL in all eyes (100%), whereas OCTA detected PL in 16 eyes (75.2%); ICGA detected BVN in 15 eyes (71.4%), whereas OCTA detected BVN in 20 eyes (95.2%). The mean PA in ICGAOCTA and ICGAOCTA was 0.24±0.04 and 0.14±0.01 mm, respectively; a significant difference was observed between ICGAOCTA PA and ICGAOCTA PA (P<0.0001). In addition, the mean PA in the ICGAOCTA group measured by ICGA and OCTA was 0.24±0.04 was 0.19±0.04 mm, respectively; these values were significantly different (P=0.0046).ConclusionsOCTA might detect more BVNs and fewer PLs compared with ICGA, and PL detected by OCTA might be smaller than those detected by ICGA.

Dear Editor, We report short-term data on the development of intraocular inflammation (IOI) after intravitreal brolucizumab injection for exudative age-related macular degeneration (AMD) in Japanese patients in this letter. Brolucizumab (Novartis Pharma AG, Basel, Switzerland), a new anti-vascular endothelial growth factor (VEGF) agent for the treatment of exudative AMD, differs from previous anti-VEGF agents by its smaller molecular weight allowing administration at high concentrations and presumably improved tissue penetration. In the HAWK and HARRIER studies, brolucizumab was reportedly non-inferior to aflibercept in terms of visual outcomes and more effective in reducing intraretinal and subretinal fluid [1]. Early US reports regarding the adverse effect of IOI [2] prompted a Novartis-appointed Safety Review Committee (SRC) to re-evaluate data from the clinical trials [3]. At the 2020 Annual Meeting of the American Academy of Ophthalmology, Heier et al. [4] described SRC findings suggesting that female gender and Japanese ethnicity were risk factors.

PurposeTo evaluate the long-term efficacy and factors involved in the recurrence and persistence of subretinal fluid (SRF) after half-dose photodynamic therapy (PDT) for chronic central serous chorioretinopathy (CSC). MethodsIn this retrospective observational case series, 79 eyes (73 patients) with chronic CSC were treated with half-dose PDT and followed up for at least 3 years. They were divided into successful (64 eyes) and unsuccessful (15 eyes) groups based on SRF absorption and disease recurrence after one PDT session. Age, best-corrected visual acuity (BCVA), central foveal thickness, neuroretinal thickness, height of SRF, subfoveal choroidal thickness, window defect area detected by fluorescein angiography, and PDT spot area were compared between the groups. Factors associated with PDT success and BCVA at 3 years were investigated. ResultsLogMAR BCVA improved from 0.21±0.24 to 0.08±0.16 (P<0.001) at 3 years after PDT. Compared with the unsuccessful group, the successful group had a significantly younger mean age (50.5±9.7 vs. 56.5±9.1 years, P = 0.032) and better baseline BCVA (0.18±0.23 vs. 0.32±0.25, P = 0.034). Other parameters were not significantly different. Multivariate analyses showed that unsuccessful PDT was significantly associated with lower baseline BCVA (P = 0.026) and older age (P = 0.029) and that BCVA at 3 years after PDT was positively associated with baseline BCVA (P<0.001). ConclusionsHalf-dose PDT has a long-term efficacy in chronic CSC. Relatively early PDT may improve anatomic and functional outcomes of chronic CSC.

Our results showed that vitreous temperatures vary during different vitrectomy procedures.