Abstract
Aims/Purpose: To characterize the hyperreflective material (HRM) change over 9‐month follow‐up in treatment‐naïve neovascular age‐related macular degeneration (nAMD) eyes who underwent antiangiogenic treatment.Methods: Spectral‐domain optical coherence tomography images of 207 study eyes enrolled in AVENUE trial were included to analyse HRM features including location, evolvement and boundaries. We looked for the development of a highly hyperreflective band with continuity to the adjacent unaffected retinal pigment epithelium on the inner aspect of persistent HRM, which we termed complete HRM‐BR, if more than 90% of HRM was covered by this feature. Other HRM evolution patterns included complete resolution of subretinal HRM (SHRM) and partial/no remodelling of persistent SHRM. We analysed associations of HRM morphological patterns with vision and intralesional hypertransmission into the choroid (HTC), a proxy for HRM‐associated macular atrophy, at Month 9. Predictive features for complete HRM‐BR were explored.Results: At Month 9, persistent SHRM was present in 57% of the 207 included eyes. Of these, complete HRM‐BR developed in 44.9%, which was associated with greater visual outcome (+4.2 letters vs. −6.1 letter) and less intralesional HTC (20.8% vs. 69.2%) compared to partial/no HRM‐BR at Month 9. These eyes with complete HRM‐BR had similar visual outcome and intralesional HTC development to eyes with resolved SHRM (+2.2 letters; 26.8%). Presence of intralesional HTC (baseline OR 0.06, month 1 OR 0.18, p ≤ 0.01) was associated with lower odds of complete HRM‐BR development by month 9.Conclusions: In nAMD eyes undergoing antiangiogenic therapy, complete HRM‐BR developed frequently when SHRM persisted. It was associated with better visual outcome and less MA compared to eyes with partial/no HRM‐BR, and with similar outcomes compared to those with resolved SHRM. This morphological pattern can be predicted at an early stage by RPE‐related HRM features.
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