PMID- 38408221 OWN - NLM STAT- Publisher LR - 20240226 IS - 2325-8179 (Electronic) IS - 2325-8160 (Linking) DP - 2024 Feb 1 TI - Morphological Biomarkers Related to Visual Acuity in Patients With Radiation Retinopathy Treated With Intravitreal Ranibizumab. PG - 1-8 LID - 10.3928/23258160-20240129-01 [doi] AB - BACKGROUND AND OBJECTIVE: Our objective was to monitor variables via spectral-domain optical coherence tomography (SD-OCT) and identify the most relevant biomarkers related to best-corrected visual acuity (BCVA) in radiation retinopathy (RR). PATIENTS AND METHODS: A post-hoc analysis of the two-year Ranibizumab for Radiation Retinopathy (RRR) trial analyzed vision and OCT parameters including intraretinal fluid, ellipsoid zone (EZ) disruption, retinal pigment epithelium atrophy, hard exudates, retinal hemorrhage, retinal neovascularization, and subfoveal fluid. BCVA and SD-OCT parameters were evaluated by univariate analysis and a mixed-effects model. RESULTS: Forty eyes from the RRR trial were included. Intraretinal cyst vertical size (week 24: P = 0.032; week 48: P = 0.021), neovascularization (week 48: P = 0.028; week 72: P = 0.025), and EZ disruption (week 72: P = 0.029; week 104: P = 0.019) were the clinical parameters most relevant to BCVA by univariate analysis in at least two time points. The mixed-effects model confirmed the relevance of intraretinal cyst vertical size (P = 0.001) and neovascularization (P = 0.001) but not EZ disruption (P = 0.119) over the course of the study. CONCLUSIONS: This study characterizes the course of visual loss in RR by identifying intraretinal cyst vertical size, neovascularization, and EZ disruption as biomarkers of poor BCVA over a span of two years. Larger multicenter studies are needed to confirm these findings. [Ophthalmic Surg Lasers Imaging Retina 2024;55:XX-XX.]. FAU - Corona, Stephanie Trejo AU - Corona ST FAU - Ali, Omar I AU - Ali OI FAU - Yu, Hannah J AU - Yu HJ FAU - Schefler, Amy C AU - Schefler AC CN - RRR Study Group LA - eng PT - Journal Article DEP - 20240201 PL - United States TA - Ophthalmic Surg Lasers Imaging Retina JT - Ophthalmic surgery, lasers & imaging retina JID - 101599215 SB - IM EDAT- 2024/02/26 18:42 MHDA- 2024/02/26 18:42 CRDT- 2024/02/26 15:12 PHST- 2024/02/26 18:42 [medline] PHST- 2024/02/26 18:42 [pubmed] PHST- 2024/02/26 15:12 [entrez] AID - 10.3928/23258160-20240129-01 [doi] PST - aheadofprint SO - Ophthalmic Surg Lasers Imaging Retina. 2024 Feb 1:1-8. doi: 10.3928/23258160-20240129-01.