PMID- 38227763 OWN - NLM STAT- Publisher LR - 20240117 IS - 1536-5166 (Electronic) IS - 1070-8022 (Linking) DP - 2024 Jan 16 TI - Optic Disc Hypoplasia Assessment in PAX6 -Related Aniridia. LID - 10.1097/WNO.0000000000002083 [doi] AB - BACKGROUND: This study aims to characterize optic disc hypoplasia in congenital aniridia using ultra-wide-field imaging (UWFI) and nonmydriatic retinal photography (NMRP). We also investigated the relation between optic disc hypoplasia and foveal hypoplasia. METHODS: This is a retrospective case series of patients diagnosed with PAX6 -related aniridia in a National Referral Center, who underwent UWFI, NMRP, and spectral-domain optical coherence tomography (SD-OCT) . The disc diameter (DD) and the disc-to-fovea distance (DF) were measured. The DD:DF ratio was used to assess the relative size of the optic disc. The analyses were carried with respect to paired age- and sex-matched healthy controls. SD-OCT was used for foveal hypoplasia grading (from 1 to 4) and retinal nerve fiber layer (RNFL) analysis. RESULTS: Mean manual DD:DF ratio was 0.33 (95% CI: 0.31-0.35) in aniridia patients versus 0.37 (95% CI: 0.36-0.39) in control patients (n = 20, P = 0.005) measured on NMRP and 0.32 (95% CI: 0.30-0.35) in aniridia patients versus 0.37 (95% CI: 0.37-0.39) in control patients (n = 26, P < 0.0001) when assessed on UWFI. Mean semiautomated DD:DF ratio measured on UWFI in aniridia patients was 0.31 (95% CI: 0.29-0.33) versus 0.37 (95% CI: 0.36-0.38) in control patients ( P < 0.0001). Also, a negative correlation was found significant between the grade of foveal hypoplasia and the mean semiautomated DD:DF ratio (r = -0.52, 95% CI: -0.76 to -0.15, P = 0.0067). Finally, a significant negative correlation was found between the peripapillary temporal RNFL thickness and the grade of foveal hypoplasia ( P = 0.0034). CONCLUSIONS: The DD:DF ratio is significantly reduced in PAX6 -related aniridia patients and correlates with the severity of foveal hypoplasia. This ratio is a valuable tool for optic disc hypoplasia assessment in congenital aniridia, especially when provided semiautomatically by UWFI. CI - Copyright (c) 2024 by North American Neuro-Ophthalmology Society. FAU - Dentel, Alexandre AU - Dentel A AUID- ORCID: 0000-0003-2518-8380 AD - Ophthalmology Department (Alexandre Dentel, MBM, MPR, DB-G, Alejandra Daruich), Necker-Enfants Malades University Hospital, AP-HP, Paris Cite University, Paris, France; Borelli Centre (MPR), UMR 9010, CNRS-SSA-ENS Paris Saclay-Paris Cite University, Paris, France; INSERM (SV, DB-G, Alejandra Daruich), UMRS1138, Team 17, From Physiopathology of Ocular Diseases to Clinical Development, Paris Cite University, Centre de Recherche des Cordeliers, Paris, France; and Medecine Genomic Department of Systemic and Organ Diseases (SV), Cochin Hospital, APHP, Paris Cite University, Paris, France. FAU - Madani, Mohammed B AU - Madani MB FAU - Robert, Matthieu P AU - Robert MP FAU - Valleix, Sophie AU - Valleix S FAU - Bremond-Gignac, Dominique AU - Bremond-Gignac D FAU - Daruich, Alejandra AU - Daruich A LA - eng PT - Journal Article DEP - 20240116 PL - United States TA - J Neuroophthalmol JT - Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society JID - 9431308 SB - IM COIS- The authors report no conflicts of interest. EDAT- 2024/01/16 18:42 MHDA- 2024/01/16 18:42 CRDT- 2024/01/16 14:23 PHST- 2024/01/16 18:42 [pubmed] PHST- 2024/01/16 18:42 [medline] PHST- 2024/01/16 14:23 [entrez] AID - 00041327-990000000-00553 [pii] AID - 10.1097/WNO.0000000000002083 [doi] PST - aheadofprint SO - J Neuroophthalmol. 2024 Jan 16. doi: 10.1097/WNO.0000000000002083.