Evolution of Dome-shaped Macula Is Due to Differential Elongation of the Eye Predominant in the Peri-dome Region

PurposeTo determine the mechanism behind macular bulge height increase in eyes with dome-shaped macula (DSM).DesignRetrospective, observational case series.MethodsEyes presenting DSM followed up for a minimum of 1 year were examined using ocular biometry and spectral-domain optical coherence tomography at baseline end follow-up. Axial length (AL), height, central peripheral choroidal thickness (nasal, temporal, superior, inferior quadrants) reported. Eyes categorized into 2 groups comparison: “mini-DSM” group (DSM < 100 μm) “classic” > μm).ResultsFifty-eight (33 patients) studied: 32 (55%) classic 26 (45%) mini-DSM. During mean follow-up 51.76 ± 36.01 months, AL increased from 26.99 2.94 mm to 27.12 3.09 (P = .010) 235.88 282.47 μm 262.34 317.15 .001). change was significantly higher than Mean decreased nasally .008), temporally .026), inferiorly Mini-DSM exhibited shorter (26.17 vs 27.66 mm; P .027), greater visual acuity (0.169 0.437 logMAR; .002), fewer complications compared eyes.ConclusionsMacular is associated eye elongation overall thinning choroid. might result differential predominant peri-dome region. (ie, are characterized by slower evolution, better prognosis, DSM. To (DSM). Retrospective, series. μm). Fifty-eight eyes. Macular