The aim the study was to describe wide-field spectral-domain optical coherence tomography morphologic relationships of the vitreous, retina, and choroid in central serous chorioretinopathy (CSCR) eyes. Standardized horizontal, vertical, and two oblique (supertemporal to inferonasal and supranasal to inferotemporal) SD-OCT sections were collected for 40 patient with CSCR. For extramacular imaging, images were obtained from eight locations: (1) nasal to the optic disk, (2) extreme nasal periphery, (3) superior to the superotemporal vascular arcade, (4) extreme superior periphery, (5) inferior to the inferotemporal vascular arcade, (6) extreme inferior periphery, (7) temporal to the macula, and (8) extreme temporal periphery. Wide-angle montage images of OCT from equator to equator were composed with a montaging software. Average subfoveal choroidal thickness was 478 ± 114 µm (range 232–695 µm) at the macular level, 367 ± 94 µm in the superior periphery, 257 ± 103 µm in the inferior periphery, 431 ± 121 and 280 ± 88 µm in the nasal and in the temporal periphery, respectively. Wide-field EDI-OCT revealed a relative thinning of the inner choroidal layer in the periphery, including the small and medium large vessels, which ranged from 86 µm nasally to 120.1 µm superiorly, with a mean of 98.8 ± 13.6 µm. Beneath the thinned inner choroidal layer, hyporeflective lumina, corresponding to the outer choroidal layer, were identified in the periphery of all eyes. The outer choroidal layer thickness ranged from 175.5 µm temporally to 235.5 µm superiorly, with a mean of 217.8 ± 41.4 µm. The novel approach of montaging SD-OCT images to examine relationships between the choroid, retina, and associated structures adjacent to and outside of the macula may have a number of relevant applications in the study of pathologic features of central serous chorioretinopathy.
Optical coherence tomography Montage scans Peripheral retina Medical retina pathologies
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