Topographical variation of macular choroidal thickness with myopia

Acta Ophthalmologica
Kwanghyun LeeTaekJune Lee

Abstract

To study the association between topographical variation of choroidal thickness and myopic features in healthy eyes, using spectral domain optical coherence tomography (OCT). Choroidal thickness was measured at the foveal centre (CTF) and 1.5 mm superiorly (CTS), inferiorly (CTI), nasally (CTN) and temporally (CTT) from the foveal centre, using enhanced depth imaging OCT. The temporal width of β zone of peripapillary atrophy (βPPA) was measured on infrared fundus images. The ratio of βPPA width to vertical disc diameter (PVDR) was calculated to correct retinal magnification. This study includes 85 eyes from 85 subjects who had a mean age of 53.9 ± 12.9 years, a mean axial length of 23.56 ± 0.82 mm, a mean refractive error of -0.14 ± 1.80 D, a mean βPPA width of 218.6 ± 181.3 μm and a mean PVDR of 0.13 ± 0.11. The CTF was thickest (266.4 ± 81.6), followed by CTS (256.2 ± 82.5 μm), CTT (251.7 ± 68.4 μm), CTI (247.7 ± 90.3 μm) and CTN (211.0 ± 76.5 μm). There were 31 eyes (36.5%) with CTT thicker than CTF. The CTT/CTF negatively correlated with refractive error (p = 0.012) and positively correlated with axial length (p = 0.031), βPPA width (p = 0.003) and PVDR (p = 0.006). There was a correlation between a thickened choroid, tempo...Continue Reading

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Citations

Jan 16, 2016·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Debora L Nickla, Kristen Totonelly
Jun 12, 2016·Acta Ophthalmologica·Kyoung Min LeeTae-Woo Kim
Sep 3, 2016·The British Journal of Ophthalmology·Andrea GovettoJean Pierre Hubschman
Jan 24, 2019·Indian Journal of Ophthalmology·Amber A BhayanaAtul Kumar
Dec 24, 2015·Acta Ophthalmologica·Kai Xiong Cheong, Colin S Tan
Dec 20, 2018·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Scott A ReadDavid Alonso-Caneiro

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