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. 2020 Feb 20;14:491–499. doi: 10.2147/OPTH.S242548

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© 2020 Arnold et al.

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Compared metrics of optic nerve head ultra-wide field OPTOS image derived dimensions comparing optic nerve hypoplasia with normal. From the left, horizontal optic nerve diameter, then vertical optic nerve diameter, optic nerve cross-sectional area and finally to the right ratio of macula-disc dimension divided by horizontal optic nerve diameter (M-D/DD). Optos is reported in arbitrary units.