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Drug treatment does not lead to increased ONL thickness. Thickness of the outer nuclear layer (ONL) was measured using SD-OCT between highly reflective lines indicating the outer plexiform layer and the external limiting membrane at four locations equally spaced from the optic nerve head. These values were averaged for each eye and then averaged for each age and treatment group (n=14 for months 1-3 and n=11 for month 4). The error bars signify standard error of the mean.
