Agreement between Cirrus HD-OCT and Stratus OCT measures of RNFL thickness and TMV.

<p>Bland-Altman plots show poor agreement between Cirrus HD-OCT and Stratus OCT measures of RNFL thickness for RRMS (2a), progressive MS (2b) and healthy control (2c) eyes and suboptimal agreement between measures of TMV for RRMS (2d), progressive MS (2e) and healthy control (2f) eyes. Within each plot, the solid line indicates the mean RNFL thickness difference, while the dotted line denotes the 95% LOA. On average, Cirrus HD-OCT measured a lower RNFL thickness than Stratus OCT and the LOA were wide. On average, Cirrus HD-OCT measured a higher TMV than Stratus OCT, but with narrow LOA indicating the potential for agreement for this measurement at an individual subject level by extrapolation.