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. Author manuscript; available in PMC: 2010 Dec 1.
Published in final edited form as: Optom Vis Sci. 2009 Dec;86(12):1337–1345. doi: 10.1097/OPX.0b013e3181be9d9c

Figure 7.

Figure 7

Between-visit repeatability of modified bell retinoscopy (standardized 40 cm target estimates). (A) Between-visit repeatability for the first estimate of each day in the clinic cohort. (B) Between-visit repeatability for the second estimate of each day in the clinic cohort. Difference in lag: Day 2 estimate minus Day 1 estimate. Dashed lines: 95% limits of agreement from stratified analysis, for mean lag above and below 0.50 D; middle dotted line: bias function; outer dotted lines: linear functions describing 95% limits of agreement as a function of mean lag.