Fig. 2
From: Corneal functional optical zone under monocular and binocular assessment
Correlation between the astigmatic power (in magnitude) in OD to OS and the monocular estimated values. Notice that the absolute astigmatism in OS was slightly smaller than in OD. However, monocular estimated values were very similar to OD, with strong positive correlation (even/direct symmetry) between OS and OD, and between OD and the monocular estimated values