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Figure 1: Bivariate contour ellipse area changes over followup. Bivariate contour ellipse area represents the area of an ellipse which encompasses a given proportion of fixation points (68%, 95%, and 99%). Each boxplot identifies each ellipse at different followup. In each boxplot, we draw a box from the first quartile to the third quartile. A horizontal line goes through the box at the median. The whiskers go from each quartile to the minimum or maximum. All ellipses had a similar trend over followup. An increase in dimension at 1 week, followed by a reduction at 1 month and a slow recovery to the baseline values after 3 months was recorded 
