Figure 4: Scatterplots of mean keratometry, CA, CCT, and ACD in relation to age.

Panel (A) (mean keratometry versus age), Panel (B) (CA versus age) and Panel (C) (CCT versus age) show little relationship between the respective variables and age. Panel (D) illustrates a logarithmic relationship between ACD and age. D: diopters; CA: anterior corneal astigmatism; CCT: central corneal thickness; ACD: anterior chamber depth.