536412.fig.003a
(a)
536412.fig.003b
(b)
536412.fig.003c
(c)
536412.fig.003d
(d)
536412.fig.003e
(e)
536412.fig.003f
(f)
536412.fig.003g
(g)
Figure 3: Frequency distribution of corneal astigmatism in 0.50 D steps for the 7 age groups.