Table 5.

Annual reductions in anterior segment parameters according to the age of subjects.

Age-group, years	ACV		ACD		ACW-H		ACW-V		LV		PD
	mm3/year	%	mm/year	%	mm/year	%	mm/year	%	mm/year	%	mm/year	%
21–30	−0.887	0.45	−0.019	0.45	−0.003	0.02	−0.005	0.04	0.02	3.6	−0.092	1.1
31–40	−1.547	0.68	−0.018	0.49	−0.008	0.07	−0.007	0.06	0.012	9.8	−0.069	0.8
41–50	−3.019	1.12	−0.029	0.79	−0.005	0.04	−0.004	0.03	0.023	5.4	−0.076	0.9
51–60	−2.244	0.98	−0.022	0.82	−0.031	0.22	−0.04	0.28	0.005	1.2	−0.004	0.1

Results are presented as the mean.

ACV = anterior chamber volume, ACD = anterior chamber depth, ACW-H = anterior chamber width measured in the horizontal direction, ACW-V = anterior chamber width measured in the vertical direction, LV = lens vault, and PD = pupil diameter.