We derived estimates of the van Herick ratio or grading in a retrospec
tive study using a Chinese clinical population. We found that the van
Herick ratio decreased with age and increased with higher degrees of m
yopia. A lower van Herick ratio was found to be associated with higher
intraocular pressure. There are significantly more patients with lowe
r van Herick ratios or grades in our population than in populations de
scribed by others.