Fig 1.
Kanazawa Medical University Cataract Classification and Grading System.
a: Retrodots—Judged by size of area of opacity within the central 3-mm diameter area of the pupil, b: Waterclefts—Central type WC: opacity inside but not outside the central 3-mm diameter area of the pupil, Peripheral type WC: opacity outside but not inside this central 3-mm diameter area.
Fig 2.
Cortical cataract opacity cases.
a: axle-shaped opacity, b: wedge-shaped opacity, c: ring-shaped opacity. Inner circle (yellow) shows the central 6-mm diameter area of the pupil.
Table 1.
Number and mean age of the subjects in each region.
Table 2.
Prevalence of the five types of cataract per region.
Fig 3.
COUV distribution among subjects.
Table 3.
Mean cumulative ocular UV exposure by region (stratified by sex and age).
Table 4.
Risk of the five types of cataract in the high cumulative ocular UV exposure (COUV) group compared with the low COUV group (adjusted for age, sex, axial length, and DM).
Table 5.
Risk of the five types of cataract for two-, three- and four-fold cumulative ocular UV exposure (COUV) based on the mean COUV in Japanese people (all adjusted for age, sex, axial length, and DM).
Table 6.
COR (axle-shaped, wedge-shaped, and ring-shaped) risk of the high cumulative ocular UV exposure (COUV) group compared with the low COUV group (all adjusted for age, sex, axial length, and DM).