백내장 진료를 받은 50대 환자 수는 20만9,974명으로, 40대 환자 수 보다 16만518명 더 많았으며, 성별은 50대 여성이 남성보다 1.4배 더 진료를 받았다.
The number of patients in their 50s, who were treated for cataracts, was 209,974, a number which is 16,518 more than those in their 40s, and as for gender, women in their 50s received treatment 1.4 times more than men.