This study aims to determine the relationship between the incidence of cataracts and diabetes
mellitus in patients at the Tanjung Harapan Health Center, Marga Tiga District, East Lampung
Regency. The population in this study were outpatients for the period January - May 2021 using a
case-control design with 38 subjects divided into 19 case groups (cataract patients) and 19 control
groups (patients without cataracts). History of diabetes mellitus data seen from the patient's medical
record and processed using the chi square test with a significance level of p <0.05. Analysis of
hypothesis testing using SPSS version 21, the results of this study the asymp sig value of 0.020, which
is <0.05, which means Ho is rejected, this proves that there is a significant relationship between the
incidence of cataracts and Diabetes Mellitus. This data deserve to be tested with Chi Square because
there is no Expected value less than 5