SIRT1 and cataract: To explore the role of SIRT1 in cataract, we collected the anterior capsule of ARC patients divided them into two groups according to the Emery grading standard, grade II (n = 10 samples per group) and grade V (n = 10 samples per group), and we analyzed the expression of SIRT1 in the lens samples from the two groups of cataract patients with different degrees of opacity.