Pehlivanoglu S, et al. - Authors ascertained if measuring lens autofluorescence (AF) with a scanning confocal biomicroscope could be used to identify subjects with undiagnosed type II diabetes mellitus (DM), and hence, for it to be used as a marker for the severity of diabetic retinopathy in diabetic patients. Findings suggested that in detecting impaired glucose metabolism, measuring AF of human lens as an indirect evidence of increased advanced glycaton end products may be helpful. A highly significant correlation was seen between the possibility of DM and fluorescence ratio (FR).