Research of the Correlation Between Metabolic Syndrome, Retinal Thickness and Visual Acuity

Inclusion Criteria: * We enrolled the patients included age more than 60 years old, no positive finding during dilated fundus examination. Exclusion Criteria: * The exclusion criteria were as followed: * systemic disease that will affect visual acuity evaluation (for example: CVA), \*opaque cornea and vitreous * glaucoma * uvietis and other clinically established ocular disease. * According to the LOCS III11, those who had nuclear opalescence, nuclear color more than grade 3 or any grade of cortical cataract and posterior subcapsular cataract were also eliminated.