ABSTRACT Objective: To analyze the diabetic autonomic neuropathy through the comparison between the pharmacological mydriasis in patients without diabetes and with type 2 diabetes. Methods: This is an observational, cross-sectional, case-control study. The patients were dilated with phenylephrine 10% and tropicamide 1% eye drops. They were divided into patients without diabetes mellitus (Control or Group Zero) and patients with type 2 diabetes mellitus (Case Group). These patients with diabetes were divided into six groups according to the international classification of […]