RESUMO
Objective:To analyze the differences of ocular surface bacteria between patients with type 2 diabetes and healthy subjects, and to explore the relationship between ocular surface bacteria and type 2 diabetic keratopathy.Methods:Fifty subjects were selected and divided into type 2 diabetes group and healthy control group. Bacterial culture of conjunctival sac secretion was conducted and 16S rRNA sequencing was performed to analyze the difference in the composition of ocular surface bacteria between patients with type 2 diabetes and healthy subjects.Results:There were significant differences in the diversity of ocular surface bacteria between patients with type 2 diabetes and healthy subjects. The species of bacillus brevis and paenibacillus in type 2 diabetes group were significantly higher than those of the healthy control group, while the species of aquatic bacteria were lower.Conclusion:The differences in the composition of ocular surface bacteria may be related to type 2 diabetes mellitus.