Diabetes type two

Patient: Hello my name is james r anfinson and i have type 2 diabetes and i take insulin injections. my question is my superviser found out and was concerned at work because i run logging equipment, My questions are if i make sure to check my blood glucose levels and take insulin are there any reasons i cannot work at my job. also my superviser was concerned about blurred vision. thank you for your time. if you could reply to my email please.