Fitness for aviation duties amongst Type 2 Diabetics depends upon a stringent evaluation (to exclude common complications of diabetes; assessment of the degree of control; weight and blood glucose measurements); and regular additional review (Eyes for retinopathy and vitreous opacities; Neurological for evidence of neuropathy; blood tests including biochemistry, [HbA1], renal function, liver function and plasma proteins, plus fasting blood lipids and cholesterol; cardiological review; and urinary tests for detecting early renal damage).
You have reasons to be optimistic since diabetes not requiring insulin administration and without any complications is considered compatible with flying status. Quoting from the JAR Manual of Civil Aviation Medicine, 2009 para "6.7 [Aeromedical assessment] [rest snipped] Type 2 diabetics fully controlled on diet alone may be [assessed as] fit [for] Class 1 and Class 2 [without limitations], subject to detailed follow-up at periodic medical examinations or at least annually. Those requiring [treatment with] biguanide [glitazones, the combination of glitazones with biguanides] or alpha-glucosidase inhibitors in addition may be acceptable [with a multi-pilot (Class 1 ‘OML’) limitation for Class 1 applicants] and [without limitation for] Class 2 [applicants,] but the follow-up would need to be more stringent, namely 6 monthly. The use of sulphonylureas, [Repaglinide or Nateglinide] is unacceptable except for Class 2 [with a safety pilot (Class 2 ‘OSL’) limitation]."
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