Surgery for detachment of the retina should not affect a normal delivery.

critical in the control of the secretion of insulin like growth factor I' Interestingly, high concentrations of this growth factor have been found in patients with progressive exudative lesions.' Our findings suggest that growth hormone is not essential for the initiation and development of diabetic retinopathy. Our patient's normal concentrations of insulin like growth factor I and her growth hormone deficiency emphasise the role of local growth factors in the development of this complication of diabetes.