Diabetic retinopathy is a well-known complication of diabetes and a major cause of visual impairment and blindness in developed countries. We explored visual impairment and diabetic retinopathy among participants with diabetes in the Tromsø Eye Study. The prevalence of visual impairment (corrected Snellen visual acuity < 20/40) was 4.1% in the better-seeing eye. We found no legally blind participants. ...