Fig. 1From: The effect of educational program based on theory of planned behavior on promoting retinopathy preventive behaviors in patients with type 2 diabetes: RCTTheory of Planned Behavior (TPB). In this theory, by creating a positive attitude and promoting patients’ subjective norms towards the symptoms of retinopathy and eye care, along with perceived behavior control training and increasing their self-efficacy, eye care performance will improve in the patientsBack to article page