Modeling a Telemedicine Screening Program for Diabetic Retinopathy in Iran and Implementing a Pilot Project in Tehran Suburb

Figure 1

Patient care and referral pathway. DME: diabetic macular edema; DR: diabetic retinopathy; NPDR: nonproliferative diabetic retinopathy; PDR: proliferative diabetic retinopathy; MPC: macular photocoagulation; PRP: panretinal photocoagulation; PVA: presenting visual acuity. : “evidence of PRP: active PDR” or “evidence of MPC: nonresolved DME”; : “evidence of PRP:  regressed PDR” or “evidence of MPC: resolved DME.” Blue: annual rescreening; orange: nonurgent referral; red: urgent referral.