Inclusion Criteria:  Patients aged 18 years and over. Patients who have been screened for diabetic retinopathy at Uthai Hospital Phra Nakhon Sri Ayutthaya Province that can refer patients to Phra Nakhon Sri Ayutthaya Hospital to see an ophthalmologist People with diabetes who are listed on the civil registry Able to take pictures of the retina at least 1 eye.  Exclusion Criteria:  Being a patient in a community hospital with an in-house ophthalmologist Patients who were previously diagnosed for the following conditions / diseases: retinal edema, diabetic retinopathy (NPDR, PDR). The retina is affected by radiation (Radiation retinopathy) or retinal vein blockage (RVO). Past history of laser retinal treatment or retinal surgery Having other eye diseases (non-diabetic retinopathy) that requires referral to an ophthalmologist. Inability to take pictures of the retina (for any reason)