The Welch Allyn RETeval-DR Electroretinograph is designed for healthcare providers who want to improve management of their patients with diabetes. In just three minutes, you can objectively screen for vision-threatening diabetic retinopathy (VTDR) wherever patients receive care. Welch Allyn RETeval-DR Electroretinograph enables efficient, comfortable, non-mydriatic screening for VTDR that improves patient compliance to help preserve vision in your patients with diabetes. NOT AVAILABLE IN THE U.S.A.