@CNN: A rare eye condition helped Leonardo da Vinci paint distance and depth of objects on flat surfaces with the accuracy which he became famous for, new research claims https://t.co/uy5dhrDbb8 https://t.co/592GCgoQNF

@CNN: A rare eye condition helped Leonardo da Vinci paint distance and depth of objects on flat surfaces with the accuracy which he became famous for, new research claims https://t.co/uy5dhrDbb8 https://t.co/592GCgoQNF