[Aversion to spectacles and the diffusion of optical knowledge among early modern medical practitioners].

In this essay it is shown that eyeglasses were not highly recommended in medical treatises of the Early Modern times. They were often not mentioned amongst the therapeutical advices for eye disorders, or, if they were, not without a certain reluctance. It is shown how this can be understood in view of commonly held opinions about the diseased body, and the way vision takes place.