Batman vppon Bartholome his booke De proprietatibus rerum, newly corrected, enlarged and amended: with such additions as are requisite, vnto euery seuerall booke: taken foorth of the most approued authors, the like heretofore not translated in English. Profitable for all estates, as well for the benefite of the mind as the bodie. 1582.
Bartholomaeus, Anglicus, 13th cent., Trevisa, John, d. 1402., Batman, Stephen, d. 1584.

Of the default of sight. Chap. 19.

DEfault of sight in the eien falleth & commeth of many manner causes: Sometime of euill complection somtime of corruption of fumosity ye cōmeth out of ye stomacke, sometime of stopping of ye sinew yt is called Neruus opticus ye he∣low sinewe, and of straight wayes of webs, of moles, of the crampe, & of other such Somtime of mordinate diet, of lōg sicknesse, of fasting, of seruice of Venus, & of many other causes, as of age, & such other. Then the causes shall be distin∣gued & known by their own signes & to∣kens. For it the default commeth of fu∣mositie of the stomack, ye default of sight it not continuall, but it commeth & go∣eth. For it waxeth and waneth by diuer∣sitie of meat & drinke. If it come of de∣fault of the braine, the default is conti∣nuall before meate and after. If it come of stopping of the sinew, the substaunce of the eie is pure, bright, & cléere. Other signes & tokens be knowne openly. Thē to put of this default, if it commeth of euill humours of ye stomacke, ye stomack shall be cleansed & purged, & al the body, and namely the head: And then men shal lay too remedies, as the place asketh: he which remedies be found in Vatico, and in other authours.