An essay on visual glasses, (vulgarly called spectacles) wherein it is shewn ... that the common structure of those glasses is con[trar]y to the rules of art, to the nature of things, &c. and very prejudicial to the eyes. The nature of vision in the eye explained, and glasses of a new construction proposed . ... By B. Martin.
Martin, Benjamin,1705-1782.
London : printed for the author, and sold at his house,
1760.
ESTC