The glass lens for the resistance fatigue glasses and the glasses which use that

摘要

(57) Abstract Objective Fatigue of the eye with VDT fault and the book-reading etc of long haulIt decreases. Constitution The plane surface cutting plane gets near to the point beam following, it becomes thickThe glass lens for the resistance fatigue glasses of the prism condition which possesses the taper andThe resistance fatigue glasses which use that. As for glass lens limit to plane surface glass lensAlso the combination with the spherical surface and the aspherical lens includes.