A transparent optical element having equal spherical diopter curvatures used to correct hyperopic (farsightedness) or myopic (nearsightedness) conditions of the eye.
Classification: Lenses, prisms, and mirrors, unmounted, nesoi
NSN 6610-00-725-6081
NSN 5925-01-450-5886
NSN 5935-01-508-1705
NSN 5975-01-361-4139
NSN 6240-00-901-6759
NSN 5895-01-489-5673
NSN 5960-01-327-0334
NSN 5990-01-510-1430
NSN 5895-01-200-6694
NSN 5925-00-199-5858
NSN 5945-01-539-5349
NSN 4140-00-283-6843