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 5855-01-540-6522
NSN 5895-00-657-1352
NSN 5835-01-461-8184
NSN 5905-01-510-9397
NSN 5975-01-303-6772
NSN 6150-01-189-2921
NSN 7035-01-513-8038
NSN 5855-00-444-2298
NSN 6220-01-482-7650
NSN 7035-01-383-6549
NSN 4140-01-244-0548
NSN 5895-01-534-7907