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 6320-00-483-0451
NSN 6685-00-393-2219
NSN 5996-00-500-7328
NSN 5855-01-199-2046
NSN 6135-01-557-9656
NSN 5990-00-980-7808
NSN 5945-01-044-2718
NSN 6610-01-613-1831
NSN 6610-01-304-3226
NSN 6650-00-111-3399
NSN 6105-01-411-7377
NSN 5905-01-417-8369