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 6220-01-331-7115
NSN 6320-01-384-7079
NSN 5895-00-996-8031
NSN 6620-01-361-8685
NSN 6150-01-381-5676
NSN 5950-01-328-1344
NSN 6645-01-519-2220
NSN 5999-00-951-5836
NSN 6685-00-365-5572
NSN 6105-01-574-7711
NSN 6320-01-033-6624
NSN 5950-01-178-0902