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 6145-01-461-2750
NSN 5950-01-617-9147
NSN 5999-01-441-7707
NSN 5996-00-652-1789
NSN 5975-01-040-7386
NSN 7035-00-131-8219
NSN 6610-00-639-3615
NSN 6650-01-481-3618
NSN 5905-01-634-0595
NSN 5930-01-604-9646
NSN 5945-00-905-5749
NSN 5895-00-767-5397