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 6240-01-354-9457
NSN 6145-01-660-4970
NSN 6150-00-960-4075
NSN 6645-01-267-5505
NSN 5945-01-395-7623
NSN 5835-01-257-0154
NSN 6130-01-477-8622
NSN 5895-01-462-5749
NSN 2925-00-881-3770
NSN 5925-00-592-0881
NSN 6650-00-471-1117
NSN 5895-01-158-8166