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 5965-01-160-2691
NSN 6130-01-356-8803
NSN 5835-01-373-3498
NSN 6220-00-623-2337
NSN 6620-00-891-8584
NSN 5920-01-601-8379
NSN 5990-00-140-1159
NSN 5915-01-441-5444
NSN 2925-00-724-9252
NSN 5996-00-728-3654
NSN 4140-01-209-8456
NSN 6135-01-394-8087