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 6645-01-004-0803
NSN 5895-00-395-2657
NSN 6110-00-891-9917
NSN 5998-01-485-0433
NSN 7035-00-020-2227
NSN 5910-00-466-1784
NSN 5855-01-588-6065
NSN 5855-00-928-1912
NSN 6110-00-553-8816
NSN 5945-00-176-0545
NSN 5999-01-585-4505
NSN 2925-01-354-1752