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 6645-01-648-4439
NSN 5965-01-354-1677
NSN 6130-00-163-1905
NSN 5985-01-060-6031
NSN 5905-01-364-7440
NSN 5835-01-023-8733
NSN 5835-01-119-8561
NSN 5960-01-241-1844
NSN 6650-00-738-5418
NSN 5925-01-541-0624
NSN 5835-01-123-8305
NSN 5910-00-919-8668