Final answer:
Glaucoma is not a result of prolonged, unprotected UV exposure; it's related to increased eye pressure. However, Cataracts and Arc Eye are consequences of such exposure, and while UV exposure can cause eye damage, it does not directly cause blindness.
Step-by-step explanation:
The option that is NOT a result of prolonged, unprotected exposure to the ultraviolet light produced when a laser beam strikes a work piece is Glaucoma. Glaucoma is a group of eye conditions that damage the optic nerve, which is vital for good vision, and its development is largely due to high pressure inside the eye, not directly from UV exposure. However, prolonged exposure to UV-B radiation can indeed lead to Cataracts, which is clouding in the eye's lens and can cause a loss of vision.
Arc Eye, or photo keratitis, is also a consequence of such exposure, resulting from the inflammation of the cornea. Lastly, though extreme UV exposure can cause significant and sometimes irreversible damage to the eyes, it does not directly cause Blindness; rather, blindness can be a secondary result of the development of severe cataracts or significant injury to the cornea.