can you get safe protection for your eyes for fraction of the price? abc s becky worley investigates. reporter: designer shades. they promise to block 100% of uv rays. but do cheaper sunglasses provide less protection than the expensive ones? ultraviolet light will age your eyes faster. reporter: the doctor, professor at uc berkeley school of optometry, says it can cause an early onset of cataracts, macular degeneration even growths on your cornea. to see if cheaper sunglasses can protect against these vision issues see, protected i buy sunglasses from from mall kiosks, even street vendors, and all claim to block 100% of u.v. rays. do they? most cost $10. not more than $20. i buy coach glasses. ray-bans and smith glasses. each well over $100. ooh, $183.
shepard: the designer shades can help you fight the sun in style but can they give you a weather forecast? and google has a project glass, a small screen, there is the size, where the computer comes from, and they tell you about surroundings. look at the video we have. listen. shepard: that takes training. unreliable. anyway, the glasses are not yet for sale but they look like, i don t, a lot of fun. and now a senior editor of mobile, for tech website.