In order to watch the limited amount of 3-D content currently available (some sports and movies on DirecTV) viewers need glasses.
Over seven hundred million people who need glasses worldwide cannot afford them.
People who work in jobs which require them to do a great deal of reading are likely to suffer from the condition, known as presbyopia, and will need glasses earlier.
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The ability to focus on near objects decreases, which explains why many people need reading glasses as they get older.
This was heavily hyped for its ability to create a three-dimensional effect without the need of glasses or other paraphernalia.
For Spencer, the need for glasses could be 3-D's Achilles' heel.
Though the need for glasses will be impossible to resist in most people, reading in good light and using clear type will help reduce the strain on the eyes.
Most versions of eye control require the user to wear a pair of glasses and, where it has been implemented on a laptop, for example, without the need to wear glasses it is on a device that has room to instal the necessary equipment.
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LG's initiative, too, was designed to eliminate the need for wonky glasses, Jang said.
Second, Apple may not even need to use glasses to produce 3D images.
The 3DS displays games in 3-D without the need for special glasses.
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Both David and I have been wowed by the demos of the 3DS, which plays 3-D games without the need for special glasses.
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That's the potential of a smartphone from LG, which has a large 4.3-inch touchscreen capable of displaying three-dimensional images without the need for special glasses.
As Nintendo plans to launch with the first major gadget that can show three-dimension visuals without the need for special glasses in the U.S. on Sunday, two large Asian electronics manufacturers are following suit.
Even office workers who don't need distance or reading glasses now may be taxing their eyes unknowingly.
The prototype 7-inch receiver is designed with auto-stereoscopic capability that eliminates the need for special viewing glasses to see stunning 3D TV images.
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Nintendo, meanwhile, is preparing to launch a significant refresh to its line-up, the 3DS, a handheld that can display games in 3-D without the need to wear special glasses.
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Last year Kassalow started going after the other 50% of potential customers who need stronger lenses than reading glasses provide.
Last year, the big Asian consumer electronics companies conducted a coordinated, all-out push for 3D televisions, and consumers largely ignored them, which is hardly surprising given the need for wearing ridiculous special glasses and a paucity of 3D content.
That direct-from-manufacturer model allows the Warby crew to keep costs down and donate one pair of glasses to someone in need for every pair that it sells.
Now we have 2x everything, so if you need any household appliances, dishes, glasses, etc please come by and take them before we give them away.
At least you wouldn't need any of those red and green tinted glasses.
Soap, warm water and a dry cloth are all you need, once a day, to keep glasses optimally clean and functional.
Over 250, 000 pairs of glasses have been distributed to people in need.
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Stunning progress in liquid crystal displays, graphics processing and broadband are finally bringing 3-D displays into homes and offices--without the need for goofy red-and-blue tinted glasses.
If you wear glasses or contacts, you'll likely need to have your eyes checked regularly.
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