What seems simple has taken years of research to overcome the problem of reading different eye colors and allowing for head movement so people can relax while using the systems.
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If you inject Avastin into the eye, however, its slightly different structure means it interacts with a receptor in the eye in a different way to Lucentis, with the result that more of the drug is drawn into the circulatory system.
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The split-brain research mentioned by Gazzaniga included showing a subject a different image in each eye, meaning the right and left halves of the brain were presented with different stimuli, with neither being aware of the other.
The cinema systems also don't flicker -- a big complaint about the active lenses, which shutter open and closed very rapidly to try to send a different image to each eye.
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Binocular rivalry occurs when each eye sees a different image and perception alternates between the two images.
However, the researchers tallied data (kept by Eurostat and the World Health Organization) for ten different countries, and found eye-opening distinctions.
School success is always worth celebrating, of course, but this particular CNN story caught my eye for a different reason: the name of the school itself.
In this case, however, the light is polarised in a different linear direction for each eye, so as to match the polarisation of the two side-by-side projectors used to show the film.
Because effects are divided into four different themes such as Makeup, Eye Effects, Performance, and Spa, they are easy to choose from.
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"A dog's eye sight is very different to ours, but much of the problem is that dogs get caught up in the moment, " she said.
"To the eye it won't appear very different at all, " Mr Clarke said.
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Switching to a lower heel partly requires a perception shift: The eye has to become accustomed to a different proportion.
It was an eye-opening experience to learn how different cultures use money.
Our company, Exopack, took a very different tack during the recent market downturn with an eye to growing the business and increasing market share.
Some eye-care offices have a device called an accommodation rule that allows a technician to slide an eye chart back and forth to simulate different distances.
The 200-page report, drawing on sources pulled together by 11 different American government agencies over seven months under the eye of Stuart Eizenstat, President Clinton's undersecretary of commerce, is the most comprehensive to date.
There are different schools of parenting when it comes to keeping an eye on the kids.
Intel, the top flashmaker, is keeping an eye on MRAM but is betting on a different design.
There are many other issues that affect aging eye lenses too, so older eyes require different lighting solutions.
Eye on Wales discovered 16 councils were at different stages of signing up to creating fuel for incineration.
It is keeping an eye on MRAM but is betting on a different design (see A Different Memory Lane).
By comparing genomes across thousands of people, researchers identified genetic variations at 24 different points in the human genome that are linked with eye and hair colors, which past studies used to help determine the appearance of people who had died relatively recently.
He added that in addressing climate change, the international community must not "turn a blind eye to historical responsibilities, per capita emissions and different levels of development".
Sure the Clydesdales are nothing new but they took a tried and true theme and did something different with it all the while bringing a tear to your eye.
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The fluid is made and bottled by Buffalo Trace, a Kentucky distillery that makes 12 different bourbons, a vodka, a couple of ryes and an eye-watering, 125-proof white dog (unaged whiskey).
It's all ostensibly part of a master plan, as is his requesting Elizabeth Banks' beleaguered negotiator, but it feels as if the filmmakers have tried to stuff the plots of too many different movies into a single casing that's already overflowing with eye-rolling improbabilities.
We may be leaders from different political traditions, but on a whole host of issues we see eye to eye.
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To create a 3D picture, the screen flashes back and forth between between two slightly different images, and the glasses work in sync , always showing each eye its own picture.
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And by loading in a different set of numbers, it can be reconfigured in the twinkling of an eye.
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