arcticstoat writes "While punters are queuing up to see Pirates of the Carribean: On Stranger Tides in 3D, the film's main star, Johnny Depp, will never be able to see the film's 3D effects. Like millions of other people, Depp has a lazy eye, meaning that he can't combine the image from both eyes to create a stereoscopic 3D effect. In addition to this, some people with a strabismus (squint) can also struggle to see 3D, while millions of others report problems with nausea, headaches and dizziness as a result of viewing 3D. This feature discusses the various issues surrounding stereoscopic 3D with optometrists, and also reveals how 3D could even be used as a lazy eye correction tool in the future."
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