A few days ago I told you about some myths about the 3D TVs. Following the article I received several comments from friends who assured me that they view 3D produced some problems, such as headaches and dizziness.
Although we have 3D movies from the ’50s, there is still little experience and few independent studies on its effects. However, it is clear that 3D content can cause dizziness in some people, the deeper is the image on the screen.
Some manufacturers already include warning of the side effects of 3D displays, as “dizziness, nausea, disorientation, eye strain and postural imbalances” messages. But these effects do not affect everyone the same way.
WHY WE CAN MAREARNOS?
Having 3D images our eyes have to make an effort to fit the depth of content, leading to discomfort, eye fatigue and dizziness which may result in headaches.
This effect is called accommodative convergence.
The impact may be even greater if the images move quickly, because our view would make a greater effort.
We also may be affecting an inadequate distance, usually being very close to the screen; As with televisions and computer screens, or to sit in the front row at the movies (those closest to the screen).
And if the image has a lot of depth and background objects or details. So when there are objects in the background that are “long-distance” of those in front.
HOW CAN WE AVOID IT?
We can do little. It is in the hands of manufacturers 3D projection devices and content developers.
But little is more than nothing!
Find a suitable distance and reduce the visual angle. In general this means away from the screen.
Using the manufacturer’s recommended glasses. The glasses are developed to create the 3D effect from a signal generated by a device, do not apply to everyone. Note that the glasses are only for 3D !.
Prevent devices are vibrating while we’re watching them to prevent the multiplication effect.
View 3D fresh or well ventilated areas, avoiding unpleasant odors.
Chewing gum or eating, for example, candy or popcorn, because it helps reduce the negative effects of the conflict between vision and balance.
Place dim light to reduce contrast and thus the effort to make our sight.
3D duo prevents fatigue, like 3D and alcohol. Alcohol and fatigue may enhance the negative effects.
View 3D gives us more tired, so we should not stay long without breaks.
And finally, it would not hurt to consult an eye doctor, since these ailments could be hiding another vision problem, for example, stereo blindness or presbyopia. Especially if the discomfort is not quickly go after stop watching 3D images.
And do not forget that the 3D is not recommended for pregnant women, people with heart problems, frequent dizziness, history of epilepsy or seizures, and children under six years. I do not know why, but what is included in almost all the equipment manuals ….
I can not say that 3D as we know it is going to stay long, but it uses technology that will continue to improve. Meanwhile we help have pleasant experiences in 3D.