3D Vision Blog

A normal user's look into the world of 3D Stereo Technologies

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The Importance of Your Eye Health for Stereoscopic 3D Perception

March 15th, 2012 · 12 Comments · Other S3D Tech

I’ve talked about the fact that often getting bad experience when watching 3D content can be due to multiple different reasons, one of the most common being the bad quality of the 3D content, but it actually is only one of the possible reasons. Actually one of the other very common reasons that often gets overlooked is the possibility of the viewer having a problem with his/hers vision. It is not that you might need to wear glasses, even if you are wearing prescription glasses or contact lenses they may not be good for watching 3D, as it also depends on what type of an issue with your vision they are intended to correct. In reality every person sees the world differently and that goes for 3D movies as well and when you don’t have a base to compare you usually blame the content for the bad experience and don’t try to look for the problem in other places… it is simply the easiest thing to do.

The problem can really be inside yourself, and while in 3D movies we don’t have the option to tweak the depth and convergence experience, like in stereo 3D games, you can play with other things that can change the experience at least a bit. But no matter what 3D content you are watching and on what display (also important factor for a good 3D experience) if you have trouble with your vision you might be disappointed from the 3D in overall, thinking that all the 3D content you’ve tried is actually bad, flat or whatever while at the same time the problem might be in you. If you go to a 3D movie or watch one at home that everybody is saying is great and looks simply astonishing in stereo 3D, but you are disappointed from the experience you are getting, that is a good hint that you should go and check your eyes, as most of the time the problem can be resolved if you have some sort of an issue with your vision. Of course it is not necessary that your vision might be the reason for you not getting good 3D experience, and eliminating all the possible setbacks is the only way that you can ensure that you are getting the best 3D experience you can. There is an interesting publication covering more in-depth the subject about problems with vision and stereo 3D over at Barry Sandrew’s blog that you can take a look at if you are interested in how issues with vision could affect your perception of 3D…

To read why “People Who Hate 3D Movies Should Have Their Eyes Examined”…

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Keeping Your Eyes Healthy Matters a Lot for Stereoscopic 3D Use

April 29th, 2011 · 4 Comments · General 3D News

There are two food supplements that are very important for the proper eye functioning and may help when talking about watching stereo 3D content without issues, these are Vitamin A and Litein. The lack of these two things in your daily diet can lead to reduced vision, light sensitivity and so on, however you should also be careful not to take too much additional Vitamin A, as there might be some side effects. So it is bet to consult with your doctor before starting to take additional food supplements in the form of Vitamin A and Lutein.

Vitamin A is needed by the retina of the eye in the form of a specific metabolite, the light-absorbing molecule retinal, that is absolutely necessary for both low-light and color vision. Deficiency of vitamin A, due to the unique function of retinal as a visual chromophore, can lead to the appearance of problems such as impaired vision, particularly in reduced light also called night blindness. Excessive vitamin A consumption can however lead to nausea, irritability, anorexia (reduced appetite), vomiting, blurry vision, headaches, hair loss, muscle and abdominal pain and weakness, drowsiness, and altered mental status.

Lutein as a food supplement is another thing that is important for proper eye function and additional protection. Lutein was found to be concentrated in the macula, a small area of the retina responsible for central vision. Studies suggest that intake of Lutein can decreases the risk for eye diseases such as Age-related Macular Degeneration as well as bring improvement in visual performance and decrease in glare sensitivity. While no recommended daily allowance currently exists for Lutein, positive effects have been seen at dietary intake levels of 6–10 mg/day. The only definitive side effect of excess Lutein consumption is bronzing of the skin.

But why are Vitamin A and Litein important for stereo 3D? The reason is simple, at least when talking about stereoscopic 3D content that you watch with glasses – active or passive, as these tend to block some light and reduce the light reaching each eye. Furthermore 3D hardware manufacturers do recommend that you use your 3D monitor or 3D HDTV is a darkened room with no additional light sources, so light sensitivity is even more important. In movie theaters when watching a 3D movie you are also wearing glasses that reduce the light reaching your eyes and the theater itself is kept pretty dark. You should also consider the possibility that the next time you watch something in 3D and you get nausea or a headache that you just may be taking too much vitamin A and the 3D is not causing this… ;)

It is important to keep your eyes healthy and in good condition, so do have in mind the information above as a reference and something to think about at least, but do not do stupid things taking food supplements before consulting with a doctor! If you are having trouble perceiving stereoscopic 3D content, getting headaches or any other trouble it is a good idea to visit a specialist and do a check up of your eyes, it is quite often that the reason are issues with your own vision and not with the 3D content itself!

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