# 3D movies don't work for me

**URL:** <https://boards.straightdope.com/t/3d-movies-dont-work-for-me/522613>\
**Category:** Factual Questions\
**Created:** [December 26, 2009, 8:02am UTC](https://boards.straightdope.com/t/3d-movies-dont-work-for-me/522613 "2009-12-26T08:02:40Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![Jormungandr](https://avatars.discourse-cdn.com/v4/letter/j/a6a055/32.png) [@Jormungandr](https://boards.straightdope.com/u/Jormungandr)\
**Post date:** [January 1, 2010, 4:01am UTC](https://boards.straightdope.com/t/3d-movies-dont-work-for-me/522613/21 "2010-01-01T04:01:36Z")

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> [@weisser83](#):
>
> Are you able to see [3D Stereograms?](http://www.eyetricks.com/3dstereo.htm)
> 
> I remember first being introduced to the concept when I was about 8-years-old. It took me a while to see it the first time (20 min+). But, after that, I was able to get them immediately, even after 20+ years of not seeing one. Maybe it’s something you have to train your eyes and brain to see, perhaps a form of muscle memory?
> 
> It could be convergence or eye dominance according to this [article](http://www.eyetricks.com/stereograms/stereowhy.htm).

I can usually do them when I’m told what I’m supposed to see. Then, I can see it without really trying. I think it could be an eye dominance issue. It was mentioned by the optometrist when I got my current pair of glasses that one eye seemed dominant. It surprised me that no one caught it in the decades I’ve been wearing glasses.

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