Do Your Eyes Adapt to the 3D?

So i got me a 3DS a few days ago (aqua blue is the best), and when first playing SSF4 on it with 3D i found it hard to focus. Its like the 3D seemed so unatural. but after like 2 days of playing the 3d feels good. So my question, has anybody found their eyes adapting to the 3D. and also how far or close do you hold it for good 3D viewing? I hold mine prety close and find the sweet spot is rather good.

I didn't have a problem. From the moment I started using it I could see the 3D perfectly.

I find that having the 3D slider at about 50% works best for me, full 3D just kills my eyes. Only time will tell if I'll ever be able to bump it all the way up to 100%

After 3 or so hours it was completely natural.

I could see 3-D at 100% from the stat and my eyes are meshed up.

Normal from the start for me.

I actually got dizzy, but of course I only played it for five minutes.