Shouldnt affect it but adjust your diopter on the camera if it has one, it will make things more in focus for you if you havent done so already.
EDIT: if they're big glasses then it might make it harder look into the viewfinder.
they dont seem as colourful on the comp as they do on my screen for some reason. btw, i dont know whats with that last pic it must of been somin moving very fast coz th shutter as onlly open for 13 secs.
The first one I left the shutter open for 30 secs so it shows how far the stars moved in that time
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I left the shutter open for 13 secs on this one.
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I love the colour!
It was still too bright outside so in an hr I'll take some better ones.