Binoculars Astigmatism

double vision in binoculars?

So I got first light with my pair of 12X60 skymaster binoculars from celestron and I am having a problem with them. I wear glasses and need to as I have astigmatism but no matter how I adjust them when I look through them at brighter objects like the moon, venus, saturn etc. the image splits so there are two of them. is there something I’m doing wrong?

Have you adjusted the interocular distance and focussed the binocular for each eye? If you have done that and you’re still seeing double, either your eyes or the binoculars are misaligned. Some people just have trouble merging the images in binoculars, and it gets harder as he power increases. If it’s the binoculars themselves, you need to return them for adjustment or replacement. Here’s a test for alignment: (from http://www.montysmagic.com/binocular/index.html )

• Rest the binoculars on a level table in a way such that they are focused on a distant horizontal line. From a few inches behind the binoculars, look through each lens in turn. The horizontal line in each lens should be seen as horizontal, and should be in approximately the same position (vertically) in both lenses.
• Repeat the above, but look at a vertical line. Again both lines should be vertical and should be in essentially the same position in the lenses.

Flanagan Deborah OD PA, Saint Petersburg, FL