Cross-eyed image with one eye closed?

Question

A friend of mine sometimes get cross-eyed, usually after a few drinks. What I don't understand, though, is that if she closes one eye, she still sees a double image. Shouldn't closing one eye make you stop seeing double image?

Answer 1

may she have a high astigmatism that make vision nearly to two images.....

Answer 2

Yes, she should not experience double vision with one eye closed.  Perhaps that eye is blurry and she is misinterpreting that as double?

Answer 3

Apparent double vison in a single eye is down to uncorrected astigmatism, cataract, or macular distortion.

Most, most, likely the first.

Optometrist, retired.