Oh my... This describes my exact experience. The exact same thing happens to me when I get an LD that way. Here's how I solve it:

I usually try to stand still, and try my hardest to focus on my surroundings. Eventually with enough practice you can sustain it and it will snap into clarity. It's hard though.

Second problem. Even after you can see clearly/feel normal, and have both eyes open, it's still pitch black, so you can barely see anyways. Light switches won't work for me. I usually close my eyes, and imagine it being sunny outside. After a couple attempts it works, but you have to believe it.

Follow these steps, the LDs will be much more easy and valuable.