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I have similar complaints and no optometrist has been of help. It's really annoying at night, or simply when watching TV, the subtitles are always subtly doubled.

I did get a corneal topography scan a few years ago, and they ruled out keratoconus. Perhaps you can ask for it, it takes like 5 seconds.

It's slightly annoying during the day, but I can write software without my glasses. The worst time is while driving at night, when I can't tell which pair of oncoming headlights is the one I'm actually supposed to avoid.

I'd say if you haven't got checked for this (and if it hasn't been discussed yet) it's advisable to ask for getting a check. It's easy to test if they have the right tools available and I'm not sure how many optometrists are aware of Keratoconus.

Back then it felt like poor luck that they've diagnosed me.

If you're in or near SF I recommend looking up optometrist Dr. David Stamper, he specializes in keratoconus and similar issues.