The frame pivot on my old pair of glasses finally gave out...

[randomness]

...so I've switched to a newer pair I ordered as a backup. What I didn't realize is that I'd had them made with a newer prescription, one after a more recent eye exam showed I no longer needed any correction for astigmatism.

Now rectangular things in my field of view appear slightly trapezoidal.

ETA: Then again, this might be because the two eyes have proportionally different correction than they did before.

Comments

[contrariety.livejournal.com]

Yeah, whenever I get a new pair of glasses with a change in prescription things just look... WEIRD for a while.

[achinhibitor.livejournal.com]

Yes... Your brain has compensation for lots of distortions (because your eyes actually suck as an optical instrument). But it takes a few days for the compensation to reprogram for a new set of glasses. (Hint: Don't watch your feet while you're walking, because they'll look a few inches above or below where you know the floor is.) Actually, your brain has two compensation settings, one for glasses-on and one for glasses-off. Put on an empty set of frames at the optician's and it turns on the glasses-on compensation ... and suddenly the world looks weird!

[digitalemur.livejournal.com]

I love how much of our vision is software, not hardware. :)

[achinhibitor.livejournal.com]

I wonder if this is because meatware has the same property as the systems we build: It's often cheaper to compensate for the problem in software than it is to use better hardware.