Blurred vision caused by
forgetting to remove one's reading glasses before
getting up from
working on a computer, reading, or doing some other closeup task. The condition is made worse when one's hands are full, preventing one from easily correcting the condition.
I often suffer from ohnopia. Just today I was blogging when an unexpected knock at
the door caused me to jump up to get it, but my reading glasses made
everything blurry and I tripped over my
sleeping dog.