If you ever have a need for something shorter than the accepted phrase, I call what I do unconsciously with/to my glasses throughout the day as “straightening” them :
“I probably [unconsciously] straighten my glasses at least every fifteen minutes” (usually just before lighting a cigarette).
To the extent that “straightening” would still seem too much like you’re talking about a visit to the local optician, maybe “reposition/ed” would be less ambiguous:
“She unconsciously repositions her glasses constantly throughout the day whether they need it or not.”
(examples of usages other than the ones concocted by me above are found at the above links: ‘Rafe Palladin: Man Of Secrets’ for “straightened” and ‘Definition Murder: A Meg Mccafferty Mystery’ for “repositioned”; both via Google books)
Reposition
… verb [with object] 1Place in a different position; adjust or alter
the position of: ‘try repositioning the thermostat in another room’
Straighten
… verb 1Make or become straight: [with object]: she helped him
straighten his tie
(definitions from Oxford Dictionaries)