peer through (something)
To glance, look, or stare through something, especially in an intent, inquisitive, or searching manner. Peer through the telescope and see if you can make out the constellations. I stood peering through the fog, trying to figure out where the bus had left me. Sarah peered through the curtains to see if the man was still lurking outside the house.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
peer through something
1. to view or look through glasses, spectacles, binoculars, etc. From the way she peered through her glasses at me, I knew I was in trouble. Claire stood on the balcony, peering through her binoculars.
2. to stare through a partial barrier, such as a window, drapes, the haze, the fog, etc. George peered through the drapes and spied on the party next door. Sally peered through the haze as best she could, trying to see if the way was clear.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.