Glasses are items the Investigation Team wears to see clearly through the fog in the Midnight Channel. They were given by Teddie, who presumably made them to pass the time. He doesn't need a pair himself, because his eyes have contact lenses sewed in. There is also a pair of glasses with swirly lens, a fake nose, and a fake mustache. However it doesn't have the right kind of lens to see through the fog, since it's a pair that Teddie didn't make correctly. It's interesting to note what looks to be SMPTE color bars on the left sides of the glasses' frames, and it makes sense, since they're used "to watch TV".