"The Glasses" Season 5, Episode 3

George believes someone stole his glasses while he was at the pool. Now he has to wear his prescription goggles out in public. He goes to get a new pair with Jerry and Elaine, but ends up buying lady glasses.   Elaine tries to pet a dog and gets bit. Jerry buys a black market air conditioner and has it installed by Kramer. It eventually falls out of the window and lands on the dog that bit Elaine. George claims he saw Jerry's girlfriend kissing Jerry's cousin, but his story isn't very trustworthy since he didn't have his glasses on.