Eyeglasses With Air Pockets
Eyeglasses with air pockets in extra-large, bright-colored bows would make them much easier for boatmen and water skiers to fish out if they dropped them into water.
By Barry McFarren, Cromwell, Ind.
August 1962
Perhaps a better idea that is available to purchase today from Amazon are floating, bright-colored straps that you can attach to your sunglasses/eyeglasses. (affiliate link)