AdvertisementMilitary Drops 'Birth Control Glasses' For Fresher PairPlay04:10Download AudioJanuary 27, 2012NPR StafffacebookEmailSince 1990, glasses-wearing Navy recruits have been required to wear their standard-issue S9 eyeglasses through training. (Getty Images)
Since 1990, glasses-wearing Navy recruits have been required to wear their standard-issue S9 eyeglasses through training. (Getty Images)