Legislation introduced in the House Revenue & Taxation Committee today would extend the existing sales tax exemption for prescription medications to glasses and contact lenses. “The prescription exemption has been on the books since 1966,” Kris Ellis, lobbyist for the Idaho Optometric Physicians, told the committee. Her bill, which carries a $4 million price tag, would add prescription glasses and contact lenses to that exemption; the committee agreed to introduce the measure, clearing the way for a possible hearing.