Section 20-141-21 - Standards applying to sun glasses, etc(1) Sun glasses, goggles, plano safety glasses and plano welding goggles are optical lenses; spectacles, eyeglasses, optical appliances or other kindred products are optical glasses to aid vision and (2) in the interest of public health and safety such optical products shall be in accordance with standards for quality, the specifications for which shall govern the glass or other material used for glasses in order that they shall not produce distortion in excess of the allowable tolerances, the required degree of tranparency for the transmission of light and the certification that such standard has been complied with.Conn. Agencies Regs. § 20-141-21