The Pyramex Intruder® readers offer the same amount of eye protection with the convenience of prescription glasses. The lenses are available in +1.5, +2.0, or +2.5 magnification. Lens inserts are out of the direct line of vision of the wearer to prevent vision impairment. Superior scratch-resistant, polycarbonate lens is fitted in these spectacles that protect the wearer from UV rays. The frameless design makes these safety glasses very lightweight and easy to wear.