Abstract: Lenses are adapted to be attached to existing eyewear or provided as a separate pair of loupes. In an embodiment, different types of lenses are adapted to have zoom features. In an embodiment, prisms are provided that are non-symmetrical Schmidt roof prisms adapted to increase the deflection degree.

Abstract: A pair of surgical loupes adapted to be secured to an eyewear portion. An embodiment of the surgical loupes comprises mirror coated Littrow lenses and double concave or triplet lenses. Another embodiment of the surgical loupes and eyewear portion comprises a vibration mechanism operably connected to the eyewear portion. Another embodiment of the surgical loupes comprises a counterweight mechanism operably connected to the eyewear portion. Another embodiment of the surgical loupes comprises a LED and camera portion. The LED light may be an orange spectrum light that blocks out blue spectrum light so as to prevent premature curing during dental procedures. Still yet another embodiment of the surgical loupes comprises blue spectrum light blocking lenses operably location in the lens housing.

Abstract: An ergonomic surgical loupe consists of a housing, an objective lens, a mirrored Littrow prism, an ocular lens, and an adjustment mechanism. Light travels through the objective lens, is reflected through the Littrow prism, passes through the ocular lens and strikes the user's eye, enabling a 60 degree viewing angle for performing dental work or similar procedures. Occupational strain on the neck and back of the user is reduced by allowing the user to maintain an upright, neutral head and back position while performing work significantly below eye level.

Abstract: An ergonomic surgical loupe consists of a housing, an objective lens, a mirrored Littrow prism, an ocular lens, and an adjustment mechanism. Light travels through the objective lens, is reflected through the Littrow prism, passes through the ocular lens and strikes the user's eye, enabling a 60 degree viewing angle for performing dental work or similar procedures. Occupational strain on the neck and back of the user is reduced by allowing the user to maintain an upright, neutral head and back position while performing work significantly below eye level.