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'''Optical head-mounted display''' or '''OHMD''' is a type of [[head-mounted display]] that projects images and allows the user to see through its display. OHMDs are used in [[augmented reality]] (AR). Unlike [[head-mounted display#Virtual Reality HMDs|Virtual Reality HMDs]] that obscures our vision of the real world, OHMDs allow us to see our surroundings while streaming data and image overlays in front of our eyes.
Optical head-mounted display can cover only 1 eye such as the [[Google Glass]] or both eyes. Wearers can interact with the projected digital content through input methods such as voice commands, gestures and controllers.
==Types of OHMDs==
