Haptics research is concerned with allowing humans to interact with machines in general, but computers in particular with the sense of touch and kinesthesia.

Feedback of sensory information, whether proprioceptive, vestibular, kinesthetic, or tactile, to the user from the simulated environment

Haptics (pronounced HAP-tiks) is the science of applying touch (tactile) sensation and control to interaction with computer applications. (The word derives from the Greek haptein meaning "to fasten.") By using special input/output devices (such as joysticks or data gloves), users can receive feedback from computer applications in the form of felt sensations in the hand or other parts of the body. In combination with a visual display, haptics technology can be used to train people for tasks requiring hand-eye coordination, including surgery.

HDML HLR

Extensions of plastic from the lens portion of an intraocular lens (IOL) that position and center the IOL within the eye.