prism glasses

An optical device, used by persons who must lie supine for extended periods, to allow them to view objects in their environment without eye or neck strain. Prisms mounted on spectacle frames bend the image to make the feet visible while the person is looking straight ahead.

See also: glasses

References in periodicals archive ?

A number of other gadgets and appliances have also been trialled with the intention of tricking the brain to improve body perception, such as prism glasses and minifying lenses.

Prism glasses are based on the principles of mirror therapy, but were designed to allow portable treatments which can be performed more regularly.

Bultitude and Rafal (2010) provided a single case report of a patient with early CRPS managed with prism glasses and mirrors.

Physiotherapy management of complex regional pain syndrome

Through the neuro-optometric evaluation, prescriptions can be made for various types of lenses and prism glasses that can counter the effect of visual midline shift.

The effects of MS on vision and hearing

Brain hurt remark-- In May 2014, The Washington Blog post reported that Republican politician planner Karl Rove "distanced himself from a provocative record in Monday's New York Post, stating he doesn't believe-- as the paper insisted he had actually informed-- that Clinton suffered 'mental retardation' when she went down and suffered a head injury in December 2012." Rove had actually been commenting on Clinton's prism glasses.