typoscope

typoscope

(tī′pō-skōp) [Gr. typos, type, + skopein, to examine]
A reading aid device for patients with amblyopia or cataract.

typoscope 

A reading shield made of black material in which there is a rectangular aperture allowing one or more lines of print to be seen. It reduces extraneous light reflected from the surface of the paper and assists in staying on the correct line (Fig. T21). It can be helpful for people with low vision who have, for example, media involvement. Recent models embody built-in lighting to provide even and controlled illumination. Syn. reading slit.
Fig. T21 Typoscopeenlarge picture
Fig. T21 Typoscope
References in periodicals archive ?
The Reading Focus Card is a typoscope for use as a reading aid people who have low vision, attention deficit disorder (ADD), attention deficit hyperactivity disorder (ADHD), dyslexia, and forms of autism.
A typoscope or signature guide may help you if your state uses paper ballots.
A typoscope or line guide can assist patients to maintain their place when reading by allowing them to follow the edge of the guide.
The individuals who report improvements in clarity with a typoscope are generally those who report many distortions in patterns of stripes.
A typoscope helps the child keep his or her place when reading and reduces visual clutter.
Nonoptical devices include book stands, special lights, grid paper, magnified games, typoscopes, and writing guides.
3 The ability to advise on the use of, and 1 to dispense simple low vision aids including: hand and stand magnifiers, typoscopes and hand held telescopes.