visual aid

Show Summary Details

Quick Reference

A collective name for all forms of corrective lenses for refractive errors and for many devices to magnify small objects or small print. The term is also used to describe the audiovisual devices that speakers can use to illustrate a lecture or other oral presentation.

Subjects: Public Health and Epidemiology.

Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.