Here's another assessment technique clinicians find useful. Ask about leisure interests, or listen carefully to patient conversation. Reading or other activities that require visual acuity may have changed, suggesting vision as a cause. An avid knitter may have given up knitting. Someone who formerly read every magazine and newspaper may listen to audiotapes or radio or watch TV instead. And the person who uses a magnifying glass, which is NOT considered an example of corrective lenses? What does that tell you?