Effects of Light
1,031 views · Published 11 January 2008 · 4:33 · Indexed 19 October 2026
Channel: iHealthTube.com · 2008 · Howto & Style
http://www.iHealthTube.com Dr. Robert Abel, Jr. on what the different types of light are and how they affect our eyesight. More health videos can be found at http://www.ihealthtube.com