- American Optometric Associationwww.aoa.org
- World Council of Optometrywww.worldoptometry.org
- National Optometric Associationwww.natoptassoc.org
- American Academy of Optometrywww.aaopt.org
- EyeCare Americawww.aao.org
- The National Eye Institutewww.nei.nih.gov
