American Board of Opticianry/National Contact Lens Examiners (ABO/NCLE)

Contact Lens Society of America(CLSA)

Council for Higher Education Accreditation (CHEA)

Essilor of America 

National Academy of Opticianry (NAO)

National Federation of Opticianry Schools (NFOS)

Opticians Association of America (OAA)

Lab Division of the Vision Council, formerly the Optical Laboratories Association

A very complete set of links to all manner of optically related websites, brought to you by the National Federation of Opticianry Schools.