1. From the Indiana University School of Optometry, Bloomington, Indiana;
2. Nova Southeastern University College of Optometry, Fort Lauderdale, Florida;
3. the College of Optometry, Ohio State University, Columbus, Ohio;
4. the Southern California College of Optometry, Fullerton, California;
5. the Pacific University College of Optometry, Forest Grove, Oregon; and
6. the School of Optometry, University of Waterloo, Waterloo, Ontario, Canada.