Ocular Discomfort

• Instituto de Oftalmología FAP Conde de Valenciana, IAP Sede Centro — Mexico City, Mexico Ciy, Mexico

• Byers Eye Institute of Stanford University — Palo Alto, California, United States
• Massachusetts Eye and Ear Infirmary — Boston, Massachusetts, United States
• University of Michigan - Kellogg Clinical Research Center — Ann Arbor, Michigan, United States
• University of Minnesota — Minneapolis, Minnesota, United States

• Ba Ria - Vung Tau Eye Hospital — Bà Ria, Ba Ria - Vung Tau, Vietnam

• Dipartimento "Organi di senso" Università La Sapienza- Policlinico Umberto I — Rome, Italy

• Univ. G. D'Annunzio-Clinica Oftalmologica-Chieti — Chieti, Italy

• Rush Eye Associates — Amarillo, Texas, United States

Not specified

• UO Oculistica, Fondazione Policlinico Universitario A. Gemelli — Roma, Italy

• Bausch & Lomb — Rochester, New York, United States