Refractive Errors

• Alcon Investigative Site — Johns Creek, Georgia, United States

• Eye Speciality private hospital — Baghdad, Iraq

• Alcon Investigative Site — Maitland, Florida, United States
• Alcon Investigative Site — Johns Creek, Georgia, United States
• Alcon Investigative Site — Bloomington, Illinois, United States
• Alcon Investigative Site — Memphis, Tennessee, United States

• University of Utah John A. Moran Eye Center - Midvalley Location — Murray, Utah, United States

• Alcon Investigative Site — Maitland, Florida, United States
• Alcon Investigative Site — Bloomington, Illinois, United States
• Alcon Investigative Site — Memphis, Tennessee, United States

• Eurolens Research - The University of Manchester — Manchester, United Kingdom

• Ohio State University College of Optometry — Columbus, Ohio, United States
• University of Houston College of Optometry — Houston, Texas, United States

Not specified

• Department of Ophthalmology, University Hospital of Alexandroupolis — Alexandroupoli, Evros, Greece
• Department of Computer Science and Biomedical Informatics, University of Thessaly — Lamía, Thessaly, Greece

• Retina Eye Hospital — Bursa, Turkey (Türkiye)