Refractive Errors

• Alcon Investigative Site — Longwood, Florida, United States
• Alcon Investigative Site — Maitland, Florida, United States
• Alcon Investigative Site — Orlando, Florida, United States
• Alcon Investigative Site — Bloomington, Illinois, United States

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

• Islamabad Model School for Boys G-11/2 — Islamabad, Pakistan
• Islamabad Model School for Boys I-10/2 — Islamabad, Pakistan
• Islamabad Model School for Boys I-8/4 — Islamabad, Pakistan
• Islamabad Model School for Boys I-9/4 — Islamabad, Pakistan

• 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

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

• 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