Astigmatism

• Vance Thompson Vison — Bozeman, Montana, United States
• Vance Thompson Vision — Omaha, Nebraska, United States
• Vance Thompson Vision — Fargo, North Dakota, United States
• Vance Thompson Vision — Sioux Falls, South Dakota, United States

• Sacco Eye Group — New York, United States
• ProCare Vision Center — Granville, Ohio, United States
• Drs. Mcintyre Garza Avila & Jurica — Corpus Christi, Texas, United States

Not specified

Not specified

Not specified

• Treehouse Eyes Pleasanton Center — Pleasanton, California, United States
• Bellaire Family Eye Care — Bellaire, Texas, United States
• Complutense University of Madrid Av. — Madrid, Moncloa - Aravaca,, Spain

• Sohag University Hospital — Sohag, Sohag Governorate, Egypt

• Indiana University — Bloomington, Indiana, United States

Not specified

• Site 101 — Orange Park, Florida, United States
• Site 102 — Orange Park, Florida, United States
• Site 103 — Canton, Georgia, United States