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Subjects
- Vision Tests -- instrumentation[remove]10
- Astigmatism -- diagnosis3
- Visual Acuity2
- COVID-191
- Diagnostic Techniques, Ophthalmological -- instrumentation1
- Optical Devices1
- Printing1
- Remote Consultation1
- Telemedicine -- instrumentation1
- Tonometry, Ocular -- instrumentation1
- United States1
- United States. Department of Health and Human Services1
- United States. Food and Drug Administration1
- Vision, Binocular1
- Weights and Measures1
- Wireless Technology -- instrumentation1