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Subjects
- Diagnostic Techniques, Ophthalmological -- instrumentation[remove]9
- Astigmatism -- diagnosis5
- Accommodation, Ocular1
- Contrast Sensitivity1
- Equipment Failure1
- Keratoconus -- diagnosis1
- Oculomotor Muscles -- physiopathology1
- Refractive Errors -- diagnosis1
- Visual Acuity1