Comparative Study and Validation of New Methodologies for Measuring Addition
Conditions
- Presbyopia
- Near Vision
- Refraction Error
Interventions
- DEVICE: Visual Acuity
- DEVICE: Objective refraction
- DEVICE: Standard Subjective refraction
- DEVICE: Near vision examination and determination of additions
- DEVICE: Binocular vision tests
- DEVICE: Extended trial of addition
Sponsor
Essilor International