Automatic refractometer easyRef

hand-held

Hartmann-Shack wavefront technology based refractometer Designed for easy refractive screening Measure refractive errors of patients from 6 months old through adults Work under normal interior lighting condition For massive screening events Such as school, community and workplace vision screening. For private home visits For clinical and optical shop practice User-friendly one-button operation With the short working distance, the device is extremely easy-to-focus and allows to capture the results within just seconds. Specifications Sphere range -10.0D ~ +10.0D Sphere tolerence ±0.5D Cylinder range -5.0D ~ +5.0D Cylinder tolerence ±0.5D Axis of astigmatism range 1° ~ 180° Data acquisition time 1s/eye