For massive screening events
For private home visits
For clinical and optical shop practice
User-friendly one-button operation
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