مكان المنشأ
Shanghai, China
اسم العلامة التجارية
VisualTech
Product name
Manual Phoropter
Sphere powers range
+16.75D to -19.00D, 0.25D or 0.12D step
Cylinder powers range
0 to- 6.00D, 0.25D or 0.12D step
Rotary prism
0 to 20D, each step is 1D
Interpupillary adjustment
50mm to 80mm
Place of Origin
Shanghai China