Place of Origin | Shanghai, China | Brand Name | Top View |
Model Number | SLY-100 | Sphere powers range | +16.75D to-19.00Dwith minimum reading 0.25D or 0.12D |
Cylinder power range | 0 to-6.00D, with minimum reading 0.25D or 0.12D | Astigmatic axis scale | 0 to 180 in 5 steps |
Interpupillary adjustment | 48 - 80mm in 1mm step | Cross cylinder | 0.25D |
Forehead rest adjustment | 16mm backward and forward | Interpupillary distance convergence | 57 - 80mm |
Effective field of view | 19mm | color | black and white |
Weight | 5kgs |