color options
white, black, golden, silver, grey, rose, oranage
light
LED light, can work in dark room
feature 2
Sphere power reading use control knob design
Sphere powers range
+16.75D ~ -19.00D
Cylinder power range
0 ~ -8.00D
Interpupillary adjustment
48mm ~ 80mm
Effective field of view
19mm
Forehead rest adjustment
16mm backward and forward