VT-5C

Sphere powers range: +16.75D to－19.00D, with minimum reading 0.25D or 0.12D

(When +0.12D auxiliary lens or optional±0.12D lens is in use)

Cylinder power range: 0 to－6.00D, with minimum reading 0.25D or 0.12D (when auxiliary lens is in use)

0 to－8.00D (when－2.00D auxiliary lens is in use)

Astigmatic axis scale: 0 to 180° ,each step is 5°

Cross cylinder :±0.25D, reversal type (synchronized with astigmatic axis),also can select ±0.50D

Rotary prism: 0 to 20∆D, each step is 1∆D

Interpupillary adjustment: 50mm to 80mm, each step is 1mm (right and left synchronized)

Forehead rest adjustment: 16mm backward and forward

Convergence: The optical axes of the lenses are aligned at a distance of 400mm from the vertexes

of the corneas (2mm each for right and left inward) Interpupillary distance enabling

convergence=57mm to 80mm

Corneal distance device: 2mm forward and 5mm backward from standard plane with scale

Effective field of view: 19mm

Weight: 5kgs

Size: 323mm×315mm×85mm