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VT-150

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■Quick,easy and accurate refractions

■ Precision engineering for superior performance

■ Extended measurement range

■ Multi-coated lenses

■Synchronized cross cylinders

■ Wide testing range


1.Sphere power Range:+16.75D to -19.00D,with minimurm reading 0.25D or 0.12D

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

+26.75D to-29.00D

(when optional±10.00D lens is in use)

2.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)

3.Astigmatic axis scale:0 to 180°in 5°steps

4.Cross cylinder:±0.25D,reversal type(synchronized with astigmatic axis)±0.50D optional

5.Rotary prism:0 to 20△D in 1△D step

6.PD adjustment:48mm to 80mm in 1mm steptright and left synchronized)

7.Forehead rest adjustment:16mm backward and forward

8.Convergence:

The optical axes of the lenses are aligned at a distance of 400mm from the vertexes of the cormeas(2mm each for right and lef inward)Interpupllary distance enabling corvergence=57mm to 80m

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

10.Effective field of view:19mm


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