Aumed Group Corp.

Products

	Vision Tester Butterfly

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Model Number

VISTA

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 in use)
+26.75D to -29.00D (when optional ±10.00D lens is in use)
Cylinder power range:
0 to ?.00D,with minimum reading 0.25D or 0.12D (when auxiliary lens is in use)
0 to ?.00D (when ?.00D auxiliary lens is in use)
Astigmatic axis scale: 0 to 180° in 5° steps
Cross cylinder: ±0.25D,reversal type (synchronized with astigmatic axis) ±0.50D optional
Rotary prism: 0 to 20ΔD in 1ΔD step