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The product can quickly and precisely measure the astigmatism axis. The light can be converged, radiated and paralleled.

Features:

• Special instrument for measuring refraction deflection and astigmatism axis.
• Observed images of the fundus are sharp and upward.
• The well positioned filament can be rotated 360° and move upward and downward. Brightness of the streak can be adjusted.
• Quickly and precisely measure the astigmatism axis.
• The light can be converged, radiated and paralleled.
• Automatic turning off effectively protects the bulb.
• Two-steps adjustable illumination: S(Bright)、W(Dark).

Specifications:

• Working Distance: 1m
• Adjustable Range of Streak: 0.2mm~0.4mm
• Streak Rotation: 360°
• Illumination Source: 3V/2.1W，Incandescent Bulb
• Power Supply: AC 110~120(V)/220~240(V), 50/60Hz