A device known as an optometer or auto-refractor aids in the automated assessment of refraction. This method provides an alternative to the conventional refractive technique for calculating the refraction error.
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With Auto-tracing feature, operator can adjust the focus and lignment in up and down directions. With Auto video taping feature, operator can take
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【Measurement Range】 Vertex distance 0mm, 12mm, 13.75mm spherical -20 - +20D (VD=12) 0.12/0.25m-1 Step Cylinder: -8 - +8m-1 0.12/0.25m-1 step Axis
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