Huvitz CDR-9000 - Near Addition Test with Fused Cross Cylinder Lenses

140 Digital Refractor CDR-9000
13.4. Near Addition Test with Fused Cross Cylinder Lenses
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Objective: To correct the ADD according to the accommodation using Cross
Grid
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Chart: Near Distance (Cross Grid) chart
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Auxiliary Lens: None
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Expectation: To make the horizontal and vertical rods have the same clarity a
nd the same width similar to Far Cross Grid Test.
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Operation Sequence:
1. Press the [N ADD #] button and lower the Near Chart and position the N