Huvitz CDR-9000 - Positive Relative Convergence Test

146 Digital Refractor CDR-9000
6. At this time, turn the dial clockwise to subtract the BI prism. Press the [O
K] button of the touch screen when the charts come together. All done.
13.8. Positive Relative Convergence Test
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Objective: To measure the Positive Relative Convergence test during the subje
ctive test.
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Chart: Near Distance chart
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Auxiliary Lens: None
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Expectation: To obtain BLUR, BREAK and RECOVERY value.
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Operation Sequence: