180 Digital Refractor CDR-9000
13.27. Polarized Cross Test with Fixation Point
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Objective: To execute the phoria test during the subjective test using the Pol
arized Cross chart with the Fixation Point chart.
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Chart: Polarized Cross with the Fixation Point chart
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Auxiliary Lens: 135˚ Polarizing Filter (right), 45˚ Polarizing Filter (left)
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Expectation: The upper-right cross mark for the right sys and the lower-left c
ross mark for the left eye are overlapped into one ideal cross.
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