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90
10-23.
Positive Relative Convergence
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Purpose: operate Positive Relative Convergence test during
Subjective test
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Chart: Near Vision Chart
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Auxiliary Lens: None
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Objective: measure the value of BLUR, BREAK, and RECOVERY
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Operation sequence
1. Select horizontal Von Graefe chart
and then adjust
△X value to search blurred point.
2. After finding blurred point, touch [PRC] button on option controller
and then input the value on [Blur] and save it.
3. Change △X value again and search the break point. After finding,
input the value on [Break] and save it.
4.Readjust △X value in reverse to search recovery point. After finding,
input the value on [Recovery] and save it.
Содержание Smart DR13
Страница 1: ......
Страница 33: ...32 Fig 21 Controller View Screen...
Страница 37: ...36 Fig 25 List View and Detailed View Received data...
Страница 44: ...43 Fig 31 Set the Risley prism left and the Jackson cross cylinder Right...
Страница 46: ...45 Fig 33 Pop up selecting Auxiliary lens and CP Operation penal...
Страница 50: ...49 Fig 35 Adjustment of the SPH CYL AXIS Value...
Страница 61: ...60 Fig 50 Near Horizontal Von Graefe Test...
Страница 85: ...84...