92
10-25.
Near Addition Test using Cress Grid (Near ADD)
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Purpose: Correct Near Addition according to Accommodation, using
Cross Grid.
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Chart: Near Vision Chart (Cross Grid)
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Auxiliary Lens : None
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Objective: Make the clarity and thickness of horizontal/vertical lines
equally, similar with Far Vision Cross Grid Test.
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Operation Sequence
1.
Press [ADD #] button
to drop the Near Vision Cross
Grid chart at the place of about 40cm.
2.
Press R/B/L button to select the eye for test.
3.
Adjust the ADD value until the thickness or clarity of
horizontal/vertical line becomes equal.
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When the vertical line is seen clearly, turn the dial clockwise
(- direction)
-
When the horizontal line is seen clearly, turn the dial
counterclockwise (+ direction.)
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...
