
36
12. Press
to make the crisscross cylinder accurately test the astigmatic axis of the right eye.
1
)
Call in speckle sighting mark and ±0.25D crisscross cylinder.
2
)
Reverse side 1 and side 2 of the crisscross cylinder, ask the patient: which side is more distinct?
When the side 1 is more distinct: enlarge the axis;
When the side 2 is more distinct: reduce the axis.
3
)
Repeat above steps until the definitions of side 1 and 2 look the same.
Содержание YPA-2100
Страница 1: ...YPA 2100 DIGITAL REFRACTOR User Manual Version 1 0 Date 20180521...
Страница 5: ...13 Electrical Schematic Diagram 82 14 Electromagnetic Compatibility 83...
Страница 24: ...19 Press to enlarge PD press to reduce PD 3 Press to exit PD input interface...
Страница 31: ...26 key...
Страница 42: ...37 4 Click key shift to 0 5XC 5 Click the key again shift to automatic mode Slit Prism...
Страница 55: ...50 34 Press to finish the test...
Страница 72: ...67 3 Program 1 A B C D are recommended vision test steps users can also add or delete as needed...
Страница 74: ...69 Add Key Click it to add one step automatically 4 Click key to enter program customizing interface...
Страница 78: ...73 3 Click key to popup input box...
Страница 79: ...74 4 Use CCQ 800 lensmeter to test lens data and convey the date to YPA 2100 5 Click key 6 Choose No00001...
Страница 80: ...75 7 Click key to complete data import...