60
5.5.11 Stereopsis
Test purpose: to test stereopsis
Test sighting mark: stereo sighting mark
Assistant lens: Right eye red optical filter, left eye green optical filter (red and green stereo sighting
mark)
Binocular circular polarized optical filter (polarized stereo sighting mark)
1. Call in stereo sighting mark.
2. Ask the patient about the sighting mark he sees and test according his answers.
Marks in normal eyes during test: figure 12, 3, 6, 9 and the central round point are at the same plane,
and four short lines protrude outwards; the distances from the short line aside figure 12, 3, 6 and 9
to the eye are seemly shortened, and the short line aside figure 9 is the nearest.
The stereoscopic parallaxes of all line are as follows:
The stereoscopic parallax between the short line aside figure 12 and the central round point is 10
′
;
The stereoscopic parallax between the short line aside figure 12 and figure 3 is 1
′
;
The stereoscopic parallax between the short line aside figure 3 and figure 6 is 2
′
;
The stereoscopic parallax between the short line aside figure 6 and figure 9 is 4
′
.
3. Input the testing results.
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...