MEDIZS Smart DR13, Руководство по эксплуатации

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10-18. Minute Stereo Acuity Test
- Purpose: operate the minute stereo acuity test during subjective test.
- Chart: Minute Stereo Vision Chart
- Auxiliary Lens: polarized filter with 135 degree (for right eye), and
polarized filter with 45 degree (for left eye)
- Objective: With fixation as a center, it must be seen as rotating
clockwise and as embossed.
- Operation sequence
1. Press minute stereo vision chart and select minute
stereo vision test mode.
2. Ask the patient, “How do you see the bars, with the fixation as a
center, from 12 to, 3, 6 and 9 o’clock direction? (clockwise)
- All the bars look like flat (including central fixation): The
patient does not have the capability of stereo vision. Press
‘NG’ button.
- The bars at 12 and 3 o’clock look like cubic: The patient can
perceive to 1 arc minute. Press [1°] button and setup it.
- The bars at 3 and 6 o’clock look like cubic: The patient can
perceive to 2 arc minute. Press [2°] button and setup it.
- The bars at 6 and 9 o’clock look like cubic: The patient can
perceive to 4 arc minute. Press [4°] button and setup it.
- The bars at 12 and central Fixation look like cubic: The
patient can perceive to 10 arc minute. Press [10°] button
and setup it.