MEDIZS Smart DR13, Руководство по эксплуатации

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10. Unit Test
10-1. Cylinder Axis Test
- Purpose: Obtain maximum revised circumference degrees by 30
degrees’ unit for Monocular, using Clock Dial, Subjective test.
- Chart: Clock Dial
- Auxiliary Lens: None
- Objective: All the lines must be seen as equally.
- Operation Sequence
1. Tap [R] or [L] button to choose the eye for test.
2. Tap Clock Dial button to change it into distorted vision test
mode.
3. Tap [S] button to change it to Spherical Power mode, and add
Fogging until the line of Clock Dials seen equally.
4. Question the patient like, “In which hour direction of line is seen
the thickest or the darkest?”
5. When the patient says all the lines are seen equally, he is
determined not to have distorted vision. If a certain bar is seen
thicker, multiply 30 by the number seen by that bar, and then tap
[A] button to fix the distorted vision test.