EZER EDR 9000, Руководство по эксплуатации

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Operation
Operation
Manual
Manual
1. On Special Chart clause of touch screen, press Clock Dial button to change it into
distorted vision test mode.
2. Press (R) or (L) to choose the field for test.
3. On the touch screen, Press (S) or left/right button to change it to Spherical Power
mode, and add Fogging until tll the line of Clock Dial is seen equally.
4. Question the patient like, ‘In which hour direction line is seen the thickest and 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, multify 30 by the number seen by that
bar, and press [A] or left/right button to fix the distorted vision axis.
[Figure 10-10] Test of Cylinder Axis
10.11
( Mo n o c ula r) Re d / Gre e n Te s t
! Purpose: Check the maximum revised Spherical Refractive Power for Monocular by Red/Green
Test Chart, using the principle of chromatic aberration, Subjective test.
! Chart: Red/Green Chart
!
Auxiliary Lens: None
! Target: Letters on Red and Green Charts must be seen equally and clearly.
! Way of Test
1. On Special Chart clause of touch screen, press Red/Green Chart button to change it into