EZER EDR 9000, Руководство по эксплуатации

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92
Operation
Operation
Manual
Manual
10.19
S c ho b e r Te s t
! Purpose: In subjective test, process Heterophoria in a way of Schober.
!
Chart: Schober Chart
!
Auxiliary Lens: Red Filter for right eye, Green Filter for left eye,
and Rotating Prism for both eyes.
! Target: The cross seen with the right eye must be in the middle of the circle seen with the left
eye.
! Way of Test
1. On Special Chart clause of touch screen, press Schober Chart and enter
Heterophoria test mode.
2. Question the patient like this. “Is the red cross inside the green circle?”
If the answer is “Yes,” no Heterophoria. If the answer is “No,” it is Heterophora, so
go on to the next test.
3. Question the patient like this.
“Is the cross on the left side or on the right side of the circle?”
▶
On left side: External Heterophoria. Turn the dial counterclockwise (+ direction)
to increase the value of BI prism, until the cross locates in the middle of the circle.
▶
On right side: Internal Heterophoria. Turn the dial clockwise (- dirction) to
increase the value of BO prism, until the cross locates in the middle of the circle.
4. Question the patient like this.
“Is the cross upside or downside the circle?”
▶
Upside: Upside Heterophoria for left eye. Press Vertical Prism button and turn the
dial clockwise (- direction) until the cross locates in the middle of the circle.
▶
Downside: Upside Heterophoria for right eye. Press Vertical Prism button and
turn the dial counterclockwise(- direction) until the cross locates in the middle of
the circle.
5. To save the test result after the test is over, press [OK] button of touch screen.
(Heterophoria test is saved automatically so that you can check it out separately.)
Otherwise, when you press [X], the result is deleted.