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9.1.4
9.1.4
9.1.4
9.1.4
Red/Green Balance Test for single eye
The 4
nd
step of the System-Defined Program is to revise the value of SPH for the right eye more
elaborately, based on the result of 1st step SPH-CYL-AXIS test. After questioning the patient with
which letter does he sees more clearly, between the letter in green background and red background
respectively. When he says the letter in green background is clearer, turn the dial in + direction
(countercloskwise,) while one in the red backgroung in – direction (clockwise,) because that is not
revised. Continue this until the patient says that he sees both letters with similar clarity.
[Figure 9-5] 4
th
step Red/Green Balance Test for Monocular
9.1.5
9.1.5
9.1.5
9.1.5
Check the Power of Glasses for Right Eye
After the test of right eye is finished, check the power of glasses for right eye again.
If necessary, use a mask for the test.
[Figure 9-6] 5
th
step Check the Power of Glasses for Right Eye
