Essilor CS pola 600, User Manual, Page: 23 / 37

D
IVISION
D
ESCRIPTION
T
EST METHOD
Schober's test -
(Decussation circle)
The test is for
measuring
vertical/horizontal
phoria of right or
left eye by using
Red/Green filter.
1. Show Schober's test type to a patient.
2. Let a patient wear Red/Green glasses (right eye = red filter,
left eye = green filter). The patient sees « » ”mark in a right
eye and « » mark in a left eye on Schober's test type. The
binocular condition would be ideal, if the patient could see
« » mark.
3. Judge a patient's binocular function as below, while asking
him how the type is seen.
Patient's visual
status
Fixation
disparity
Method
Esophoria ⓐ
Add B.O prism until being
no deviation.
Exophoria ⓑ
Add B.I prism until being
no deviation.
Right eye's ⓒ
hypophoria / Left
eye's hyperphoria
Add B.U in a right eye and
B.D in a left eye until
being no deviation.
Right eye's ⓓ
hyperphoria / Left
eye's hypophoria
Add B.U in a left eye and
B.D prism in a right eye
until being no deviation.
U
SER MANUAL
> VII. T
EST METHOD
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CSPOLA600 / CSPOLA600C - Polarized visual chart system > V5 - 03-2018