DIVISION DESCRIPTION TEST 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.
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