Essilor CS pola 600, Руководство пользователя, Страница: 22 / 37

D
IVISION
D
ESCRIPTION
T
EST METHOD
Phoria test - (Cross
phoria)
This test is for
testing
horizontal/verti
cal phoria of
right or left eye
by using
polarizing filter.
Patient's
visual status
Phoria Method
Esophoria ⓐ
Add B.O prism until a vertical line
can come to the center of a
horizontal line.
Exophoria ⓑ
Add B.I prism until a vertical line can
come to the center of a horizontal
line.
Left eye's ⓒ
hyperphoria
Add B.U in a right eye and B.D in a
left eye until a horizontal line can
come to the center of a vertical line.
Right eye's ⓓ
hyperphoria
Add B.U in a left eye and B.D prism
in a right eye until a horizontal line
can come to the center of a vertical
line.
Phoria test -
(Fixation point of
cross phoria)
The test is for
measuring
vertical/horizon
tal fixation
disparity of
right or left eye
by using
polarizing filter.
1. Show cross phoria 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 cross phoria 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
Esodisparity ⓐ
Add B.O prism until being no
deviation.
Exodisparity ⓑ
Add B.I prism until being no
deviation.
Left eye's ⓒ
hyperdisparity
Add B.U in a right eye and B.D in a
left eye until being no deviation.
Right eye's ⓓ
hyperdisparity
Add B.U in a left eye and B.D prism
in a right eye until being no
deviation.
CSPOLA600 / CSPOLA600C - Polarized visual chart system > V5 - 03-2018
26
U
SER MANUAL
> VII. T
EST METHOD