DIVISION DESCRIPTION TEST METHOD
Orthoptic test - (Binocular
balance)
The test is for
synchronizing the
visual function with
both left and right
eye by using
Red/Green filter.
1. Show binocular test types to a patient.
2. Let a patient wear Red/Green glasses (right eye = red
filter, left eye = green filter).
3. Ask a patient which line of both above and below lines is
shown much clearer. If above line is clearer +0.25D as
much should be added at a right eye. On the contrary, if
below line is clearer +0.25D as much should be added at a
left eye.
Orthoptic test -
(Red/Green binocular
balance)
The test is for
adjusting to the
balance of both right
and left eye by using
prism glasses.
1. Show Red/Green binocular balance test type to a patient.
2. Let the patient wear prism glasses in a left eye (left =
Down, right = Up).
3. Ask a patient which one is clearer of green circle and red
circle on Red/Green test type. If the patient saw the red
circle clearer, +0.25D should be added in a left eye until he
can see that Red/Green circles are just alike. But if the
green circle was shown clearer, +0.25D should be added in
a left eye, until the circles are equally shown.
Orthoptic test - (Worth 4
dots)
The test is for
measuring which eye
is better shown of
left & right eyes, by
using Red/Green
filter.
1. Show Worth 4 dots test type.
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 Worth 4 dots 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.
Left eye's suppressionⓐ
> Left eye would be suppressed, if a patient
saw only 2 red lights.
Right eye's suppressionⓑ
> Right eye would be suppressed, if a
patient saw only 3 green lights.
Blendingⓒ
> If a patient saw 4 dots, binocular function
would be normal.
Diplopiaⓓ
> If a patient saw 5 dots, he/she would have
diplopia.
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