Awaya
Stereo Test Book
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The Awaya Stereo test was developed by Dr Shinobu Awaya,
M.D. from Nagoya University in Japan. The test
provides several improvements compared to other stereo tests which have
been available for some time. A test for stereopsis should be conducted to
obtain a qualitative and quantitative evaluation of binocular function,
especially in cases of heterophoria, heterotropia
and amlyopia. Up until now, most stereopsis tests were designed using crossed
disparity, so that a fused image comes out towards the examinee.
It has been demonstrated that esophoric patients are more likely to
have a greater stereo acuity with uncrossed disparity . The Awaya stereo test
was developed to test for both crossed and uncrossed disparities.
INCREASED RELIABILITY
The Awaya Stereo test employs the more reliable
red/green glasses to provide image separation eye to eye. The Awaya
Stereo test is not dependent on polarizing spectacles which can be quite
tricky to use because they must be accurately aligned horizontally with the
test book/picture, or there will be leakage of the image in the eye that is
not supposed to see the respective image. When this does occur, all sorts of
errors of under diagnosis and over diagnosis can occur. Polarizing spectacle
tests should have some sort of frame between the spectacles and the
book/picture to guarantee proper alignment. There is no such frame available.
If it were, it would hinder the use of the test.
ATTRACTIVE TARGET MAINTAINS
ATTENTION
In the Awaya test, the first target is an attractive image of a butterfly,
not an abstract or line drawing, which makes the test less fearful and
more attractive for children. It is NOT a fly, which some other stereo
tests use and which can cause revulsion or fright in various patients.
MORE COMPLETE TEST
In the Awaya test, the first target, the butterfly, contains not one
test but actually three tests. First, the stereo-depth is greatest for
the antenna, less for the front wings and the least for hind-wings, so
that it is in fact three tests are included in one covering the
largest grades of stereoscopic depth perception.
ESO DEVIATIONS
DETECTED
The Awaya test also includes an additional full test plate
specifically designed for subject-patients with eso deviations.
These patients often have difficulties with the
conventional Stereotest and this part of the Awaya test has been
designed to address those eso deviation patients.
This type of test-plate
is not available in any other stereo test.
Awaya
Stereo Test Instructions
1380R Awaya Stereo Test Book
.......... $220.00 
(Includes 24 figures plus 0 Equal
Size figure, instructions and quality red/green glasses)
Anaglyph
Stereo Tests Technical Bulletin (pdf)
Stereo Test Index
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Anaglyph Stereo Test
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