|
|
Dyop® - Dynamic Optotype™ Helping the world see clearly, one
person at a time |
|||||
|
|
||||||
|
|
|
|
|
|
||
Not
everyone sees color in the same way.
The Dyop®
test lets you measure acuity in color as well as in Black/White.
Dyop® Color Screening may be a
useful indicator of
potential symptoms
of dyslexia, migraines, and epilepsy.
|
FREE iPad Dyop
Color Screening Test |
Color perception affects
your visual skills and personality.
Harris
– Colored Contacts Paper
Harris
– Colored Contacts Poster
Correlation
of Reading Speed to L/M Ratios
|
Visual acuity (and
accommodation) is regulated by the comparative responses by the cone-shaped Red (L), Green (M), and Blue (S) cone photoreceptors in your eyes. The cone photoreceptors function as
pixelized biological receptors of color much like those of a digital video
camera. The cone photoreceptors also
use the focal length disparity between Red and Green to adjust the shape of the lens and bring the overall
image into focus (accommodation). There are approximately 100 photoreceptors for
every optic nerve fiber. The retina
neural ganglia layers “process” those photoreceptor responses in clusters of
about 20 photoreceptors as a biological circuit board with the emphasis on
patterns of motion and proximity.
Static photoreceptor stimulation tends to be ignored or increase
visual strain. The difference in the
perception of color allows the eye to use those colors to create chromatic triangulation to regulate
the focal length of the lens, with Blue, Green, and Red at increasing focal depths. Photoreceptor Distribution
Dyslexia has little to do with intelligence, or limited
intelligence. Instead, it seems to be a caused by the visual stress
which reduces the ability to read letter-based words. Dyslexia also seems to be associated with HOW we see
colors. There likely is a
correlation between color perception and symptoms of dyslexia, migraines, and
epilepsy. One of the possible causes of symptoms of
dyslexia, migraines, and/or epilepsy is the Red Focused Vision (RFV) and near vision stress caused by having a higher ratio of Red to
Green photoreceptors
(75% red and 20% green photoreceptors).
That Red
Focused Vision increases the visual stability of distance images
but also decreases the stability
of the lens when it needs to focus on near images. That visual dissonance at near distances
is associated with dyslexia-type symptoms. Green Focused Vision (GFV) - with 50% red and 45%
green
photoreceptors enables a more stable close visual image. Red Focused Vision (RFV),
however enables a more stable distance image which facilitates spotting predators and game and seeing
pictographs as words,
rather than words as letter-based combinations. There are multiple
forms of dyslexia as well as varying symptoms
See: https://aceitnow.wordpress.com/2013/02/07/types-of-dyslexia/ Note that Red Focused Vision (RFV) may NOT seem to be a factor with
Dyscalculia (number dyslexia). |
|||||||||||||||||||||||||||||||
|
- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - Dyops® create a unique, and
previously unavailable, ability to understand and experiment with visual
perception. The Dyop® color/contrast test uses the Red Focused Vision (RFV) versus Green Focused Vision (GFV) response to significantly correlate to symptoms of
dyslexia, migraines and epilepsy. Using the ability of a Dyop test to determine precise
acuity endpoints, a matrix of color/contrast permutations was created to
validate those specific color acuity endpoints.
Dyop Color
Matrix with 60 color/contrast permutations Dyop Color Matrix
with 60 color acuity endpoints - visual threshold endpoint distances in feet. It was subsequently realized that the
color/contrast acuity endpoint for some individuals with dyslexia
significantly differed from individuals WITHOUT associated symptoms of
dyslexia, migraines, or epilepsy.
Abridged Dyop Color Matrix with 31 permutations for
dyslexia screening - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - The 31 color/contrast
permutations became the basis for a Dyop duo test which can be used as a ten
second color vision group screening test for potential symptoms of dyslexia,
migraines, and epilepsy. Dyop color/contrast screening
test To screen for the color vision group, select
the FREE Dyop® Color Screening Test above for use on a PC, iPad, or
SmartPhone (iPhone or Android). Move away from the identical-diameter
spinning Dyop® rings until you CAN
ONLY detect either the
spinning Green-on-White Dyop® OR the Blue-on-Black
Dyop®. You can also use the Minus
(-) or Plus (+) symbols to make the spinning rings smaller or
larger. For a proper color
perception screening, the test should be taken without wearing your glasses or other corrective lenses. If you can detect only the spinning Green Dyop® when the spinning rings get
sufficiently smaller or further away, you have Green Focused Vision (GFV). If you can detect only the spinning Blue Dyop® ring you have Red
Focused Vision (RFV). The higher-red ratio
(75% red and 20% green) of Red Focused Vision (RFV)
contributes to an unstable near vision but enables you to better see pictographic words rather than letter-based word combinations.)
Static image screenshot of the
Dyop color/contrast screening test. - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - You may also use the colored spinning GIF files on this webpage (below) by moving away from
the spinning images and noting, when they are sufficiently smaller, as to
whether you CAN ONLY detect spinning of the Green-on-White Dyop® OR the Blue-on-Black Dyop®. The spinning Dyop®
color images below are for
use on a Smart Phone or tablet
When you move away from
the screen, detecting spinning of ONLY the Blue-on-Black Dyop® is potentially indicative of Red Focused Vision and symptoms of dyslexia, migraines,
or epilepsy. - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - Acuity endpoints vary
as to specific colors and visual perception group:
The above color/contrast
permutations are included in the Dyop professional test as part of the
Chart2020 vision test platform. Note:
Dyop® tests are for vision screening purposes only and are NOT a
substitute for an examination by a licensed vision care professional. Your
comments, feedback, and test results would be greatly appreciated. Please send them to Allan@Dyop.org. The Dyop® (Dynamic Optotype™) tests and concept are covered under U.S.
Patent and International
Published Patent WO 2011/022428. For further information
contact: Allan Hytowitz at Allan@Dyop.org Copyright©2019 DyopVision™
Associates. All Rights Reserved. |
||||||||||||||||
|
|
|
|||||||||||||||
