|
|
|
||||
|
|
Dyop® - Dynamic Optotype™
Helping the world see clearly, one person at a time |
||||
|
|
|||||
|
|
|
|
|
||
|
It Spins. You See
It. Introducing
the "Revolutionary" Dyop® Test
The
21st Century Test for Precisely Measuring Vision
Which
Takes the Guesswork out of Vision
Vision is a dynamic process which enables us to eat rather
than be eaten. The vibratory motion of the visual
saccades is inherent in all animals
and refreshes the response of the photoreceptors in the back of the
retina. That refresh allows the images
we see to be dynamic and autonomic as the neurons on the retina inner surface
act as the equivalent of a biological circuit board. The constant motion of
the saccades allows the blue, green, and red photoreceptors to use the
chromatic triangulation of their focal depths to regulate acuity. The result is that vision tests using static
visual targets tend to be unnecessarily imprecise and inconsistent, and may
actually be making people blinder. A Dyop® (short for dynamic optotype where “optotype” is the technical term for a visual
target) is a spinning segmented ring with contrasting (typically Black/White)
segments and gaps which provide a strobic stimulus to the photoreceptors as
they spin. The Dyop angular width diameter is used as an indicator and visual
target for measuring acuity and refractions, and uses Resonance Acuity to match the saccade refresh rate of the
photoreceptors. The smallest Dyop
angular width diameter where the direction
of spin can be detected is the visual acuity and refraction
endpoint. At a Dyop sub-acuity
diameter, the direction of spin cannot
be detected. The motion of the saccades results in the strobic Dyop
segment/gap motion Resonating with
the saccades refresh rate and functioning much as a visual equivalent of an
audio tuning fork. That strobic Resonance Acuity results in Dyop
vision testing being three times as precise, with one-sixth the variance, and
up to three times the efficiency of Snellen and other letter-based vision
testing.
Unlike
letters, which are culturally dependent on Recognition Acuity, a Dyop uses Resonance Acuity based on the physiological refresh response of
the photoreceptors of the eye. As a
Dyop ring gets smaller, or you move further away from your computer screen,
you should no longer be able to detect a smaller Dyop ring as it is
spinning. The smallest diameter
Dyop ring whose gaps/segments are detected as spinning serves to precisely
benchmark acuity (visual clarity), and can be used to determine acuity and
refractions regardless of culture or literacy skills. Resonance Acuity and the photoreceptor refresh response are essential for survival and
give your eyes a preference for detecting motion. As you fixate on the Plus (+) in the circle
image below you will likely see a moving Green circle which appears as the
Pink circles seem to rotate around that Plus.
The moving Green circle appears because of the strobic
photoreceptor refresh rate, the depletion of the Red photoreceptors, and
their (depleted) inability to respond to the color Red in the Gray
background.
Dyop visual testing has greater precision and less variance than
static visual targets
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Your eyes function similar to the pixels receptors
in a computerized video camera. As you read these words you have
the illusion that you are seeing lines and shapes and letters. What you are actually seeing are pixels of
light generated by electronic phosphors within the surface of your computer
screen. However, those electronic
pixels are perceived by the photoreceptors of the retina in the back of your
eye. Those photoreceptors in your
retina respond to light as biological pixels.
Those biological photoreceptor pixels combine their response
(primarily to the colors blue, green, and red) into giving you the perception
of vision. Color Screening and Dyslexia Screening The eye’s photoreceptors
not only allow you to see in color, but the refresh rate of the
photoreceptors combines with the strobic saccade process to create a matrix
response to color-perception which allows the photoreceptors to track changes
in the location of those images. The
saccade process functions much as does the scanning lines of the pixels on
your computer monitor to keep the image from burning into the screen. The response of about 100 photoreceptors
combines to create the stimulus for each optic nerve fiber going to the brain
which creates vision and brings that image into focus. However, the neural ganglia layer of the
retina “process” those photoreceptor responses in clusters of about 20
photoreceptors much as a biological circuit board with the emphasis on
patterns of motion and proximity. The
comparative focal depth of the colors blue, green, and red of the images also regulates the
shape of the biological lens and adjusts focal clarity.
The History of Vision Measurement Thousands
of years ago, visual clarity (acuity) used Resolution Acuity as defined by the ability to see the nighttime
gap between two of the smaller stars in the handle of the Big Dipper
constellation.
In
1862 Dutch Ophthalmologist Herman Snellen
used the Recognition Acuity
ability to identify (European) letters as a benchmark for visual acuity. By then, reading had become a dominant
economic and social skill in Europe.
Snellen used the convenience and cultural bias of black letters on a
white background as his benchmark, although most of what we see is NOT in black and white, and other
cultures use pictographs rather than letter-based words. The Dyop Resonance Acuity is three times as precise, with one-sixth the
variance, and up to three times the efficiency of Snellen and other
letter-based vision testing. |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
The personal use of the Dyop test is
intended to only measure visual clarity.
A PRESCRIPTION for glasses or
contact lenses requires vision testing and a refraction performed by an eye
doctor because it CANNOT be done on a two-dimensional display such as a
computer. You can measure your vision with
the Dyop test using the Dyop Personal Acuity Test. If you can’t see clearly enough, GO SEE YOUR EYE DOCTOR. Dyop®
tests are for vision screening
purposes only and
are NOT a substitute for an examination by a
licensed vision care professional. “Any sufficiently advanced technology is indistinguishable from
magic.” As a culture we are
only as good as our memory. As a
species we are only as good as our vision. Just as the hand, held before the
eye, can hide the tallest mountain, so the routine of everyday life can
keep us from seeing the vast radiance and the secret wonders that fill the
earth. -
Chasidic,
18th Century The Dyop® (Dynamic Optotype™) tests and concept are covered under U.S.
Patent US 8,083,353 and
International Published Patent WO
2011/022428. For
further information contact: Allan Hytowitz at Allan@Dyop.org 5035
Morton Ferry Circle, Alpharetta, GA, 30022
/ 404-281-7798 Copyright©2021 Dyop® Vision Associates. All Rights Reserved |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
