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Dyop® - Dynamic
Optotype™ Helping the world see clearly, one
person at a time |
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Is
1862 Vision Technology Making
21st
Century Patients Blinder?
Introducing
the "revolutionary"
Dyop® for measuring vision
A Dyop® (short for dynamic optotype) is spinning segmented ring which provides a kinetic
strobic stimulus of the photoreceptors for use as a visual target (optotype).
Twenty first century technology is letter-based
technology. Today’s visual acuity is
primarily measured by the clarity and ability to read text on an electronic
display. Unfortunately, vision science
has not kept up with the more precise demands of 21st century
visual needs, and vision tests using
static visual targets tend to be unnecessarily
imprecise and inconsistent. A novel high‐frequency visual acuity chart
https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1475-1313.1988.tb01076.x "Results confirm the arbitrary nature of the Snellen fraction
and warn about the accuracy of visual acuity determined by using charts of
different letter types, calibrated by Snellen's
system." The Dyop strobic stimulus has greater precision and less variance than
static visual targets
The increased precision and consistency
and “resolution acuity” of Dyop tests are intended as a global
replacement for static letter-based “recognition acuity” tests such as
Snellen, Sloan, and Landolt optotypes, and can provide a more
universal and efficient method of vision measurement.
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The world we see is dynamic rather
than static. As a result, using of
static visual targets to measure vision depletes the response of the
photoreceptors, is inherently imprecise and unnecessarily
inefficient, and tends to produce an overminused
(excess spherical power) refraction.
Keeping vision dynamic requires the kinetic energy of the saccade process for you to see.
The saccade process functions much as the scanning lines of the pixels
of your computer monitor to keep the image from burning into the screen. That kinetic energy of the saccade process
allows the photoreceptors to be constantly refreshed, adjust for changes
in visual focus and color, and avoid photoreceptor fatigue from static
stimuli.
Static visual targets
(optotypes) deplete that photoreceptor response, and are inherently imprecise
and inconsistent. Dyop Basics 1. The world we see is dynamic which is why static vision tests are inherently imprecisely. 2. The world we see is usually in color.
Testing vision only in
black and white ignores most human perception. 3. Our view
of the world is determined by how we see
the world. Imprecise acuity reduces
productivity and increases cultural gullibility. Introducing the
Dyop A Dyop® (short for dynamic optotype) is spinning segmented
ring which uses resolution acuity,
and provides a kinetic strobic photoreceptor stimulus for use as a visual
target (optotype). The precision of the
strobic Dyop stimulus functions much as a visual tuning fork to precisely,
consistently, and efficiently benchmark your visual clarity (acuity). The motion of the Dyop gaps and segments of
the spinning ring create a strobic binary stimulus of the photoreceptors
of your eye. When the gap/segment stimulus area of
a spinning Dyop gets too small (as the Dyop ring appears to become
smaller), that strobic visual gap/segment stimulus area is too small for the
photoreceptors to detect that apparent gap/segment motion. The smallest diameter Dyop ring where the gaps/segments
direction of spin can be detected serves as a benchmark of acuity (visual
clarity) and can be used to determine refractions. It also allows for
the precise measurement of visual acuity in color.
In the 21st
century, 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 refractions
regardless of culture or literacy.
The Mechanics of Vision
Your eyes developed to detect motion and function similar to the pixels
receptors of 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 red, green, and blue) into giving you the perception
of vision. 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 red, green, and blue 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) was 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 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 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. |
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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 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 |
