2. The Dyop™ Revolution
A vision test that is…
less expensive,
faster to use,
more precise,
…than current vision optotypes.
The Dyop™ Revolution
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3. The Dyop™ Revolution
“Any sufficiently advanced technology is
indistinguishable from magic.”
Arthur C. Clarke’s Third Law
The Dyop™ Revolution
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4. One of these things is not like the
others….
The Dyop™ Revolution
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5. 1984 International Vision Standards
1862 Optotype Precision
5 arc minutes or 5.0 arc minutes?
Or is it 5.2 arc minutes or 4.8 arc minutes?
(Pi used to be 3.0)
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6. 1984 International Vision Standards
1862 Optotype Precision
5 arc minutes or 5.0 arc minutes?
Or is it 5.2 arc minutes or 4.8 arc minutes?
Pi used to be 3.0
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7. 1984 International Vision Standards
1862 Optotype Precision
5 arc minutes or 5.0 arc minutes?
Or is it 5.2 arc minutes or 4.8 arc minutes?
Pi used to be 3.0
A White on Black stimulus gives a more precise refraction
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8. 1984 International Vision Standards
1984 Optotype Precision
How much guessing is 3 out of 5 correct answers?
All Clinical images are not the same.
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9. 1984 International Vision Standards
1994 Optotype Precision
Snellen letters must be 15% smaller … ……………….
to be equivalent to the Landolt ring.
- Wolfgang Grimm, 1994 Optometry and Vision Science,
Vol. 71, No. 1, pp 6-13.
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10. 1984 International Vision Standards
The Snellen “hidden secret”
The Snellen Visual Acuity “end point” has the
patient identifying 3 out of 5 optotypes,
which is a 60% comprehension score.
It is a subjective and a “failing grade”
for both optometry AND the patient.
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11. 1984 International Vision Standards
XIV. Review of This Standard
XIV.1 A standard is meant to be a stable entity, yet all
points are not established by experimental certainty,
deficiencies are periodically revealed and need
correction, new developments in tests are occurring,
etc. Thus, a standard may be an evolving document
and needs to be re-viewed periodically and should
not be regarded as immutable.
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12. 1984 International Vision Standards
Problems with Current Vision Tests
• Culturally based / culturally biased
• Based upon comprehension and not acuity
• 5 arc minute standard is insufficiently precise
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13. 1984 International Vision Standards
Problems with Current Vision Tests
• Tendency for excess refraction
• Based upon reverse stimulation
• Causes retinal fatigue
• Causes decision fatigue
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14. The Dyop™ Revolution
Our eyes developed as survival sensors to detect
motion and distance and NOT just the difference
between the letters ‘E’ and ‘C’.
The Dyop™ Revolution
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15. The Dyop™ Revolution
The eye developed as a survival sensor to
detect motion and distance
and is NOT an analog camera
The eye is NOT an analog camera
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16. The Dyop™ Revolution
Welcome to Vision Science
200 mm separation
arc width 20 arc degrees
C E
570 mm Viewing Distance
90 degrees
Optotypes
Landolt C & Snellen diameter = 5 arc minutes
60 arc minutes = 1 degree
360 degrees = circle
Landolt C & Snellen diameter = 8.89 mm at 20 feet
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17. The Dyop™ Revolution
Welcome to Vision Science
Elements of Acuity
Image Diameter + Threshold Distance = Image Distance
If the Image Diameter is constant
Acuity = Image Distance / Threshold Distance
Dyop™ perception
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22. The Dyop™ Revolution
Dyops™ take the guesswork out of acuity
Optimum Dyop™
Black/White on a Gray background
10 % stroke width = 7.6 arc minutes
White/Black Dyop™ on a Gray Background
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23. 1984 International Vision Standards
Landolt Ring and Snellen letters
• Culturally based / culturally biased
• Based upon comprehension and not acuity
• 5 arc minute standard is insufficiently precise
• Tendency for excess refraction
• Based upon reverse stimulation
• Causes retinal fatigue
• Causes decision fatigue
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24. 2012 Dyop™ Vision Standards
Advantages of Dyops™ as the Vision Standard
• Clinical and Research standards are identical
• Minimizes Clinical variations
• Eliminates cultural and educational bias
• Based upon physiology rather than subjective
comprehension
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25. 2012 Dyop™ Vision Standards
Advantages of Dyops™ as the Vision Standard
• Significantly more precise
• Significantly faster to administer
• Provides a significant increase in low vision testing ability
• Provides infant/non-literate testing relevant to adult acuity
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26. The Dyop™ Revolution
How Dyops™ Work
7.6 arc
minutes
Image Diameter vs. 20/20 Dyop™ Distance vs. Threshold Distance
The size of the 20/20 Dyop™ Distance image
remains constant at 7.6 arc minutes.
Acuity = Dyop™ Distance / Threshold Distance
(e.g. 20/40)
Dyop™ perception
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28. The Dyop™ Revolution
Our eyes developed to detect motion and distance
photoreceptors
100
photoreceptors
neural
layers 1
optic nerve fiber
The Dyop™ Revolution
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29. The Dyop™ Revolution
Increased acuity precision.
Helping the world see clearly, one person at a time
White/Black Dyop™ on a Gray Background
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30. The Dyop™ Revolution
Dyop™ Applications
•Acuity Test
•Refraction Test
•Screening Test (Infants/Children)
•Color Perception Test
•Dyslexia Screening Test
White/Black Dyop™ on a Gray Background
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31. The Dyop™ Revolution
Rapid Dyop™ Acuity measurement
You either see the rotation or you don’t.
Clockwise or Counter-Clockwise.
Rapid Dyop™ Acuity Range Determination
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32. The Dyop™ Revolution
Precise Dyop™ Acuity measurement
You either see the rotation or you don’t.
Clockwise or Counter-Clockwise.
Rapid Dyop™ Acuity Range Determination
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33. The Dyop™ Revolution
Precise Dyop™ Acuity measurement
Acuity at a 10 foot virtual distance
Rapid Dyop™ Acuity Range Determination
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34. The Dyop™ Revolution
Dyop™ Acuity Referral
Find an Optometrist
Rapid Dyop™ Acuity Range Determination
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35. The Dyop™ Revolution
Dyop™ Acuity Referral
Find an Ophthalmologist
Rapid Dyop™ Acuity Range Determination
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37. The Dyop™ Revolution
Rapid Dyop™ Refraction measurement
Acuity at a 20 foot virtual distance
Precise Dyop™ Acuity Determination
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38. The Dyop™ Revolution
Precise Dyop™ Refraction measurement
Refraction in 0.06 diopter increments
Precise Dyop™ Acuity Determination
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39. The Dyop™ Revolution
Precise Dyop™ Refraction measurement
Dyops™ eliminate the difference between the
“science of test taking versus the art of prescribing.”
- Dr. Richard Heggeland
Precise Dyop™ Acuity Determination
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41. Dyop™ Acuity Screening
versus the Teller Test
The Teller Acuity Test allows pediatric vision testing to be performed conveniently in a low-stress
clinical environment, rather than in a laboratory. The Teller Acuity Test is designed specifically for
easy administration. The test takes only about five to 10 minutes to complete for both eyes, and
involves no discomfort on the part of the patient.
Dyop Infant Acuity vs. the Teller Test
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42. Dyop™ Acuity Screening
Infants and children and non-verbal adults.
A 60 seconds test that doesn’t need reading skills
Rotating Dyops™ alternately appear in the Left and Right Panels.
The Dyop™ images get incrementally smaller with each cycle.
At a 5 foot Viewing Distance the “4 foot” Dyop™ images cannot be seen.
Seeing the “4 foot” Dyop™ images at a 3 foot Distance indicates 20/20 acuity.
Dyop Infant Acuity – 10 foot image
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43. Dyop™ Acuity Screening
Infants and children and non-verbal adults.
A 60 seconds test that doesn’t need reading skills
Rotating Dyops™ alternately appear in the Left and Right Panels.
The Dyop™ images get incrementally smaller with each cycle.
At a 3 foot Viewing Distance the “4 foot” Dyop™ images CAN be seen.
Seeing the “4 foot” Dyop™ images at a 3 foot Distance indicates 20/20 acuity.
Dyop Infant Acuity – 10 foot image
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47. The Dyop™ Return on Investment
The Dyop™ added value
How much value can
Dyops™ add to the
practice of an
Eye Care Professional?
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48. The Dyop™ Return on Investment
The Dyop™ added value
1 patient
___ more patient per hour
___ more patients per day
____ more patients per week
_____ more patients per month
______ more patients per year
plus
______ extra sets of glasses
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49. The Dyop™ Return on Investment
The Dyop™ added value
1 patient
_1_ more patient per hour
___ more patients per day
____ more patients per week
_____ more patients per month
______ more patients per year
plus
______ extra sets of glasses
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50. The Dyop™ Return on Investment
The Dyop™ added value
1 patient
_1_ more patient per hour
_5_ more patients per day
____ more patients per week
_____ more patients per month
______ more patients per year
plus
______ extra sets of glasses
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51. The Dyop™ Return on Investment
The Dyop™ added value
1 patient
_1_ more patient per hour
_5_ more patients per day
_25_ more patients per week
_____ more patients per month
______ more patients per year
plus
______ extra sets of glasses
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52. The Dyop™ Return on Investment
The Dyop™ added value
1 patient
_1_ more patient per hour
_5_ more patients per day
_25_ more patients per week
_100_ more patients per month
______ more patients per year
plus
______ extra sets of glasses
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53. The Dyop™ Return on Investment
The Dyop™ added value
1 patient
_1_ more patient per hour
_5_ more patients per day
_25_ more patients per week
_100_ more patients per month
_1200_ more patients per year
plus
______ extra sets of glasses
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54. The Dyop™ Return on Investment
The Dyop™ added value
1 patient
_1_ more patient per hour
_5_ more patients per day
_25_ more patients per week
_100_ more patients per month
_1200_ more patients per year
plus
__600_ extra sets of glasses
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55. The Dyop™ Return on Investment
The Dyop™ added value
1 patient
_1_ more patient per hour
_5_ more patients per day
_25_ more patients per week
_100_ more patients per month
_1200_ more patients per year
plus
__600_ extra sets of glasses
Per Doctor
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56. The Dyop™ Return on Investment
The Dyop™ added value
1 patient
How much is each exam worth?
$20
White/Black Dyop™ on a Gray Background
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57. The Dyop™ Return on Investment
The Dyop™ added value
1 patient
How much is each exam worth?
$20
$20 times 25 patients per week = $500
White/Black Dyop™ on a Gray Background
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58. The Dyop™ Return on Investment
The Dyop™ added value
1 patient
How much is each exam worth?
$20
$20 times 25 patients per week = $500
4 weeks ROI per Doctor = $2,000
48 weeks added profit per Doctor = $24,000
White/Black Dyop™ on a Gray Background
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59. The Dyop™ Return on Investment
The Dyop™ added value
1 patient
How much is each exam worth?
$20
$20 times 25 patients per week = $500
4 weeks ROI per Doctor = $2,000
48 weeks added profit per Doctor = $24,000
White/Black Dyop™ on a Gray Background
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60. The Dyop™ Return on Investment
The Dyop™ added value
1 patient
More referrals to Dyop™ Certified Practitioners
Web based vision standard = more patients
More precise refractions = better patient service
More precise refractions = fewer patent do-overs
Faster refractions = more patients serviced
White/Black Dyop™ on a Gray Background
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The 5 arc minutes of the Landolt ring and Snellen E are approximations and could easily be 4.8 arc minutes to 5.2 arc minutes – a 10% variance.
The 5 arc minutes of the Landolt ring and Snellen E are approximations and could easily be 4.8 arc minutes to 5.2 arc minutes – a 10% variance.
The 5 arc minutes of the Landolt ring and Snellen E are approximations and could easily be 4.8 arc minutes to 5.2 arc minutes – a 10% variance.
The 5 arc minutes of the Landolt ring and Snellen E are approximations and could easily be 4.8 arc minutes to 5.2 arc minutes – a 10% variance.
The 5 arc minutes of the Landolt ring and Snellen E are approximations and could easily be 4.8 arc minutes to 5.2 arc minutes – a 10% variance.
The 5 arc minutes of the Landolt ring and Snellen E are approximations and could easily be 4.8 arc minutes to 5.2 arc minutes – a 10% variance.
The 5 arc minutes of the Landolt ring and Snellen E are approximations and could easily be 4.8 arc minutes to 5.2 arc minutes – a 10% variance.
The 5 arc minutes of the Landolt ring and Snellen E are approximations and could easily be 4.8 arc minutes to 5.2 arc minutes – a 10% variance.
The 5 arc minutes of the Landolt ring and Snellen E are approximations and could easily be 4.8 arc minutes to 5.2 arc minutes – a 10% variance.
The Dyop™ Revolution
05/17/12 This is the structure of the eye and is usually described in terms of a camera.
The 5 arc minutes of the Landolt ring and Snellen E are approximations and could easily be 4.8 arc minutes to 5.2 arc minutes – a 10% variance.
The farther away an image, the more difficult it is to comprehend. Unlike Dynamic Optotypes, the inaccuracy of static letters or symbols comprehension increases with the distance.
05/17/12 The eye is a camera, but is really similar to a DIGITAL camera.
05/17/12 Photoreceptor cones are responsible for acuity as well as color vision and provide the pixels of acuity and vision
The Dyop™ Revolution
The Dyop™ Revolution
Potential Dyop™ Applications: Adult Acuity Test, Infant Acuity Test, Personal Acuity Test, Color Perception Test, Dyslexia Screening Test, Sobriety Test, Diagnostic Testing Systems
The 5 arc minutes of the Landolt ring and Snellen E are approximations and could easily be 4.8 arc minutes to 5.2 arc minutes – a 10% variance.
Dyops™ are a superior standard for testing visual acuity
Dyops™ are a superior standard for testing visual acuity
The farther away an image, the more difficult it is to comprehend. Unlike Dynamic Optotypes, the inaccuracy of static letters or symbols comprehension increases with the distance.
THEORY : Dyops™ work by alternately stimulating photoreceptors much like a switch
The Dyop™ Revolution
Potential Dyop™ Applications: Adult Acuity Test, Infant Acuity Test, Personal Acuity Test, Color Perception Test, Dyslexia Screening Test, Sobriety Test, Diagnostic Testing Systems
Potential Dyop™ Applications: Adult Acuity Test, Infant Acuity Test, Personal Acuity Test, Color Perception Test, Dyslexia Screening Test, Sobriety Test, Diagnostic Testing Systems
Dyop™ diameters correlate directly to the distance where the rotation is detectable as either clockwise or counter clockwise
Dyop™ diameters correlate directly to the distance where the rotation is detectable as either clockwise or counter clockwise
Dyop™ diameters correlate directly to the distance where the rotation is detectable as either clockwise or counter clockwise
Dyop™ diameters correlate directly to the distance where the rotation is detectable as either clockwise or counter clockwise
Dyop™ diameters correlate directly to the distance where the rotation is detectable as either clockwise or counter clockwise
The precision of Dyop images lets you see the difference between noticing the rotation for images set for 21 feet, 20 feet, and 19 feet (right, center, left).
The precision of Dyop images lets you see the difference between noticing the rotation for images set for 21 feet, 20 feet, and 19 feet (right, center, left).
The precision of Dyop images lets you see the difference between noticing the rotation for images set for 21 feet, 20 feet, and 19 feet (right, center, left).
The precision of Dyop images lets you see the difference between noticing the rotation for images set for 21 feet, 20 feet, and 19 feet (right, center, left).
Infant Acuity – 10 foot image. Dyop Rotation moves from the Left Panel to the Right Panel.
Teller test takes 10 minutes in a controlled clinical environment.
Infant Acuity – 10 foot image. Dyop Rotation moves from the Left Panel to the Right Panel.
Infant Acuity – 10 foot image. Dyop Rotation moves from the Left Panel to the Right Panel.
05/17/12 Photoreceptor cones are responsible for acuity as well as color vision and provide the pixels of acuity and vision
05/17/12 Photoreceptor cones are responsible for acuity as well as color vision and provide the pixels of acuity and vision
05/17/12 Photoreceptor cones are responsible for acuity as well as color vision and provide the pixels of acuity and vision
Potential Dyop™ Applications: Adult Acuity Test, Infant Acuity Test, Personal Acuity Test, Color Perception Test, Dyslexia Screening Test, Sobriety Test, Diagnostic Testing Systems
Potential Dyop™ Applications: Adult Acuity Test, Infant Acuity Test, Personal Acuity Test, Color Perception Test, Dyslexia Screening Test, Sobriety Test, Diagnostic Testing Systems
Potential Dyop™ Applications: Adult Acuity Test, Infant Acuity Test, Personal Acuity Test, Color Perception Test, Dyslexia Screening Test, Sobriety Test, Diagnostic Testing Systems
Potential Dyop™ Applications: Adult Acuity Test, Infant Acuity Test, Personal Acuity Test, Color Perception Test, Dyslexia Screening Test, Sobriety Test, Diagnostic Testing Systems
Potential Dyop™ Applications: Adult Acuity Test, Infant Acuity Test, Personal Acuity Test, Color Perception Test, Dyslexia Screening Test, Sobriety Test, Diagnostic Testing Systems
Potential Dyop™ Applications: Adult Acuity Test, Infant Acuity Test, Personal Acuity Test, Color Perception Test, Dyslexia Screening Test, Sobriety Test, Diagnostic Testing Systems
