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Prism, Prism, Prism!

Course Title: Prism, Prism, Prism!

Part I: Prism Prism Prism Part 1 Handout Simonson

This course is an introduction to the use of prism in order to improve sensory perception and oculomotor control. This course will discuss monocular, bi-ocular, binocular and yoked prism use in vision therapy.

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Part II: Prism Prism Prism Part 2 Handout Simonson

This workshop will provide hands-on experience and demonstration of vision therapy procedures. Participants will complete training using prism bars, prism flippers, loose prism, Risley Prism, prism glasses, and yoked prism. Techniques will include monocular, bi-ocular, binocular and yoked prism activities.

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For password protected information, please visit: Prism Course Notes

2016 COVD Annual Meeting

Dr. Simonson will be presenting at the 2016 Annual Meeting of the College of Optometrists in Vision Development. “The Top 5 Tools of Today: Classic vs. Cutting Edge” sponsored by Good-Lite.

Friday, April 11 3:30-4:30 PM

Top5 Good Lite


Colorado COVD Study Group 2016

  1. Compensating Prism COVD study group 2-27-16 Dudley” – Dr. Leanna Dudley (presented by Dr. Simonson in Dr. Dudley’s absence)
  2. “Disassociating Prism – Bi-ocular Training Workshop” – Amy Zeiger, COVT, Barbara Nelson, COVT Cami Dowis, COVT, Becca Haydon, Carrie Mikelsons, Ashleigh Bouwman
  3. “The effect of yoked prism on ambient visual pathways – how pre-conscious vision affects binocular vision” – Dr. Mike Saxerud
  4. “Therapeutic Prism – Vergence Training Workshop” – Dr. Jen Simonson and Staff

Join this fun crowd for the 2016 Study Group!

Study Group for Vision Therapists and Optometrists:

COVD Study Group 2016 Flyer

February 27, 2016 8:30 am – 1 pm

Topic: prism, prism, prism!

8:30 – Registration and Breakfast
9:00-9:50 – Seminar #1
10:00-10:50 – Seminar #2
10:50-11:10 – Coffee Break
11:10-12:00 – Seminar #3
12:10-1:00 – Seminar #4

Location: Boulder Valley Vision Therapy
Bring: Drink or snack to share
This Study group should prepare you to answer: COVT Study Guide: Prisms
i. Compensatory ii. Monocular iii. Binocular iv. Disassociating v. Yoked

Recommended Reading:

1. Relieving Prism
2. Applied Concepts in Vision Therapy Dr. Leonard Press (Editor) OEPF
3. The Vision Therapist’s Toolkit Thomas Headline, Irene Wahlmeier, Vicki Bedes OEPF
4. Tools of Behavioral Vision Care: Prisms (Vision Therapist Vol 37, #4, 95/96)
5. The Rationale for the Use of Prism in the Vision Therapy Room by Dr. Rob Fox

Therapy Exercises from “Disassociating Prism – Bi-ocular Training Workshop”

Amy Zeiger, COVT, Barbara Nelson, COVT Cami Dowis, COVT, Becca Haydon, Carrie Mikelsons, Ashleigh Bouwman

1. Howell Phoria Card
2. Voluntary vergences
. Valenti Crossed Cylinder Rock Technique
4. Split Prism Ring Game
. G-560 Biocular activity
. Squinchel

Course notes for “Therapeutic Prism – Vision Training Workshop”
Dr. Jen Simonson & Staff

We used the idea that “Therapeutic” meant that you were challenging the visual system vs. using prism in a compensatory way.

The goal of these exercises is to use prism in order to improve sensory perception and oculomotor control.

Workshop Activities:

1. Prism Flipper Reading
P1030431Tool: Custom Prism Flipper
2. Prism Recoveries or Prism Rock
Magnetic Stick Prism Set
Vertical Fusion Target Set
3. Prism Rotations
4. Prism Bar Training
Combo Vertical and Horizontal Prism Bar
EZ View Prism Bar
5. BIM/BOP and BIP/BOM: prism flippers with accommodative activities or combined with +/-Lens Flippers Prism Walk-Aways
6. Prism with Stereoscope
7. Risley Prism
8. Monocular Prism: Spatial judgement, saccades
Monocular Prism Saccades 1
Monocular Prism Saccades 2
Just Noticable Differences
9. Monocular Prism: Manual of Esotropia Therapy
Great Video on #9:
10. Therapeutic Yoked Prism
Vision for Life makes lots of VT videos, check out this video for topic #10:


A Comparison of Van Orden Star Drawings

COVD 2015 Poster: Van Orden Training Utilizing the Stereoscope for iPad

BACKGROUND: Millard E. Van Orden developed a stereoscopically drawn visual pattern to gain insight on the patient’s binocular visual behavior pattern. This drawing records the projection in space of corresponding visual areas. When used for training, the patient receives feedback on the reorganization of visual space and stability of eye posture and binocular vision.

PROCEDURES: Van Orden drawings were completed with the Translucent Correct-eye-scope set at 0-0 and the Stereoscope for iPad set at 0 (optical far-point). The optics of the prismatic lens allow for a distance accommodative and vergence demand, but a physical distance of 20 centimeters. Targets included binocular vision space testing, far point – peripheral control, base-in projection stereo training, and base-out projection stereo training. Instructions were the same for both the traditional and digital drawings and followed the Van Orden Technique of Visual Rehabilitation Instruction Manual (Keystone View Company,


Van Orden Star

Dr. Simonson presented a poster at the 2015 COVD Annual meeting.


1. Ability to complete testing and training in more postures with the same device (standing or sitting, primary gaze or up/down gaze)

2. Ability to add images to electronic health records for performance documentation.

3. Ability to test visual performance when viewing a digital device (clinically noted to cause more visual complaints).

Link to more information: Van Orden Tracing on the Stereoscope for iPad and OPTO App



Thank you for submitting your abstract, ” Van Orden Training Utilizing the Stereoscope for iPad”, to the 2015 COVD annual meeting. The review process has concluded, and we are pleased to inform you that your abstract was accepted, to be presented as a poster. It is scheduled to be displayed on Thursday, April 16 and Friday April, 17 2015 on poster board #29.

Clinical Pearls for Treating Vertical Deviations

I really enjoyed the opportunity to speak during the general education program of the 2014 College of Optometrists in Vision Development Annual Meeting. Part of the reason I wanted to do this is because presenting to a group lets me research and organize my thoughts on a particular topic. In this case, it was treating vertical strabismus with vision therapy. I hope this information is helpful to you in clinical practice! – Dr. Simonson


Course handout

Link to more information from the course “Clinical Pearls for Treating Vertical Deviations

Clinical Pearls for Treating Vertical Deviations

Clinical Pearls for Treating Vertical Deviations

COVD 2014

Course Outline: /user-files/Clinical_pearls_for_treating_vertical_deviations_outline_COVD_2014.pdf

Additional Vision Therapy Activity Instructions: /user-files/Vertical_Strabismus_Pearls.pdf

Eye Stretch Exercises

1. Eye Stretches
2. Closed Eye Rotations
3. Thumb Rotations
4. Rotations Tactile & Visual
5. Rotations Kinsethetic & Visual

Link to Course Videos

2014 College of Optometrists in Vision Development: October 21-25 in San Diego.

COVD 2014 program


College of Optometrists in Vision Development

COVD 39th Annual Meeting
October 13-17, 2009
Denver Marriott Tech Center
Denver, Colorado

Our staff will be completing a 2 year certification process at this year’s annual meeting. Two thousand hours of experience are required before seeking certification. Our therapists have written and submitted papers on such topics as strabismus, amblyopia, focusing disorders, tracking skills, eye teaming ability, and therapeutic techniques. All papers were accepted earlier in 2009. All therapists have also completed a proctored written examination on their vision therapy knowledge. On October 13th, Amy, Barbara, Gail and Krystal will take their oral exams. Keep them in your thoughts! We have been completing 2 hours of additional training every Monday since November 2008 in preparation for this milestone.