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Colorado COVD Study Group

Colorado COVD 2020 Winter Study Group

When: Sunday, February 23, 2020 from 9:00 AM to 12:00 PM (MST)

Where: Hellerstein & Brenner Vision Center, P.C.7400 East Orchard RoadSuite 175-SGreenwood Village, CO 80111

Topic: Testing and Treatment of Vertical Deviations

Presentors: Dr. Jennifer Simonson of Boulder Valley Vision Therapy and Dr. Lynn Hellerstein of Hellerstein & Brenner Vision Center, P.C.

Course Description: Dr. Simonson and Dr. Hellerstein will share clinical pearls in treating vertical diplopia. This course will discuss eye alignment, prism prescribing, and recommended vision therapy techniques to decrease symptoms of double vision. The goal is of this course will be to utilize compensatory and therapeutic strategies to improve fusion skills for patients with vertical strabismus and diplopia. During this workshop, attendees will complete hands-on training on clinical testing for vertical misalignment. Stations will include Maddox rod, Modified Thorington, laser-assisted Hess Lancaster, and other clinical techniques to measure the amplitude of misalignment and fusional ability. This training will help vision therapists understand the direction and amplitude of strabismus. Attendees will also experience induced vertical misalignment and determine optimal prism perscription based on findings. In addition, vision training concepts and procedures will be performed to increase the accuracy, stability, and concomitancy of eye alignment. Learn new techniques and appropriate procedure modifications.

Course is APPROVED for 3 hours of Colorado State licensure CE credit through COA.

Handout: COVD Study Group 2020 Handout Vertical Deviations

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Thank you for coming! Additional Resources here:

  1. Vectograph Information:
  2. Variable Prism Maddox Rod:
  3. Keystone Eccentric Circles:
  4. Fresnel Prism:

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Winter Colorado COVD Study Group 2018

A Novel Approach to Visual Information Processing Skills

Summary: Visual information processing skills (VIPS) have been assessed through a number of clinical assessments. We propose a paradigm shift in the assessment and treatment of VIPS. Through a unique method of analyzing VIPS testing results, we believe we can accurately project treatment times, predict efficacy of therapy, and easily alter traditional optometric VT activities in ways to provide faster, more stable therapy results. This course will cover the history and development of the model with sample cases to demonstrate interpretation.

Bio: Jeff Berger, O.D., FCOVD, graduated from NSU-OCO in 2009 and opened a primary care practice in Erie, Colorado in 2010. Shortly after opening, he began providing therapy services primarily to his own patient base. In 2016, he opened the Colorado Center for Visual Performance, a practice rendering only vision therapy services. He was thrilled to have the privilege of learning from and working with Dr. Bateman and Dr. Dowis during the development of this assessment.

Winter 2018 Colorado COVD Study Group:

Date: Sunday, February 11th

Location: Denver Vision Therapy

Address: Building C, 2460 W 26th Ave #220, Denver, CO 80211

Host: Dr. Leanna Dudley & Staff

Time: 1-4:30pm (break 2:30-3)


Pattern sequencing

Summer Colorado COVD Study Group

Sunday, June 12th

9:00 am – 11 am

Hostess: Leanna Dudley, OD, FCOVD
Denver Vision Therapy, PC
2460 West 26th Ave Suite 220-C
Denver, CO 80211
P: 303-433-3277
F: 303-433-3278

Body Schema

  1. Body awareness and mental map
  2. Primitive reflexes
  3. Self lateralization
  4. Visual perceptual midline
  5. Visual integrative areas (e.g., visual motor, visual auditory, visual tactile etc).
  6. Perceptual/cognitive styles (e.g., simultaneous vs. successive; central vs. peripheral; impulsive vs. reflective

Recommended Reading:



Vision Therapy Training:

  1. Space Fixator:

  1. Chalkboard Circles: and
  2. Infinity Walk:
  3. Moro Walk:–penguin-with-a-pizza–duck-on-a-motorcycle-.html
  4. Pepper Trampoline:
  5. Coding at Chalkboard:
  6. Angels in the Snow
  7. Ball Angels