Course Overview


Stephanie Adams, OD, PhD

Denise Alexopoulos, OD, FAAO

Christine Allison, OD, FAAO, FCOVD

John Baker, OD, MSEd

Barclay W. Bakkum, DC, PhD

Tahira Bedgood, BS

Raman Bhakhri, OD

Chelsea Bradley, OD

Brittney Brady, OD

Elyse L. Chaglasian, OD, FAAO

Michael Chaglasian, OD, FAAO

Robert Donati, PhD

Katie Foreman, OD, FAAO

Kelly A. Frantz, OD, FAAO, FCOVD

Stephanie Fromstein, OD, FAAO

Helen M. Gabriel, OD, FAAO

Geoffrey Goodfellow, OD, FAAO

Greta Gregg, OD

Jennifer S. Harthan, OD, FAAO

Kathryn Hohs, OD

Erica Ittner, OD

Valerie Kattouf, OD

Darren Koenig, OD, PhD

Katherine Lynch, OD, FAAO

Michelle K. Man, OD, FAAO

Tracy Matchinski, OD, FAAO

Mallory McLaughlin, OD

Heather McLeod, OD, FAAO

Janice McMahon, OD, FAAO

Leonard Messner, OD, FAAO

Stephanie Messner, OD, FAAO

Christina Morettin, OD, FAAO

Tricia L. Newman, OD, FAAO

Dominick L. Opitz, OD, FAAO

Yi Pang, MD, OD, PhD, FAAO

Jaymeni Patel, OD, FAAO

Andria Pihos, OD, FAAO

Danielle Piser, OD

Harneet Randhawa, OD, FAAO

Daniel K. Roberts, OD, PhD

Anne Rozwat, OD, FAAO

Patricia Salazar, OD

Navjit K. Sanghera, OD, FAAO

Darrell G. Schlange, OD, DOS, FAAO

Lindsay Sicks, OD, FAAO

Ashley Speilburg, OD, FAAO

Wendy J. Stone, OD, FAAO

Bruce Teitelbaum, OD, FAAO

Christine Weber, MLS

Janis E. Winters, OD, FAAO

Elizabeth Wyles, OD, FAAO

Xiaohua Zhuang, PhD

Rebecca K. Zoltoski, PhD

NBEO Pass Rate

Academic Calendar


Darrell G. Schlange, OD, DOS, FAAO

Associate Professor




Why ICO?

ICO has an excellent academic and clinical program, providing graduates with the knowledge and clinical skills required for comprehensive eye care in all medical settings. Top board scores and extensive post-graduate opportunities are outcomes that attest to this exceptional program. Student life has many social and enrichment opportunities on-campus and also within the city of Chicago. Lifetime learning is a reality at ICO with the many post-graduate and alumni programs.


Dr. Schlange joined the ICO faculty in 1965 following a children’s vision residency. He has sustained an active didactic and clinical teaching commitment throughout his career at ICO, teaching in all academic areas. His leadership and service to ICO is extensive, serving five presidents and seven deans. Dr. Schlange has provided a leadership role in many areas, with an emphasis on the pediatric and binocular vision curriculum and clinical services. He helped develop original clinics for BV, pediatrics, infants, disabled patients and eye movements. He then began a three-year speaking program to more than 100 area schools and organizations, with the goals of enhancing educators’ understanding of vision and learning, and developing patient referrals to ICO/IEI. His commitment to the profession includes active participation in local, national and international optometry and visual science groups. He was a HEW Liaison for developing federal optometric programs, including Medicare. He was member of Illinois Commission on Children, Illinois Youth Council and the White House Conference on Children. He is a founding father of Beacon Therapeutic, a multi-service organization in Chicago. He is active in mentoring groups, fostering an appreciation of learning, community service and a belief in the value and potential of each child’s life despite disadvantaged beginnings. During his years at ICO, he has sustained a passion for optometric education and patient care, mentoring thousands of ICO students and graduates.

Special Interests

Pediatric optometry, binocular vision, vision therapy, ocular motility and visually related learning problems; research interests include developed ocular motility lab for nystagmus, reading eye-movements, attention/ADHD, brain concussions, adult and child developmental disabilities


2003 Illinois College of Optometry, Honorary DOS
1968 University of Chicago, postdoc
1965 Illinois College of Optometry, Pediatric Residency
1964 Illinois College of Optometry, OD
1961 Wartburg College, BA


Illinois College of Optometry
Independent practice

Awards & Honors

2010 Recognition/Appreciation Award as Founding Father and 40 Years Service, Beacon Therapeutic Center
2009 Lifetime Achievement Award, ICO Alumni Association
2003 Honorary DOS, Illinois College of Optometry
1985 Service Award, Illinois Conference on Children 1
1984 Recognition & Service Award, Illinois Commission on Children and Illinois Youth Council
1970 Recognition & Service Award, Invited Participant, White House Conference on Children
1964 Beta Sigma Kappa
1964 Valedictorian, ICO
1964 Tomb & Key Honor Fraternity

Professional Organizations

Fellow, American Academy of Optometry
Member, American Optometric Association
Member, Illinois Optometric Association
Member, Association for Research in Vision and Ophthalmology
Member, College of Optometrists in Vision Development
Member, Optometric Extension Program


Saeed F, Schlange D: Sustained benefits of Therapeutic Tinted Contact Lenses in patients with Albinism. ARVO, 2013.

Allison C, Schlange D: Eye-Movement Analysis in Relationship to Birth Order in Children. ARVO, 2013.

Maino D, Schlange D: The Natural History of the Oculo-Visual Anomalies Associated with Traumatic Brain Injury (TBI): A Case Report. COVD, 2013. 

Eleftherion C, Barker R, Maino D, Schlange D. A Comparison of the Binocular Vision Assessment Program to Outcomes from a Visual Efficiency Examination. COVD, 2013.

Maino D, Schlange D: Improving Vision Function in the Patient with Traumatic Brain Injury. International Brain Injury Association, Edinburgh, 2012.

Saeed F, Schlange D: Effectiveness of Therapeutic Tinted Contac Lenses (CL) in Patients With Albinism. Association of Research in Vision & Ophthalmology, 2012.

Schlange D, Caden B, Maino D: The Interrelationship of Five Oculomotor Diagnostic Tests and Their Associated Binocular Vision Correlates. Academy of Optometry, 2011.

Allison C, Schlange D: Preschool Activities in Relationship to Birth Order and Eye Movement Skills. Academy of Optometry, 2011.

Schlange D, Maino D, Caden B: The Fischer FixTest for Fixation and Saccade Reaction Time Differentiates Between Symptomatic and Asymptomatic Adult Patients. College of Vision Development, 2011.

Allison C, Schlange D: Eye Movements and their Relationship to Birth Order. Association of Research in Vision & Ophthalmology, 2011.

Saeed F, Schlange D: Assessment of Visual Function with Therapeutic Tinted Contact Lenses in Patients with Albinism – Phase I. Association of Research in Vision & Ophthalmology, 2011.

Maino D, Schlange D, Donati D: A Gun Shot to the Head: Oculo-visual & Perceptual Anomalies. International Conference on Behavioral Optometry, 2010.

Pang Y, Frantz K, Schlange D: Vision Therapy Management for Dissociated Horizontal Deviation. Academy of Optometry, 2010.

2000-present: Collaboration research with the Reading Plus National Study.

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