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Education & Training

Postgraduate Orthoptic Training


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Bachelor’s Degree

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Katrina Callus, CO, COT


Certified Orthoptist | Pediatric & Adult Strabismus


About Katrina Callus, CO, COT


Katrina Callus, CO, COT is a Certified Orthoptist at Children’s Eye Care of Michigan with specialized training in pediatric and adult strabismus, amblyopia, double vision, and testing of vision, eye alignment, and eye movements.

Katrina joined Children’s Eye Care for her postgraduate orthoptic training in 2020 and became a Certified Orthoptist in 2022. Before specializing in orthoptics, she gained several years of ophthalmic experience at Kellogg Eye Center and Associates in Ophthalmology, giving her a broad clinical foundation in eye care before focusing her career on pediatric ophthalmology and strabismus.

Katrina earned her bachelor’s degree in Biology from Adrian College and completed her orthoptic training at Children’s Eye Care of Michigan. During her training, she was selected as a 2021 FOREA Scholarship recipient.

Orthoptic Expertise

  • Pediatric Strabismus Testing — specialized measurement of eye alignment and eye movements in infants, children, and adolescents
  • Adult Strabismus & Double Vision Testing — detailed sensorimotor testing for adults with eye misalignment and double vision
  • Amblyopia (Lazy Eye) Testing & Follow-Up — visual acuity and alignment testing as part of physician-directed care
  • Sensorimotor Examinations — detailed measurements of ocular alignment, motility, and binocular function
  • Infant & Pediatric Vision Testing — age-appropriate methods for measuring vision in babies and young children
  • Patient & Parent Education — helping patients and families understand testing and physician-directed treatment plans

The Role of an Orthoptist

Certified Orthoptists are highly trained eye care professionals who specialize in the evaluation of eye alignment, eye movements, and binocular vision. At Children’s Eye Care, our orthoptists work closely with pediatric ophthalmologists and adult strabismus specialists, performing specialized testing that helps physicians diagnose and manage conditions such as strabismus (eye misalignment) and amblyopia (lazy eye).

Orthoptists are especially skilled at evaluating infants and young children, using age-appropriate techniques to measure vision and eye alignment even when a child is too young to read an eye chart or describe what they see.

This collaborative approach is an important part of the specialized pediatric ophthalmology and strabismus care provided at Children’s Eye Care.

Experience & Orthoptic Training

Katrina earned her Bachelor of Arts in Biology from Adrian College in 2017, where she received the college’s Student Development Award. She also participated in undergraduate biology and neurobiology research.

Following graduation, Katrina completed a clinical ophthalmic technician internship at Kellogg Eye Center at the University of Michigan and subsequently worked there as a Certified Ophthalmic Assistant. Her work included ophthalmic testing and procedures, patient care, assisting with clinical research, and helping train ophthalmic technician interns. She later continued her ophthalmic career at Associates in Ophthalmology before pursuing orthoptics.

In 2020, Katrina began her postgraduate orthoptic training at Children’s Eye Care of Michigan. During the two-year program, she received a 2021 FOREA Scholarship and earned her certification as an orthoptist in 2022. She has remained with Children’s Eye Care as a Certified Orthoptist since completing the program.

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Reviews for Dr. Rotberg

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5.0 average from 451 reviews

The aftermath of Thyroid eye disease left my inferior rectus muscle in my right eye so stiff, it made me look cockeyed. My self esteem was shot. No one would even look at me. I was so scared to get surgery. I keep putting it off.
S. H
He was awesome great with kids very understanding and not judgemental I’d recommend him to a friend of a child who needs eye care
Shelby L
Thank you Dr. Rao. This surgery was a long time coming, but you made it easy. I’m so glad that my eye doctor referred me to you. You are an amazing doctor. Thank you for correcting my lazy eye.
Karen R
Excellent; He was able to tell me why I was having double vision and schedule surgery for correction; Such a big relief to know I can get this taken care of; Thank you Dr. Rao !!!
Raylene J

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