You say limitation, I say underaction - the assessment of incomitant and concomitant deviations in practice

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About the session

CPD ref: C-108307


This practical session will explore the methods used to assess binocular vision conditions, in particular those used to differentiate between incomitant and concomitant deviations. During the session, delegates will have the opportunity to test a variety of patients with both concomitant and incomitant binocular vision disorders, under the supervision of orthoptists.

Target audience

  • Optometrist.

Domains and learning outcomes

Clinical practice

s.5 Keep your knowledge and skills up to date

  • Able to carry out an accurate cover test and motility assessment.

s.7 Conduct appropriate assessments, examinations, treatments and referrals

  • Able to differentiate between concomitant and incomitant deviations and understand the influence this may have on management and referral.


Simon Frackiewicz BSc MCOptom DipTp(IP)

Simon is an optometrist and orthoptist working in community optometry and the Hospital Eye Service.

He has delivered numerous lectures and workshops for the College and aims to demystify the subject of binocular vision.