Strabology, a COP9 speciality

Strabology is a specialty of ophthalmology, which COP9 takes care of.

With Dr Stéphanie Zwillinger and her team of orthoptists, you will have access to personalized monitoring from a very young age. But moreover, you can also take advantage of our blog article which gives you additional information! What is strabology? How to take good care of it? Are there any treatments?

Continue reading to better understand and act on strabismus!

What is


Strabology is a specialized branch of ophthalmology that focuses on eye positioning disorders, more commonly called strabismus.


A strabismus is characterized by an abnormal deviation of one or both eyes, leading to poor coordination of eye movements and impaired binocular vision. Binocular vision is the result of the convergence of the visual axes of the two eyes on the same fixation point. It allows you to have relief vision and an accurate perception of distances.





When an individual has strabismus, the visual axes of the two eyes are not aligned and do not converge properly, resulting in double, blurred, or distorted vision.

Why consult

in strabology?

It is important to consult a strabologist to find out what type of strabismus concerns you. Indeed, strabismus can be of different types.


Those types are, in particular:


  • convergent strabismus, where the deviated eye is oriented inwards;

  • divergent strabismus, where the deviated eye is oriented outward;

  • vertical strabismus, where the deviated eye is oriented upwards or downwards;

  • torsional strabismus, where the deviated eye rotates.


Consulting in strabology also allows you to know the cause(s) of your strabismus. They can be varied:


  • of neurological origin, with damage to the optic nerve or oculomotor muscles;

  • of visual origin, with an ocular pathology such as cataract, glaucoma, retinopathy or macular degeneration (AMD).

  • congenital, that is to say present from birth;

  • acquired following ocular trauma;

  • linked to a refractive disorder such as myopia, hyperopia or astigmatism;

  • due to paralysis of the oculomotor muscles.


COP9 management in strabology

The management of patients with strabismus requires an accurate assessment of the ocular condition by your ophthalmologist.

This may include eye examinations such as measuring visual acuity, refraction, visual field exploration, retinal angiography or even functional explorations.

Orthoptic assessments are carried out by our orthoptists to assess ocular motor skills and binocular vision.

These examinations and assessments then allow us to offer you an adapted personalized treatment in our COP9 office in orthoptics but also in psychomotor skills.

They also work in collaboration with other specialists, such as neurologists, pediatricians or opticians, to ensure comprehensive and multidisciplinary care for patients with strabismus.

What are the

strabology treatments?

Depending on the type and severity of strabismus, different treatments may be considered.


They can be medical (prescription of eye drops, contact lenses, eye patch, etc.) or surgical, with the performance of an intervention on the oculomotor muscles or refractive surgery.


Orthoptics and visual rehabilitation sessions are often necessary to improve the coordination of eye movements and promote stable binocular vision.


It is important to emphasize that strabology is a complex medical specialty that requires specific expertise: Dr Stéphanie Zwillinger specializes in pediatric ophthalmology, do not hesitate to meet her in her COP9 office.

Our team of professionals, made up of an ophthalmologist, orthoptists and psychomotor therapists, has the necessary knowledge to make the diagnosis and implement appropriate treatment.

In conclusion

Strabology is a branch of ophthalmology dedicated to the study and treatment of eye positioning disorders. It aims to improve the coordination of eye movements and promote stable binocular vision.


Thanks to medical and surgical advances, many therapeutic solutions are now available to help people suffering from strabismus improve their vision and quality of life.

To discover

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