Concomitant Strabismus (Strabismus): Diagnosis and Treatment

Concomitant strabismus is noticeable not only externally. One eye deviates from the common visual axis, and the brain no longer receives two coordinated images. In children, this can lead to amblyopia, and in adults, visual discomfort and double vision. The sooner an ophthalmologist determines the cause and angle of strabismus, the more accurate the correction can be.

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What is concomitant strabismus?

Concomitant strabismus is a form in which the deviation of the eye persists in different directions of gaze. Visual movement is usually unrestricted. Strabismus can be:

  • Convergent
  • Divergent
  • Vertical
  • Mixed

The doctor evaluates not only the external sign but also the functioning of both ocular systems.

How binocular vision is impaired

Binocular vision allows the brain to combine images from both eyes into a single three-dimensional picture. With strabismus, one image may be suppressed. This occurs to prevent double vision. In children, this suppression can lead to amblyopia—decreased vision in the "weak" eye.

That is why strabismus treatment should not be delayed until school age, simply in the hope that the child will outgrow the problem. Diagnosis is also important for adults. Sudden eye deviation may be due to neurological or vascular causes.

What is concomitant strabismus?

Why does concomitant strabismus occur?

Why does concomitant strabismus occur?

Strabismus in children is often associated with refractive errors, a hereditary predisposition, hyperopia, astigmatism, amblyopia, and oculomotor muscle dysfunction. The child may not complain, as their brain quickly adapts, thereby suppressing the image from the deviating eye.

Causes in Adults

Strabismus in adults can occur in childhood or develop later. If the deviation occurs suddenly, especially with double vision, pain, weakness, or speech impairment, an urgent examination is necessary. The doctor must rule out not only ophthalmological but also neurological causes.

Risk Factors and Precipitating Conditions

Risk factors include high farsightedness, refractive error differences between the eyes, trauma, previous surgeries, neurological diseases, and prematurity. The causes of concomitant strabismus are assessed comprehensively, because one external sign may have different mechanisms.

How does concomitant strabismus manifest itself?

Symptoms of concomitant strabismus include a deviation of one eye toward the nose, temple, or upward or downward. The patient may squint or tilt their head. Sometimes, they close one eye in bright light. Adults often experience double vision. Children experience visual discomfort without any obvious complaints.

When to see an ophthalmologist

A vision check is recommended for any persistent deviation of the eye, complaints of double vision, fatigue, or suspected amblyopia. At K+31, an ophthalmological examination helps determine the type of disorder a patient has and whether strabismus correction is necessary.

Five signs that indicate a vision check:

  • The eye moves toward the nose or temple
  • The child squints or tilts their head
  • Double vision appears
  • Eyes tire quickly when reading
  • The image appears blurry or unstable

If the symptom recurs, it's best not to wait. Early diagnosis of concomitant strabismus helps preserve more options for correction.

Signs in Children

Parents notice that the eye moves to the side in photographs. Child:

  • Tilts head
  • Gets tired quickly when reading
  • Has poor spatial orientation

Strabismus in children should be examined by a pediatric ophthalmologist as early as possible to assess the risk of amblyopia and binocular dysfunction.

Signs in adults

In adults, strabismus may be accompanied by double vision, headache, fatigue, and difficulty working with small details. If the symptom appears suddenly, diagnosis should be prompt. Scheduled monitoring is only appropriate for stable, long-standing conditions.

General information

How is the diagnosis performed?

Visual examination and testing

The ophthalmologist checks the visual acuity of each eye, assessing refraction, eye position, and fixation. Children are examined carefully, taking into account their age and ability to cooperate. If necessary, drops are used to accurately assess refraction.

Determining the angle of strabismus and assessing binocular vision

The angle of strabismus is measured using special methods. The doctor also evaluates the presence of binocular vision, how the brain combines images, and whether one eye is suppressed. These data determine whether occlusion, hardware treatment, spectacle correction, or surgery is necessary.

Hardware examination methods

Hardware methods help clarify visual functions, fusion reserve, and the functioning of the oculomotor system. They don't replace a physical examination, but they provide additional information for a personalized plan. In complex cases, the doctor may refer you for additional diagnostics.

How is the diagnosis performed?

Treatment and Correction Methods

Treatment of concomitant strabismus is a step-by-step process. The doctor considers the patient's age, cause, angle of deviation, amblyopia, refraction, and readiness for regular monitoring. There is no one-size-fits-all method.

Eyeglasses or Contact Lenses

Eyeglasses are helpful if strabismus is associated with hyperopia, astigmatism, or another refractive error. Sometimes properly fitted glasses can reduce the angle of deviation. Contact lens correction is considered based on indications and after an ocular assessment.

Occlusion and Orthoptic Techniques

Occlusion is used when there is a risk of amblyopia: the dominant eye is temporarily closed to stimulate the weaker eye. Orthoptic treatment and pleoptics help develop visual function if prescribed by a doctor. Self-guided exercises without diagnostics do not produce predictable results.

Hardware Treatment

Hardware treatment is used as part of a program, not as a standalone "universal procedure." The goal is to train binocular functions, improve visual stability, and support the weaker eye. The effect is assessed dynamically.

Surgical Correction: When It's Needed

Surgical correction is considered for severe or persistent deviations when conservative methods are insufficient. The surgery changes the balance of the extraocular muscles and the position of the eyes, but the decision is made on an individual basis. After the intervention, monitoring and functional rehabilitation may be required.

Methods for Correcting Concomitant Strabismus

Method When used What it provides Features
Glasses For refractive errors Improves focus Can be the first stage of treatment
Occlusion For amblyopia risk Stimulates weak Eye Prescribed by a doctor
Hardware treatment As indicated Helps develop binocular functions Effective as part of a program
Surgical correction For severe deviations Corrects eye position The decision is made individually

"In our practice, we always begin with an accurate diagnosis of the angle of strabismus and an assessment of binocular vision. This allows us to select not a one-size-fits-all solution, but a truly effective one for the individual patient." — ophthalmologist

Treatment and Correction Methods

Why is it important to treat concomitant strabismus promptly?

The dangers of lack of treatment?

Without correction, binocular vision may decline, amblyopia may develop, and cosmetic defects and visual discomfort may persist. In children, prolonged suppression of one eye affects the development of the visual system. In adults, constant double vision interferes with work and orientation.

How early treatment affects the outcome?

Early treatment does not guarantee the same outcome for everyone, but it gives the doctor more options. It is possible to promptly select glasses, begin pleoptics, assess the need for surgery, and monitor progress. The longer the disorder remains untreated, the more difficult it is to restore function.

Why is it important to treat concomitant strabismus promptly?

How is the treatment plan developed?

The treatment plan for concomitant strabismus usually doesn't take a single visit. First, the doctor collects data: visual acuity, refraction, angle of strabismus, binocular function, and the presence of amblyopia. Then, the doctor explains the first step and the signs that it's working.

Sometimes, treatment for concomitant strabismus begins with glasses and observation. Sometimes, occlusion, hardware software, orthoptic treatment, or surgical correction are required, depending on the indications. The transition from one stage to the next depends on the outcome, not on a desire to complete treatment more quickly.

Why do children need regular monitoring?

As a child's visual system develops, monitoring is more important than a one-time consultation. The doctor monitors the angle of strabismus, whether visual acuity in the weak eye is improving, and whether stable binocular vision is developing. If there is no improvement, the plan is adjusted.

What's Important for Adult Patients

In adults, double vision, visual discomfort, and cosmetic concerns often come to the fore. But even in this case, a complete diagnosis is essential: it's important to understand whether the disorder is related to a long-standing problem, recent paresis, trauma, or refractive error. The safety of treatment depends on this.

How is the treatment plan developed?
Treatment limitations and expectations

Treatment limitations and expectations

We discuss with the patient in advance that the outcome depends on age, duration of strabismus, the condition of the retina and optic nerve, amblyopia, and the preservation of binocular function. We can't promise the same results for everyone. However, we can honestly define the goal: improve eye alignment, reduce discomfort, maintain visual function, and choose a realistic plan.

This conversation is especially important for parents. Treatment requires family involvement: adherence to the occlusion regimen, attendance at device sessions, wearing glasses, and continuing follow-up after initial improvements. The doctor helps organize this process without pressure or unnecessary promises.

Frequently Asked Questions

Is it possible to treat concomitant strabismus without surgery?

In some cases, glasses, occlusion, hardware, and orthoptic methods can help. Treatment depends on the cause, angle of strabismus, and age of the patient.

How does concomitant strabismus differ from regular strabismus?

It is a common type of strabismus, in which the angle of deviation is usually the same when looking with both the right and left eyes. The exact type is determined by an ophthalmologist.

Do exercises and hardware treatment help?

Yes, but only as part of an individually tailored program. Self-guided exercises without diagnosis do not produce predictable results.

What happens if concomitant strabismus is left untreated?

Without correction, binocular vision may decrease, the risk of amblyopia increases, visual discomfort may develop, and a permanent cosmetic defect may develop.
Results and recommendations of the specialist

Concomitant strabismus requires a precise examination, not guesswork. Make an appointment with "K+31" if you notice an eye deviation in a child or adult. An ophthalmologist will assess the cause and angle of the squint and offer a correction plan without standard prescriptions.

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I was lucky to get an appointment with ophthalmologist E. M. Rudkovskaya, a pleasant and responsive person, an excellent specialist who explains in detail all the subtleties of examinations and treatment. Thank you so much, Elena Mikhailovna!
28.07.2026
Nadezhda A.
The reception was held at the highest level. I liked everything. The doctor is simply the best ophthalmologist in Moscow. The communication was pleasant, I listened to everything, conducted research and made recommendations. I'll come back more than once.
28.07.2026
Andrey P.

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Rytik Nina Petrovna

Very pleasant Dr. Shamsetdinova L.T.
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Everything is fine. She conducted a number of studies, listened attentively, was very pleasant in communication, explained everything clearly. I am satisfied.
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Svetlana S,
A great professional doctor, responsive, thoughtful, positive, attentive to the patient.
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Aleksandr K.
I signed up for a check-up and accidentally got to Azalea Azatovna and I am very happy that I got to her! He is a very sensitive and attentive doctor, the operation to restore vision was excellent and easy, for which thank you very much! After the operation, I realize that I shouldn't have waited and feared so much, with such a professional in his field, nothing is scary!thank you very much!!!
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Irina S,
The reception was professional and unobtrusive. Additional examinations and diagnostics were carried out using modern equipment. During the consultation and examination, Polina Dmitrievna explained everything in detail and intelligibly, gave me clear recommendations, and answered all questions in detail. Polina Dmitrievna is a polite, attentive and simply amazing doctor. The clinic as a whole enjoys the atmosphere, responsiveness of the staff and the professionalism of the specialists.
11.07.2026
Nikolay K.
Rudkovskaya E.M. is an excellent doctor, if you need an ophthalmologist, I go to her. A very competent specialist. Explains everything by diagnosis. Comprehensively evaluates the condition, checking all the parameters.
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Wonderful doctor!
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An excellent specialist. I am very pleased with the reception. Thanks to the doctor
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