Convergence insufficiency

> Service Detail

What Is Convergence Insufficiency?

Convergence insufficiency is a vision condition where the eyes have difficulty working together to focus on nearby objects. This causes one eye to drift outward. Symptoms include double vision, eyestrain, headaches, and trouble concentrating during close work. 

Treatment involves convergence exercises, prism lenses, and vision therapy to improve eye coordination. Improving our eyes’ convergence amplitude and stamina allows for a child to improve their near reading tasks as they eyes are able to coordinate better together during near visual tasks.

What Is The Difference Between Convergence Insufficiency And Exotropia?

Convergence insufficiency causes an outward eye drift or exotropia only when focusing on near objects. The eyes would straighten normally when looking at distant things. A individual with exotropia presents with an outward eye drift the whole time and this is different for an individual with convergence insufficiency, which only manifest with an eye turn only at near. In some cases, it may not be possible to see an eye turn as both eyes struggle to hold one singular binocular vision. Symptoms of eye strain, double vision, and trouble concentrating arise during reading or close work when eye teaming starts to break down.

What Are The Symptoms Of Convergence Insufficiency?

Common symptoms of convergence insufficiency include double vision, blurry vision, eyestrain, and headaches when doing near work. Patients also have trouble concentrating during activities like reading, using computers, or studying. Words may appear to move around on the page. Some people squint or close one eye to relieve discomfort when reading or looking at things up close.

Symptoms can vary in presentation and severity. Diagnosing this issue allows for tailored treatment to improve eye coordination and relieve associated frustration.

How Should A Patient Be Tested For Convergence Insufficiency?

Diagnosing Convergence Insufficiency

Convergence insufficiency is diagnosed by eye care specialists including ophthalmologists, optometrists, and orthoptists. They take a history of the patient’s symptoms and measure convergence ability – how well the patient can turn their eyes inward without double vision.

Key tests include:

  • Near point of convergence: The closest point a person can focus before seeing double.
  • Fusional vergence amplitude: The amount of prism placed before the eyes that causes double vision.

Additional tests may assess focusing ability, check for refractive errors (need for glasses), or eye misalignment. The results guide treatment recommendations for bothersome visual symptoms caused by convergence problems.

Does Every Patient With Convergence Insufficiency Need Treatment?

Treatment Considerations for Convergence Insufficiency

Treatment for convergence insufficiency is only required if bothersome symptoms like double vision, headaches, or difficulty concentrating during near work are present. Some patients show convergence weakness on testing but are asymptomatic.

A routine eye exam may reveal convergence problems even without symptoms. False positive findings can occur if the patient is distracted, does not understand test instructions, or has anxiety in the exam room setting. These patients do not require treatment, but should be monitored over time for any new issues with focusing or eyestrain during reading or other near tasks.

Alternatively, children may showcase adequate convergence ability during standardized testing, yet still experience problematic symptoms in school or home environments. A therapeutic trial for convergence weakness can be considered for these children to evaluate if their visual complaints improve.

In summary, the necessity for convergence insufficiency treatment depends on the patient’s symptoms rather than test measurements alone. Close follow-up allows eye care specialists to determine which individuals need vision therapy, exercises, or prisms to alleviate discomfort and impairment related to convergence dysfunction.

How Is Convergence Insufficiency Treated?

Treating Convergence Insufficiency in Children

Convergence insufficiency can often be treated in children with targeted convergence exercises to train the eyes to turn inward properly. Common options include:

  • Home computer programs with tracking to monitor progress.
  • In-office vision therapy therapy.

A short course of consistent convergence training, whether home or office-based, typically helps improve test measurements and the child’s visual symptoms.

Is Convergence Insufficiency Treatment Always Successful?

Most convergence insufficiency cases can be successfully managed with nonsurgical treatments like vision therapy and prism glasses.

Are There Other Vision Problems Seen In Patients With Convergence Insufficiency?

Convergence insufficiency can occur in those with healthy vision. But testing often reveals an impaired ability to focus eyes individually at near – termed accommodative dysfunction.

While convergence coordinates eye alignment, accommodation controls focusing light on the retina for clear near vision. Dysfunction in either can undermine activities like reading.