Convergence Insufficiency: A Guide to Diagnosis and Treatment

Convergence Insufficiency (CI) is a common yet frequently undiagnosed eye condition that affects how well your eyes work together to focus on nearby objects. This can lead to symptoms such as double vision, headaches, and difficulty concentrating on tasks that require near vision, such as reading or using a computer. Our guide will provide an overview of convergence insufficiency, its symptoms, diagnosis, and treatment options, helping you understand this condition and explore effective treatment strategies.

For more information, you can download our comprehensive brochure on convergence insufficiency by clicking here.

What is Convergence Insufficiency?

Convergence insufficiency is a binocular vision disorder in which the eyes struggle to work together to focus on close-up tasks. Normally, both eyes should converge, or turn inward, to focus on a nearby object. However, in individuals with CI, the eyes tend to drift outward, causing one eye to do most of the focusing work. This misalignment results in symptoms like double vision and blurry vision.

Key Symptoms of Convergence Insufficiency

• Double Vision: Difficulty keeping both eyes aligned on a single object.
• Headaches: Often occurring after prolonged periods of near work.
• Eye Strain: Soreness or discomfort around the eyes during or after activities like reading.
• Difficulty Concentrating: Struggling to maintain focus on tasks requiring close vision.
• Poor Depth Perception: Challenges in judging distances accurately.

Individuals with CI may frequently tilt their heads, use a finger to keep their place while reading or avoid activities that require near focus.

Causes and Risk Factors

The exact cause of convergence insufficiency is unknown but is believed to result from poor coordination between the eye muscles and nerves. Certain factors, such as a history of brain injury, even prolonged screen time, or conditions affecting the nervous system, can increase the risk of developing CI​.

Diagnosing Convergence Insufficiency

CI is diagnosed through a functional visual evaluation by a developmental optometrist. Standard eye exams or vision screenings may not detect this condition, so specialized tests that assess the ability of the eyes to converge on near object

s are necessary. These tests measure the eyes’ convergence amplitude and the ability to maintain alignment during close tasks​.

Treatment Options for Convergence Insufficiency

Vision Therapy

The most effective treatment for CI is vision therapy. This involves a series of exercises designed to

improve the coordination and convergence of the eyes. Vision therapy can be performed in-office with a vision therapist and reinforced with at-home exercises. Common exercises include:

• Pencil Push-Ups: Focusing on a pencil as it is slowly moved towards the nose.
• Computer-Based Exercises: Using specialized software to guide eye movements and improve focus.
• Depth Perception Training: Practicing activities that enhance the eyes’ ability to judge distances accurately​.

Prismatic Glasses

In some cases, prismatic glasses may be

prescribed. These glasses help redirect light entering the eyes to compensate for the misalignment caused by CI. While they can alleviate symptoms, they are not a cure and do not address the root issues of poor eye coordination​.

Schedule Your Functional Visual Evaluation Today

Convergence insufficiency is a manageable condition with the right diagnosis and treatment plan.

If you or your child experiences symptoms of CI, it’s essential to seek a functional visual evaluation to explore effective treatment options.