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Brock String and Convergence Insufficiency

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Brock string and convergence insufficiency
Brock string and convergence insufficiency

The human visual system is a complex mechanism responsible for interpreting the world around us. However, just like any other system, it can encounter challenges and issues. One such problem is convergence insufficiency, a common vision disorder that affects many individuals.

Fortunately, there is an effective vision therapy tool known as the Brock String, which can significantly improve convergence insufficiency. In this article, we will explore what convergence insufficiency is, how it affects our vision, and how the Brock String can be a game-changer in overcoming this visual anomaly.

What is Convergence Insufficiency?

An inability or decreased ability to converge the eyes whilst focusing on near objects is described as convergence insufficiency.

The condition occurs when the eyes struggle to work together, causing one eye to drift outward when attempting to converge. Convergence is an important ability of both eyes to move inwards that allows us to maintain binocular vision whilst focusing on near objects.

Causes of Convergence Insufficiency

The exact cause of convergence insufficiency isn’t always clear. However, some factors may contribute to its development:
Genetics,
Eye muscle weaknesses, and
Excessive near work (such as extended screen time).

Convergence insufficiency often manifests during childhood and adolescence but can persist into adulthood if left untreated.

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Symptoms of Convergence Insufficiency

If convergence is insufficient, one will experience discomfort and eyestrain when performing near activities such as writing or reading.

Sometimes people can also experience headaches, fatigue and tension that often result in reading problems.

However, simple solutions such as vision therapy and tools like the brock string can potentially bring about a solution to these problems!

Pencil Push Up Exercises

The issue of convergence insufficiency has been known to mankind for almost two centuries. Therefore, several rather simple exercises, as well as certain complex computer-based ones, have evolved to deal with this rather frequent problem.

One of the more simple and most commonly used home-based exercises are pencil push-ups, during which the patient tries to maintain binocular single vision while moving the tip of the pencil slowly towards their nose. Although this exercise can be very effective in strengthening the ability to converge it is also extremely boring for the patients, especially the little ones.

Pencil push ups treat convergence insufficiency
Pencil push ups

Brock String Eye Exercises: Strength your Ability to Converge

The Brock String consists of a length of string or cord (usually about 10 feet long) with three to five beads or objects spaced along its length. The patient holds one end of the string close to their nose, while the beads are positioned at various intervals. By focusing on each bead, the eyes are forced to work together, improving convergence skills and strengthening the eye muscles.

A brock string is way more interesting and user-friendly preposition. Colored beads that can be moved closer and farther from the nose whilst they are being focused on are a powerful tool to tackle convergence insufficiency. According to several reports, such exercises can have as high as 80% success rate in alleviating the inability to converge properly – and while the brock string may look rather simple – it can provide for wonderful improvements.

Brock string is a powerful tool for treating convergence insufficiency.
AmblyoPlay Brock String

How the Brock String Works

  1. Near Point Convergence: When focusing on the bead closest to the nose, the eyes must converge properly to keep the bead single and clear. This exercise helps to develop and strengthen the ability to maintain clear and single vision up close.
  2. Mid-Point Convergence: Shifting focus to a bead in the middle of the string challenges the eyes to converge at a moderate distance. This exercise further enhances the coordination between the eyes and reinforces the convergence skill.
  3. Far Point Convergence: By looking at the bead farthest from the nose, the eyes converge at a greater distance, promoting the development of convergence skills at various visual distances.
  4. Tracking Movements: The Brock String can also be used to train smooth tracking movements. By following the beads as they move closer or farther away, the eyes learn to coordinate and follow objects seamlessly.

Brock String Effectiveness

The effectiveness of the Brock String as a vision therapy tool for convergence insufficiency and related visual conditions has been well-documented and widely recognized by eye care professionals.

Many studies and clinical experiences have shown positive outcomes when using the Brock String as part of a comprehensive vision therapy program. However, it’s important to understand that the effectiveness of any vision therapy tool, including the Brock String, can vary depending on several factors, including the severity of the condition and the individual’s compliance with the therapy.

  1. Research Studies: Several research studies have investigated the efficacy of the Brock String in improving convergence insufficiency and other binocular vision disorders. While the specific results may vary across studies, overall, the Brock String has demonstrated significant improvements in convergence abilities and eye coordination.
  2. Vision Therapist Expertise: The success of any vision therapy largely depends on the expertise of the vision therapist. A skilled and experienced therapist can customize the therapy sessions, including the use of the Brock String, to address the individual’s specific needs and monitor progress effectively.
  3. Compliance and Consistency: Like any therapeutic program, consistent and dedicated practice is crucial for achieving positive results. Individuals who diligently follow the prescribed vision therapy exercises, including regular use of the Brock String, are more likely to experience better outcomes.
  4. Severity of the Condition: The effectiveness of the Brock String and vision therapy, in general, can also be influenced by the severity of the convergence insufficiency or binocular vision disorder. Mild to moderate cases may respond well to vision therapy, while more severe cases might require additional or different interventions.
  5. Individual Variability: Each person’s visual system is unique, and responses to therapy can vary from one individual to another. Some may experience rapid progress, while others may require more time and effort to achieve desired results.

Brock String Instructions

Exercise 1: Near Point Convergence

  1. Hold one end of the Brock String close to the tip of your nose with the beads hanging down.
  2. Focus on the bead that is closest to your nose.
  3. Keep your eyes fixed on the bead and try to see it as a single, clear image. You may notice that you see two or more beads initially.
  4. Slowly move the bead closer to your nose while maintaining your focus on it.
  5. Continue moving the bead closer until you can see it as a single, clear image without any double vision.
  6. Hold the converged position for a few seconds, ensuring the bead remains clear and single.
  7. Move the bead back to its original position and repeat the process for 10-15 repetitions.

Exercise 2: Mid-Point Convergence

  1. Hold one end of the Brock String close to the tip of your nose with the beads hanging down.
  2. Focus on the bead that is in the middle of the string.
  3. Follow the same steps as in Exercise 1, slowly moving the bead closer to your nose while maintaining clear, single vision.
  4. Move the bead back to its original position and repeat the process for 10-15 repetitions.
Brock String Eye Exercises

Exercise 3: Far Point Convergence

  1. Hold one end of the Brock String close to the tip of your nose with the beads hanging down.
  2. Focus on the bead that is farthest from your nose (at the other end of the string).
  3. Follow the same steps as in Exercise 1 and 2, slowly moving the bead closer to your nose while maintaining clear, single vision.
  4. Move the bead back to its original position and repeat the process for 10-15 repetitions.

Exercise 4: Rocking the String

  1. Hold one end of the Brock String close to the tip of your nose with the beads hanging down.
  2. Focus on the bead closest to your nose and make it a single, clear image.
  3. Now, shift your focus to the next bead along the string (farthest from your nose) and make it a single, clear image.
  4. Continue to shift your focus back and forth between the two beads, making each one clear and single.
  5. Repeat this process for 10-15 repetitions.

Exercise 5: Circular Movement

  1. Hold one end of the Brock String close to the tip of your nose with the beads hanging down.
  2. Focus on the bead closest to your nose and make it a single, clear image.
  3. Start moving the bead in a circular motion, either clockwise or counterclockwise.
  4. Follow the bead’s movement with your eyes, maintaining clear, single vision as it goes around in a circle.
  5. Complete several rotations and then switch the direction of the circular motion.
  6. Repeat this exercise for 10-15 repetitions in each direction.

Conclusion

Provided that you have kids with these very problems, perhaps accompanied by various degrees of amblyopia, do not hesitate, and offer them our excellent products available here.  Vision development is a complex process, but with diligent exercise, we can correct and steer it in the right direction. And as with many things – usually some quite simple solutions, such as the brock string, might just do the trick!

Frequently Asked Questions

What is the purpose of brock string?

A Brock String has colored beads on a string. By focusing on specific beads, you can train your eyes to work together. It helps improve eye coordination and tracking skills.

Can you explain the concept of convergence and divergence with the brock string?

Convergence is when both eyes turn inward to focus on a nearby object, making beads appear closer. Divergence is when both eyes turn outward to focus on a distant object, making beads seem farther apart. The Brock String helps practice these skills for better eye coordination.

How long should one use a Brock String in a vision therapy session?

The duration of a Brock String session in vision therapy can vary depending on an individual’s needs and goals. Generally, vision therapists may recommend sessions lasting anywhere from 5 to 20 minutes, multiple times a day or as prescribed by a professional. The frequency and duration of use may be adjusted over time to match the progress of the individual. It’s essential to follow the guidance of a qualified vision therapist or optometrist for personalized recommendations.

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Why Do We Suggest a Minimum Time of 6 Months for Success?

Based on the data from over 15,000 patients using AmblyoPlay, improvements start within 4 months, while optimal results take anywhere between 6-18 months on average. The duration of required training depends on the patient’s age, the severity of the problem, accompanying diseases, and adherence to the training program.