Brock String Vision Training Tool | 3 Beads Binocular Exercise Vision Training Tool QXL Default Title

Brock String Vision Training Tool | 3 Beads Binocular Exercise

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$20.31 $24.42
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Brock String Vision Training Tool | 3 Beads Binocular Exercise Vision Training Tool QXL Default Title
  • Brock String Vision Training Tool | 3 Beads Binocular Exercise Vision Training Tool QXL Default Title
  • Brock String Vision Training Tool | 3 Beads Binocular Exercise Vision Training Tool QXL
  • Brock String Vision Training Tool | 3 Beads Binocular Exercise Vision Training Tool QXL
  • Brock String Vision Training Tool | 3 Beads Binocular Exercise Vision Training Tool QXL
  • Brock String Vision Training Tool | 3 Beads Binocular Exercise Vision Training Tool QXL
  • Brock String Vision Training Tool | 3 Beads Binocular Exercise Vision Training Tool QXL
  • Brock String Vision Training Tool | 3 Beads Binocular Exercise Vision Training Tool QXL Default Title
  • Brock String Vision Training Tool | 3 Beads Binocular Exercise Vision Training Tool QXL
  • Brock String Vision Training Tool | 3 Beads Binocular Exercise Vision Training Tool QXL
  • Brock String Vision Training Tool | 3 Beads Binocular Exercise Vision Training Tool QXL
  • Brock String Vision Training Tool | 3 Beads Binocular Exercise Vision Training Tool QXL
  • Brock String Vision Training Tool | 3 Beads Binocular Exercise Vision Training Tool QXL
Brock String Vision Training Tool | 3 Beads Binocular Exercise

Brock String Vision Training Tool | 3 Beads Binocular Exercise

$20.31 $24.42
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Brock String Vision Training Tool – 3 Beads, 260cm Cord

The Brock String is a classic, optometrist-recommended vision training tool designed to develop stronger binocular function — helping both eyes work together more accurately. Whether you're working with a vision therapist, a sports performance coach, or doing at-home eye coordination exercises, this lightweight, easy-to-use string-and-bead tool is a trusted training essential.

What Is a Brock String?

A Brock String is a long cord fitted with three colored beads. By holding one end of the string to the tip of your nose and anchoring the other end to a fixed point, you can perform structured focusing drills that train your eyes to converge accurately on a target — a skill critical for reading, sports, and everyday visual tasks.

Key Benefits

  • Develops binocular coordination — trains both eyes to point accurately at the same target simultaneously
  • Improves convergence ability — ideal for vision therapy exercises targeting eye teaming and focusing
  • Sports vision training — used by athletes to sharpen targeting, depth perception, and visual tracking
  • Portable & lightweight — comes with a carry case so you can train anywhere
  • Suitable for all ages — commonly used in occupational therapy, sports training, and home vision programs

Product Specifications

  • Bead diameter: 1.8 cm (0.7")
  • Rope length: 260 cm (102")
  • Beads included: 3
  • Package includes: 1 × cord, 3 × beads, 1 × carry case
  • No batteries required
  • Made in Mainland China

How to Use

  1. Tie one end of the string to a fixed point (door handle, chair, or wall hook) at eye level.
  2. Hold the other end lightly against the tip of your nose.
  3. Space the three beads along the cord at varying distances (e.g. 30 cm, 60 cm, and 100 cm).
  4. Focus on each bead in turn — when both eyes are working together correctly, you will see the string form an "X" shape at the bead you are focusing on.
  5. Practice shifting focus from bead to bead to build convergence and eye-teaming skills.

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Note: Due to lighting conditions and monitor display variations, bead colors may appear slightly different from the actual product. Measurement tolerance is ±1–3 cm.

Learn more: National Eye Institute on eye health

Frequently Asked Questions

Q: What is the Brock String vision training tool used for?

A: The Brock String is used to develop binocular vision function — specifically training both eyes to converge accurately on a target. It is commonly used in vision therapy programs, sports performance training, and home-based eye coordination exercise routines to improve eye teaming and focusing ability.

Q: Is the Brock String suitable for children as well as adults?

A: Yes. The Brock String is suitable for users of all ages. It is frequently used by both children and adults in vision therapy, occupational therapy, and sports training settings. Always follow the guidance of a qualified vision therapist or optometrist for a structured program.

Q: What is included in the package?

A: The package includes one 260 cm (102") cord, three colored beads (1.8 cm diameter each), and one carry case — everything you need to begin practicing binocular coordination exercises right away.

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