Will this improve bad case of myopia in adolescent?

This device improves depth perception, the ability of both eyes to focus at the same distance. Myopia is the inability to see beyond a given (near) distance. This may help improve myopia, but is not the intention. I use it to improve my focus n the front sight of my air rifle.

Will this exercise help achieve fusion if the eyes are slightly turned inwards, rather than outwards?

If you believe the research, based on how it works, all eye muscles should be strengthened. I bough it to help me to hopefully correct my blurred Red Dot. It took about 8 weeks before I noticed a change. Good Luck.

How long do you needto do this to get results?

I really don't know. I've been doing it for a few months--a regular, brief daily routine--along with remembering to be aware of seeing out of both eyes, rather than ignoring my lazy eye. Don't know how long it will take to get results -- but I think of the words of my meditation teacher when asked a similar question: "try it for a couple of years and see what you think . . ." Good luck and if it's not helping, check out the book, 'Fixing My Gaze'. There's some good information in there.

Does this fix eye asymmetry?

Hi, This product is intended for convergence training where the eyes work together to perform convergence at each bead.

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Brock String 10 Foot Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More!

Brock String 10 Foot Vision Convergence Training Tool - Train Vision, Improve Strength & Athletic Performance, and More!

Product ID: 59495572

Details

Brand
Brock String
Material
Plastic
Recommended uses for product
Exercise and
Special feature
Beaded
Target audience
Adult

🎯5 tightly fitted beads for targeted training

💪Enhances vision strength & athletic performance

📏10-foot precision length

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Bs.554

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Description

👁️‍🗨️ See the difference, own the game.

BOOST ATHLETIC EDGE - Clinically designed to improve eye strength and coordination for peak sports performance.
PROVEN USER FAVORITE - Rated 4.3 stars by 700+ users who swear by consistent use for real vision gains.
TRAIN WITH PRECISION - A full 10-foot string designed for mid-distance vision training—no compromises.
DURABLE LIGHTWEIGHT - Crafted with high-quality plastic for a sturdy yet featherlight training tool you can take anywhere.
TARGETED BEAD PLACEMENT - Five securely fixed beads create measurable focus points to sharpen your convergence skills.

The Brock String 10 Foot Vision Convergence Training Tool is a professional-grade eye exercise device featuring a durable 10-foot string with five fixed beads. Designed to improve convergence insufficiency, vision strength, and athletic performance, it’s lightweight and highly rated by users committed to enhancing their visual skills.

Specifications

ASIN	B01MEFCDD1
Best Sellers Rank	54,234 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 13 in Bowstrings
Brand	Brock String
Brand Name	Brock String
Colour	White
Customer Reviews	4.3 out of 5 stars 723 Reviews
Grip Material	Plastic
Handle Material	Plastic
Handle material	Plastic
Item Length	10 Feet
Item Weight	0.02 Kilograms
Manufacturer	NeuroVision
Material	Plastic
Model Number	7.22512E+11
Other Special Features of the Product	Beaded
Part Number	7.22512E+11
Recommended Uses For Product	Exercise and Fitness
Recommended uses for product	Exercise and Fitness
Special feature	Beaded
Target Audience	Adult
Target audience	Adult
UPC	722512368781 860007923081
Unit Count	1.0 count

Reviews

S**O

A good length of string.

Broc strings require patience and consistency of use. This one, unlike most on the market, is actually of a decent length, long enough for those of us training our eyes to see at mid-distance. One word of caution: don't be tempted to remove or rearrange the balls, as it is almost impossible to thread them back on the string. Good value. Give it a try!

1.09.2025

F**S

…

Bom

6.06.2026

A**N

Disappointing

Instructions were not included as specified in the product details. Disappointing

9.05.2025

W**N

Troppo caro per un cordino e 5 pallini di plastica colorata

È utile ma vale un decimo del prezzo che l'ho pagata. Potete farvela da soli

7.12.2025

A**E

Fehlerhafte Beschreibung und irreführende Produktbilder

Keine Anleitung wie in der Beschreibung dabei gewesen. Auch waren nur 3 Perlen mit dabei und keine 5 wie auf den Abbildungen.

23.06.2026

B**R

Overpriced for a string & 5 beads

Beads unfixed. No loop for fixing or holder. Just a piece of string and 5 beads. Disappointing.

10.02.2024

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TrustScore 4.5 | 7,300+ reviews

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Bs.554

Duties & taxes included

In stock

Sold byAmazon BoliviaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Bolivia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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