Brock String 6 Foot with 3 Beads - Vision Convergence Training - Convergence Insufficiency Tool - Train Vision, Athletic Performance, and More!

I received one of these years ago from an eye doctor, but it got misplaced during our move. Wanted to replace it. It's a very simple device, but it really works to correct vision problems.

I had ordered this to try my own vision therapy. This 6 foot seemed to be the most common to use with the 3 beads. Before I received it I had went to a Physical therapist for Vestibular training and she was going to show me how to make one these from supplies from a local store. I was one ahead. This is well made, sturdy string, beads do not slide own their own. Very pleased with the purchase. Wish it had a hook or magnetic on the one end but, I am going to buy one and attach it.

The Brock string significantly improved my ability to converge my eyes to reduce/almost eliminate double vision. Find that i need to use it regularly to keep convergence stable. Otherwise, lazy eyes will not want to focus easily.

Following a concussion, one of my eyes wouldn't converge to focus on items. We used Brock string in physical therapy and I decided to get one for home so I could continue working on rehab while not at physical therapy. It worked great! I attached one end to a door knob and held the other end.

Product as described.

Works as expected

This product is great for treating patients with problems with vergence. The different colors and bead types also allow me to communicate more effectively with my patients. Recommend that vestibular and concussion therapists have one on hand to augment their therapies.

Works good.