Sports Brock String - Vision Convergence Training - Convergence Insufficiency Tool - Train Vision, Athletic Performance, and More! by NeuroVision

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.