Interesting article.. When I stopped using my Sonicare my hyperacusis problem improved and I have less pain in my ears now from noise. No improvement in my vision but it might be worth a shot to do a manual only brushing trial if you use electric currently. Those vibrations travel very easily along the bones of your face. The nerves in my mouth and face were so numbed by this toothbrush that if I try to use it now it feels like I did when I first started using it - like someone is drilling into my head.
I often feel like I am paranoid and into psuedo scientific stuff when I try and find solutions to the problems with my eyes. We are told LED is completely safe but we know it's not so the scientific consensus can't always be trusted, especially where big money get involved.