Sir, Im just a little “older” than you. I have had the RK long ago then it was a dettached retina, cataract problems, cornal transplant, as well as lens implant. The one thing that I would stress is that “you” explain your sport to your doctor and, please give it some time to heal. Have a beer on the bank and get back when things are good and vision is improved. I know that surgury is rough, but let it heal, then get back in that boat and “kick ass”. I run my Puma as hard as that silly thing will go!Good Luck,Chuck Bumpilori