Eye strain on long rides.

[arendoog]

Like any other muscle in the body your ciliary muscle that regulates your accomodation gets tired or fatigued after hours of looking far and near without rest .especially if you are riding tecknical terrian .The other problem is that you are looking forward with your head down .Normal living and working rarely puts you in such a posture .Then there is the the air blowing away your tearfilm and the debri allergens sweat ext .No pair of riding glasses will help with all of that .Stay hydrated ,wear a buff or sweatband .Glasses that surround your eyes and whenyou get to a flat stretch of road ,sit up and look far ahead instead of looking at the road