try fiberoptics yet?? i definently believe i need glasses or something but havent got around to going in the 2 years ive been noticing i need something to help my eyes....never shot much open sights...some assult rifles...22s...pistols...but my accuracy guns are scoped....the ones i care a whole lot where my bullets are going....i used to shoot open sights better then a scope...but in the recent years i just blamed the guns...but its my eyes...i bought a flintlock last summer and couldnt see my sights for poop and i noticed..the metal all blurred together and made it hard to shoot.....switched to fiber optics this year and im shooting it like a champ.....maybe find a gun with fiberoptics and see if it will help you......its not a GREAT fix....hear the best fix is to have the rear sight moved forward or backward depending on your eyes....but the fiberoptics give you 2 colors to see....and they dont tend to blurr together like all iron was doing to me......helped me out.....good luck....ps..im 17!!!!!!!!