i guess i am showing my age a bit here but i will ask/tell. if by progressive you mean bifocals......... then yes i was put into a pair of them last season(small game) i hunt tree rats in the early season with my 410 open sight and from the first day i found myself trying to move(adjust) my head to get a better sight. head back i could see the sight. head down i could see the target but that ball at the end looked the same as the barrel. freacked me out cause i dont use scope's on anything. i talked to the eye doc and he also hunts so he kinda knew what i was talking about. he told me to use my old glasses(non bifocal) while shooting because the lower part is for seeing up close( if you have a deer or what not sittin in your lap i want to hunt with you) were as reg glasse's are for further away. i went into the field last season with two pair of glasses. since then i have been to the range to work with the (problem as i call it) adjusting but i still find my head moving to compensate. next step might be a scope for me but still aint fond of that idea. this season i will be in the woods with my old glasses.........and hoping that if it is sitting on my lap it will move out a foot or so and wait for me to adjust. not sure if it helped you any but i myself am still trying to adjust to my new eye's best of luck to ya and if you get an idea..........please let me(us)know thank you.