peep sight clarifiers?

[kikinhorse]

Now that I am getting older, and the eyes after 20/20 vision my whole life, I was curious how they work and how do you know which lense is correct for you.

 

[Fullabull]

I have had to go to a larger 1/4" peep, I'm 53 so it definitely helps to see through. It also depends on how large you sight pins are. I like smaller pins.

 

[Jimbow65]

I would be reluctant to add any solid inside my peep, the concept sounds good, but if it is snowing, raining, or misting, it would be useless. with an open peep, if it is snowing you can blow it out, but if it is an optic, you would just fog it.