Rifle Scopes Blury reticle help

[KillerJoe]

Ok I have a bit of a weird one, I have a Nightforce NXS 5.5-22x56 mounted to my DTA SRS A1, Ive had the issue of the reticle being blurry when I close my left eye and look through the scope with my right eye (obviously im right handed) I have adjusted the eye piece until its crisp but if I hold my left eye closed for any longer than say 30 seconds I find the reticle blurs out. If I keep both eyes open it stays crisp but find the left eyes image distracting. My length of pull is right, eye relief is right, Is this normal? is it an adjustment thing im missing? Should I just persist and learn to shoot with both eyes open or should I look into shooting glasses? do I go full pirate and get an eye patch? LOL im just trying to look for a solution and need help or ideas

Before I get "your eyesight is shot" comments I have had my eyes tested not a month ago and the lady said I have near perfect vision so I know my eyes are fine.

 

[PBWalsh]

Could be simple eye strain. Try looking through the scope for less time. Could also practice more on both eyes open as well.

This is assuming everything is set up for your eyes.

 

[Threadcutter308]

You may be left eye dominant;

http://www.allaboutvision.com/resources/dominant-eye-test.htm

But, it does seem odd that the reticle (right eye) gets blurry when you close your left.

 

[Dthomas3523]

It seems that its eye strain. How tightly are you keeping your left eye shut? Also, how long do you have to open your left eye before the image clears up in your right? If you can't get comfortable with both eyes open and it clears up after a second or two, you can open your left eye intermittently to relieve the strain.

 

[pell1203]

Sounds like eye strain to me. How old are you?

Older eyes are often more susceptible to strain due to hardening of internal lens in eye. This hardening makes it more difficult for the eye muscles to flex and hold the lens in place at the right curvature to bring the image into focus.

Ever wonder how kids can see clearly at distance but still see things in clear focus when brought 3” in front of their eyes? It’s due to the greater flexibility of the young internal lens and the diminished muscle force required to bend the more pliable lens into the shape needed to focus the image.