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My eye or the crosshair

7.8K views 48 replies 36 participants last post by  Lance Boyle  
#1 ·
I shot my CZ 452 LH with a T-36 twice last week at 50 yards. Once on a cloudy day and the other was a very sunny day all with a roof over my hear. Each time as I concentrated / focused on the crosshairs, the vertical line remained clear and black but the horizontal blurred out to the point it disappeared. I would need to take my eye off the scope, rest for 15 seconds then reacquire the target. Again, take a few seconds to line up the shot, the horizontal crosshair virtually disappeared. Same result using my other eye. I realize this is the minimum range for the T-36 AO but crosshairs are crosshairs. Should I "assume" that this is an eye problem?
Also this is my first scope in 46 years.
Thank you
 
#2 ·
If you are a more mature person i.e. geezer try blinking more often. Thats probably not it but the easiest possible fix. When I had that problem develop with my fine + I bought glasses just for shooting after bringing in a scope to the eye doc's.
 
#3 ·
I agree with Al, blinking will help you eye refocus on the target. Also try a target that has contrasting color. White paper with bright green or orange bullseye. The black crosshairs of the scope reticle can get lost on a black bullseye.
 
#4 · (Edited)
Perplexed

What confuses me the most is that the vertical crosshair remains clear and distinct but the horizontal crosshair fuzzes out, Maybe I'll try rotating the scope 90 degrees and see if anything changes. Yes my eye exams are current.
Thank you
 
#15 ·
What confuses me the most is that the vertical crosshair remains clear and distinct but the horizontal crosshair fuzzes out, Maybe I'll try rotating the scope 90 degrees and see if anything changes. Yes my eye exams are current.
Thank you
If you adjust the eyepiece and it sharpens the horizontal one and the vertical grows fuzzy thats the problem I had before seeing the doc, and getting single vision lenses for shooting with scopes only. YMMV of course
 
#6 ·
It could be a retina problem. A few years ago I was diagnosed with a "puckered" retina, i.e. the retina's supposed to be smooth and mine was not. The symptom was that when I looked at a vertical line it had diagonal check marks in it. The Doc did a laser job on it and now horizontal lines are slightly wavy. Probably not your problem, but who knows. You can also get a hole in your retina, which was my first diagnosis. Even tho your eye exams are "current" things do happen suddenly. How many people were "healthy" yesterday and died of a heart attack the next day?
 
#7 · (Edited)
Have you adjusted the eyepiece recently?
It allows you to match your vision and eye relief to the crosshairs.
By turning the eyepiece find the sharpest/clearest view of the cross hairs
then adjust the objective to fit the distance to the target.

Image
 
#9 ·
Jaia, doesn't the elevation and the windage look reversed to you?

:F
 
#8 · (Edited)
Quite possibly there's a problem with the scope. One crosshair remaining sharp while the other blurs out sounds fishy to me. Possibly it's not focused right, but I doubt it's your eye. You're shooting with both eyes open, right?

If it is the scope, you may be able to adjust the eyepiece focus so the other crosshair blurs and the previously fuzzy one becomes sharp. There may even be some middle ground where they're both sharp.

Your idea of rotating the scope 90° isn't a bad one. If it's a scope issue, the crosshair that was blurry before should stay that way.

Finally, adjust your eyepiece focus while looking at a blank light colored surface with nothing except the crosshair for your eye to focus on. A clear blue sky works, as does a blank wall with light paint. The more light the better when you do this. It can be three feet in front of you ( wall ) or infinity (sky).
Adjust so both crosshairs are sharp and well defined. You may need to rest your eyes a few times while you do that, and the crosshairs should be immediately sharp when you look through the scope. If it's off a little bit, your eyes will automatically adjust but you'll get eyestrain in a short time because of it.

Get someone else who is familiar with scopes to try yours, see if they have the same problem. They'll need to adjust it for their eyes, once that's done they may have the same results you do.

With my scopes, I find there's usually about a quarter turn of the eyepiece between fuzzy and sharp and fuzzy on the other side.

If you do decide it's a scope problem, hopefully Weaver will repair it for you. I don't know what their warranty is like.
 
#11 ·
I thought I had a Cataract issue and it turned out to be Glaucoma....irreversible optic nerve damage.
Dont take chances with eyes when things change for the worse!
 
#13 · (Edited)
65 here, I carry a small bottle of Systane eyedrops in my range bag that gets pulled out once or twice a session or the crosshairs get fuzzy and my eyes feel like there is sand in them. It's drugstore stuff, I find it helps

A couple of months ago I was told I had a small cataract, never noticed it until one day I pulled a rifle with a peep sight out. Does not show up normally but look through a peepsight and there is a fuzzy dot in the middle. I thought is was a small piece of dust or lint in the aperture , but looking through with the other eye the sight was perfectly clear
 
#16 ·
At 70 started to see more changes with my eyes, l wear glasses and i'm do for a new pier now. l too loose the horizontal cross hair every so often just have to blink once or twice, l don't like shooting at a target with white back ground, on a sunny day it's just to much, make my targets and buy tan copy 30 weight paper, softer on the eyes.

Had to give up using peep sights almost 8 years ago, there is something going on with booth eyes, see this only when using peep sights that l can tell, have a elongate light gray z line starts from 10 o'clock and goes to 5 o'clock almost like split image and that's in both eyes, l was going to change shooting form left hand to the right hand, it wouldn't of matter l see the same z in my right :confused:
 
#17 ·
Go see an eye doc.

Just had exam last week and one of the tests was a picture of black horizontal and vertical lines in a grid pattern, very similar to a scope reticle. They checked for 3 or 4 different things with just that one pic. I asked what they were checking for and what the OP described fit one of those conditions perfectly.
 
#18 ·
My T36 is quite old and the eyepiece has very fine threads. I rotate it 2 full threads at a time, when focusing it, at first. Take it past the point of rough focus, so you will know where it is approximately. Then come back at the rate of one full turn between checks for focus.
The scope Must be Dead Steady.
 
#19 · (Edited)
What you are experiencing is perfectly normal, because one crosshair is slightly farther from your eyepiece than the other (with any wire reticle, as opposed to a glass-etched reticle). Read what Jaia said. Play with your focus ring. I ALWAYS have to compromise, i. e., pick one or the other to be in perfect focus.

Young people do not notice this because the lenses in their eyes are more flexible, so whichever crosshair they look at, it is in focus. The same thing occurs with shooting iron sights -- they can so quickly change focus, front sight to rear, rear to front, and so on, that BOTH seem to be in focus. Not so with us older guys -- we need two different sets of glasses!

The good news is, it won't hold your shooting back. :bthumb:
 
#22 ·
Lots of good thoughts. I'm surprised at all the eye problems. thought I was the only active shooter with "pucker", glaucoma, macular edema, Cataracts, and 7 eye laser burn spots.

Could this be a CZ disease?

If the focus ring doesn't 'change' the sight picture somewhat, then it sounds like a vision problem.
 
#23 ·
Just be glad you can see one of the crosshairs clearly.

I had macular holes in both eyes fixed several years ago. Just in case... the macula is the part of the retina that is used for fine focus, in the center of your vision. The first macular hole before and after it was repaired caused my right eye to see straight lines as wavy lines. The next and hopefully last repair to my left eye caused the exact same thing... wavy straight lines. The surgery helped a LOT, but did not completely fix the problems. BTW, doc says I got "lucky" in that only 1 in 10 people have macular holes show up in both eyes :eek: :mad: :(

Guess where you need to be able to see crosshairs. Yep, right where the macula tries to focus, where the crosshairs cross. It's a big bummer! My best performance now is with round targets with several interior circles. I try to find a close circle outside of the actual crosshairs that I can see plainly and try not to focus on the exact center.

Luckily, I can still shoot a few ones and twos at 50 yards, if I'm lucky... sometimes...

Good luck figuring it out! :bthumb:

djc
 
#24 · (Edited)
I am surprised that no one else has mentioned this so far (or perhaps I just missed it!) but, it seems like a no-brainer to me - have someone else look through your scope. Maybe even a few people. If the line doesn't disappear on them, then it is probably your and/or your eyes - go to the doc, change how you are looking through the scope, change your position, etc. If the line does disappear with them, then it is probably the scope - adjust it, fix it, send it back, etc. I usually get paid big bucks to come up with solutions like this, but for you, I will only charge a plate of cookies. I like peanut butter chocolate chip. PM me for my address. :D Burt
 
#28 ·
Wife had the cataract surgery and it is truly life changing. This is at age 71. She has never seen well, very nearsighted and astigmatism. She had the multifocal lens implanted and now only needs light reading glasses. The multifocal lens is not covered by medicare and it ain't cheap. If you can find any way to swing the cost, you wont regret it. Considering she could not read the illuminated McDonalds menu from the counter with glasses on to her excellent results is very rewarding.

She commented that my face is getting wrinkled. Trust me , it has been for a while. I went out on a limb and suggested she take a peek in the mirror. Risky, but worth the chuckle.
 
#31 ·
eye problem?

people have suggested an optometrist, that's not wrong . but having had a problem for 70+ years and been by very good specialists ie opthalmoligst I would recommend you find a good one. medicare if you have it will pay a good portion of the charges. wishing you the best.
BobM
 
#33 · (Edited)
Besides the obvious that your eyepiece must be in perfect focus (I can't tell you how many times someone has told me the their eyepiece was in focus and it wasn't, in some cases not even close), because if it's not, my next point comes along even faster.

What you are describing can be caused by simply hold your breath to long.
Every human being on the planet will experience a complete loss of focus, or even a complete white out if you hold your breath to long.

When you're young it may take 15-20 seconds, however if you're getting up their it can take as little as 4-7 seconds.

That's why it cures itself if you back off the scope and start breathing again.

Add in haveing your eyepiece a bit out of focus, just makes it worst.
Your description is just one of many weird effects that can occur once your brain is gettings low on oxygen.

To be sure you eyepiece is in focus, dial it way out of focus with at least 10 full revolutions, and then spin it back until it's super crisp.
Don't stop when it first looks pretty good.
With a fast focus eye piece this can be done in a half of a revolution, but with your Weaver it takes 10 to 15 revolutions
to get it really out of focus, and that many going back the other way plus a bit more to get it perfect.
Again don't stop until it's perfect, and that may mean going by it the other way, and then back again.

Smooth
 
#37 ·
I am not an expert but have found that I can see better when I wear my reading glasses with a scope. It is a cheap and easy thing to test. You can get reading glasses at dollar tree for a buck a pair. get a couple pairs and try them.:)