Red Dot problem on my Ultra Dot Four

I own a "Ultra Dot Four, the red dot can be seen clearly but it has annoying rays of light that start from the nucleus..it depends on my eye, or is it a red dot defect? I tryed with different gassess,I have astismatism,but nothing has changed.

Get your eye doctor to check your astigmatism.

Rotate the dot while you're looking through it.  If the "annoying rays of light" stay in the same place then it's your eyes.

Look at the dot through an aperture.

Check what it looks like to your phone's camera.

You’re describing a stereotypical astigmatism issue, assuming the dot is otherwise free of defects (checking the dot with a camera and rotating it are great tests, as mentioned).

There are solutions. I applied an adhesive aperture from Shooting Sight to the dominant eye of my shooting glasses. Whatever optical phenomenon that’s supposed to occur definitely occurs. No more starburst rays.

I can tell when I need a new prescription based on how bad the dot is.

Maybe I found the solution, I should have tried first.. of the 11 intensity at 4 this problem is practically solved but still the dot is not perfectly round but this is my eye problem

What has been suggested in the other post is the way to go for now.
I was just at my Optometrist the other day and my eyes are somewhat stable but I have cataracts in both eyes with the one in my dominant eye being dead center of the retina which causes blurry vision. 
Yes it can be removed and a new lens put in but the Doctor says it is not hard enough to be removed and I should wait is it can cause complications, so I have to live with it for a while longer.