That starburst/flare is created by looking thru ANY Red Dot with READING Lens glasses or progressive lenses.There are plenty cheap but usable RMR's for under $50. Be sure to look through the thing to be sure the "flare" is minimal.
Does it look like a dot or starburst?
You'll thank me later!
You need to have glasses with your DISTANCE prescription or no prescription to see a clear Red Dot.
jmo,
.