Seeing rain when it's not raining

[Icyblue]

Following on my two previous threads regarding my 10yr old dd who sometimes says she sees lines in her vision, she had now been seen by an optometrist and doctor. Her eyes are fine, not floaters and the doctor confirmed it's not migraine. My dd describes them like she's seeing rain. The lines are straight and transparent/white and fall down from above. Each episode lasts a few seconds and if she looks away, the lines/rain disappear. If she concentrates and looks at a background she sees them too.

Anyone came across this before?

Iv been seeing it for years also my husband has

What do other people that see it think

I believe it is like visual snow and was told this by a neuroopthamologist. I was in a car accident a decade ago and have been seeing rain since. I used to go outside to check.

I'm an optometrist and I see it. It really isn't something to be concerned about.

If something you're looking at has a very similar colour to the background, your retina has less stimulation than usually and it just makes things up! I get it too.