(Concern) Sometimes I see a mirage-like thing in my eyes starting from whenㅠㅠ

I have had myopia originally, and I have been wearing glasses for 30 years.

As I entered my 40s, I started to experience presbyopia, and my eyes also became blurry. Using glasses on my phone made my focus even more unclear, making it hard to see well.

Now I wonder if I'm also getting older, and I'm accepting it, but since recently, sometimes I see a haze as if there's something in my eyes.

It's not that the focus is blurry, but it's throbbing.

Like the shimmering heat haze on the hot summer road, that's how it felt in front of my eyes.

Sometimes, after sleeping for a night, it disappears, so I thought it was just tiredness and let it go. But I can't tell if it's simply due to fatigue or if there's a problem with my eyes.

If it persists, I would go to the hospital for a check-up, but since it disappears after a night, it's a bit uncertain.

Is there anyone experiencing the same phenomenon as me?

Could you please give me some advice?