Eye health issues are serious...

Hello

While checking the internet here and there, if a dark area suddenly appears bright and a bright area is obscured like a curtain, it is highly likely to be a condition called "mangmangbakri"?

I keep thinking, "I don't even know what to do, and what if my eyesight really gets worse?"

I am writing this because of my impatient and fearful feelings.

Please leave a comment if you know.ㅜ

Thank you :)