Macbook Pro Screen Marks
I've had my Macbook Pro since mid 2012 but in the last year and a half I have noticed that marks are now appearing on the screen. Even though I clean it the marks still remain, it's almost like something has eaten away at screen. I have attached an image below so people have an idea of the issue. Does anyone know what this problem is and if there a cheap way of fixing it? It's no longer under warranty, but would apple fix this? Ignore the white dots, that's just the roof lights reflecting.