Plastic cover in front of CRT

[lnx64]

I have an old 5" black and white TV from the 80's, and it's plastic face is all scuffed up.

I popped it open, and can easily remove the CRT to take out the plastic to polish it, but the CRT says it has implosion protection. Um, if it does, why the plastic screen?

Can I just remove the plastic screen and call it a day? I'd imagine it'd be FAR sharper and brighter, cause the plastic is tinted too.

It's a Unisonic XL900B.