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by JustSomeNobody 4078 days ago
Having worked my way through an engineering degree as a lab manager for an optical lab, this looks like what happens to an A/R (anti-reflective) coating when harsh cleaning chemicals are used (Windex, etc...).

On mine, I would just use a water-dampened, clean, soft towel if I need to clean my screen. And by clean towel, I mean clean. I don't even set it on the counter as it can pick up particulate matter. And by soft, I mean never a paper towel. Ever.