When Vogue shared a photo on Friday of Anna Wintour cuddled up on her couch and encouraging readers to stay home amid the coronavirus outbreak, she, perhaps unwittingly but unsurprisingly, set a welcomed example.

You might chuckle at the sight of Wintour continuing to wear her signature sunglasses even during self-isolation. But as it turns out, wearing glasses either sunglasses or the prescription variety may help prevent you from contracting COVID-19.