Hi, i'm trying to find a short manga, where a male employee in a spectacle/optician store, realises he hasn't seen he's other male colleague's eyes, as they're always closed. So when the colleague complains that he's are itchy, he offers to apply some eye drops or him.

It ends shortly after with him unable to apply the eye drops (and unable to see his eyes), as the colleague's too scared of the drops to open his eyes.