Yes, wearing a mask doesn't protect you against infection from droplets in your eye. And aerosols tend to shrink a bit through evaporation between when they mi

Yes, wearing a mask doesn't protect you against infection from droplets in your eye. And aerosols tend to shrink a bit through evaporation between when they might be exhaled and someone else inhales them. So there's some asymmetry between masks protecting yourself and protecting other, but it isn't clear how much.