Incense is an interesting theory. Vapors and strong aromas do bother my eyes when I'm wearing contacts.
But as some have mentioned, maybe she had been weeping or thought she might weep and didn't want to draw attention to it.
Didn't someone mention a couple of nights ago that Laura's eyes were swollen and she might been crying....At the time I thought...They look like mine....It's allergy time!
Out with the contacts (it may have been the reason she holding on to "W"...Can't tell where she's going and is afraid she'll fall and make a spectacle of herself)
..... and on with the colored glasses. My eyes water....Nothing seems to help for two miserable weeks...Sunlight is very painful. SPend alot of time inside........Then it just stops as quickly as it starts.