So it seems that Mr Coucou may be right. Probably she wears contact lenses everyday but she prefers to wear glasses at home because, from what i know and Scruffy said, lenses can be uncomfortable. And probably she is actually nearsighted, since it seems that she doesn't seem to wear it at the pc (but she could easly be wearing contact lenses so...).
I've just remembered a photo where she's lying on the couch without glasses and with her phone close to her eyes. I can't remember if she was at her home (because I'm sure she was wearing her shoes on the couch) but could this be another proof that she is nearsighted? It is the same type of photo of her at the pc: it could have been taken just a moment before she wore the glasses, but since we know she might be nearsighted...
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