Greetings and thank you for using justanswer,
How long is she pulling eye lashes?
Did she pull on the both sides?
Did you consult a doctor yet?
How long is she pulling eye lashes? about one year
Thank you for the information,
As per the symptoms you have described, it is very likely that she is suffering from trichotillomania which is characterized by chronic, repetitive pulling of bodily hair.
It is a psychiatric disorder and behaviour therapy is very effective in treating it rather any drugs.You can also cut her eye lashes to small size so that she can't hold and pull it out apart from applying other techniques.
You should consult a psychiatrist or a behaviour therapist for this.
You should also rule out the other causes including any pathological condition of the eye though the chances are less in her case.
Please visit here for more information:
hair pulling and treatment
Let me know if you have any doubt.