Is the woman considered sinful for wearing colored cosmetic contact lenses due to bullying, and is it permissible for her to tell anyone who asks that they are her real eyes?

We see that you are exaggerating the problem of bullying due to wearing glasses, as there are many who wear them. And if bullying occurs, the treatment is not to flee, but to put an end to the bully and make clear his sin, or to report him to someone who will deter him. We do not see any justification for lying in this matter; rather, it is better to accept oneself and deal with the current situation with contentment, and not surrender to negative emotions.