Maria Regina, the question is unrelated to women's dress, but rather to their very presence.
When a woman is in close proximity to a man, she distracts him from everything. A man seeing the face of a woman causes carnal desire which ruins the sanctity of a church.
Avraham, why are you looking at women's faces during the Holy Sacrifice of the Mass. Keep your mind focused on the holiness of the Mass rather than on the appearance of women. You need to learn custody of the eyes. You need also to own your own sin and not project it onto the woman.
Go and talk to a priest about your problem.
Again, what is your cultural/religious background?