Thanks to The Ironic Catholic for the suggestion.
Top 10 Reasons Men Should Practice Custody of the Eyes
10 - It helps teach discipline.
Men should discipline themselves to be in control of their passions and not allow passions to control them.
9 - It avoids the near occasion of sin.
To avert your eyes when you feel tempted to use a woman lustfully is a good thing.
“But I say to you, everyone who looks at a woman with lust has already committed adultery with her in his heart.” -Matt 5:19.
8 - Custody of the eyes builds up chastity.
Chastity helps us to properly order our sexuality. If we do not have custody of the eyes, it means our sexuality is dis-ordered toward objectification - not love - and needs to be healed.
7 - It is what every gentleman should do.
No woman who respects herself wants to be lusted after or looked up and down. No real gentleman would dishonor a woman by doing so.
6 - It helps a man to see the whole woman, not just parts of her body.
When most men see an immodestly-dressed woman, their brains automatically start to objectify her. Thus, men need to be able to see the truth about who a woman is - not just to break her down into objects he can use for his selfish pleasure.
5 - It avoids scandal.
Think of King David. If he would have practiced custody of the eyes he might have been able to avoid much worse sins - adultery and murder. Now think of what happens when a man is caught in a lustful look toward a woman.
4 - It helps fight off temptation.
Men suffer from sexual temptation frequently. To have custody of the eyes helps a man to fight off an even stronger temptation of lusting after a woman after he ogles her.
3 - It helps our sisters not feel objectified.
If for no other reason, we should witness to the dignity of a woman by controlling our passions.
2 - It is a virtue we should chase after.
It is related to chastity, modesty, and temperance.
1 - It focuses us back on more important things.
"Seek first the kingdom of God and his righteousness, and all these things will be given you besides." - Matt 6:33
Christ should be our first priority. Honoring the height of his creation (our sisters) should be the second. We should be third.