I'm gonna skip right over that "question" & say if you need glasses to see properly you need to be wearing them OR get contacts if you can safely use them & they meet your vision needs. If you need glasses just keep looking 'till you find the style that you feel looks best on you. You could take friends or family with you to help if you really feel like you need someone's opinion. The key to real sexiness is feeling comfortable & confident in your own skin--& if you wear glasses, they are considered like a part of you since you need them! Look good for yourself first. The right guy will be attracted. :)
Look like you normally do. If he likes you, he would love the way you look regardless.
My friend tells me that she looks like crap because she hasn't showered or anything. I still find her incredibly sexy but that's because I'm biased. I am in love with her and my opinions about her are more than if some similar girl walked by looking like that.