If you are going to order them online , you just need to choose your favourite frames ,and there should be two choices for you , with or without lenses . You can get the frames only and put the lenses in your local optical store or order the lenses together . You don't need to fill the prescription form and they can get the clear lenses for you .
You could just need the lenses with no prescription. That kind of glasses may help you from the radiation from the computers. A lot of office men wear it this year. You could just tell the client about your need of lenses with no prescription. That is so easy by just telling your actual need.