Firstly, you should know which are the providers your insurance covers and understand the benefit. Then you are ready to make an appointment. When you make your appointment, be prepared to supply the optometrist or ophthalmologist with the name of your vision insurance company, the name of the plan under which you are covered, and your I.D. number. This is because your eye doctor might need to obtain pre-authorization from your vision insurance company before performing your exam.At the time of your appointment, you will be asked to show your vision insurance I.D. card or give some other proof of vision insurance coverage. Depending upon your vision plan, you also may be asked to pay a deductible, and/or a co-pay or discounted prices for the services you receive.