In Nevada, you will find vision insurance to be simple, and many plans are similar to each other. Even between different insurance companies, the vision insurance plans are basically the same. At the very least, a vision insurance policy is supposed to cover up the cost of one visit to an optometrist. Some plans may also cover up the cost of new frames and lenses you get each or at different times. It all comes down to which plan you subscribed to. Further, the lower your visits to the optometrists and lesser buying of specs and lenses, the lower will be the cost of your vision plan.