Usually, plans for vision insurance, including those you purchase or are provided by your employer, contract with eye-care professionals. In some plans, you receive care from an eye-care provider and get a discount on services. Most plans offered by a vision insurance company, however, are called PPOs (preferred provider organizations). This means that your eye care is managed by a network of eye-care providers. In a PPO, you can also use out-of-network eye-care providers but must pay a larger share of the cost.
Eye-care offices and networks generally include optometrists and general ophthalmologists. Some networks may also include ophthalmologists. Ophthalmologists perform refractive surgery and offer LASIK and other vision-correction procedures.