Frequently, vision care plans (including those you buy or are provided by your employer) contract with eye care professionals. In some plans, you use a certain eye care provider and receive a discount on the services offered. However, most plans purchased from a vision care insurance company are PPOs (preferred provider organizations) where your eye care is managed by a network of eye care providers. In a PPO, you also can use out-of-network eye providers, but you must pay a greater share of the cost.
Typically, eye care offices and networks include optometrists and general ophthalmologists. Some networks also may include ophthalmologists who perform refractive surgery, and provide LASIK or other vision correction procedures.