"No one will be shopping for separate eye-care plans, an exclusion that roils companies that sell vision insurance. Even though they aren't getting new customers, vision insurers still have to pay the [ACA's] tax on health insurance providers. Why did vision get left out of Obamacare? ... When [insurer VSP Global] paid the fee last week, the levy amounted to $25 million. In a letter to the Internal Revenue Service along with the payment, VSP's general counsel said the company intends to seek a refund."