LAWRENCEVILLE, Ga. (AP) -- Investment firm KKR plans to acquire eyeglass and contact lens retailer National Vision from Berkshire Partners, the companies said Friday.

The financial terms of the deal were not disclosed.

National Vision, based in Lawrenceville, Ga., operates more than 750 low-price vision centers across the U.S., including America's Best Contacts & Eyeglasses and Eyeglass World, a series of free-standing vision centers inside some Wal-Mart and Fred Meyer stores, as well as on U.S. military bases.

The privately held company also sells its products direct to consumers through 25 websites, including

The deal is expected to close by the end of the first quarter. National Vision's management team is expected to remain a significant investor in the business.