Jan. 28 (Bloomberg) — Google Inc.'s glasses, computerized eyewear that enables users to check e-mail or listen to music, will be covered by the largest optical insurer in the U.S., VSP Vision Care.

VSP Vision, which covers 20 percent of all Americans, will reimburse members for frames and prescription lenses for the device, Jim McGrann, president of VSP Vision, said in an e-mail today.

Google Glass eyewear is only available to testers and developers and offering the frames is the next step in making the devices available to more consumers this year, Google said on its website. The Mountain View, California-based company made available four frames and two shades in addition to the original. VSP Vision is training eye-care professionals how to fit lenses for the frames.