Warby Parker swung to a second-quarter profit as results were helped by a tariff refund, offsetting costs of the upcoming launch of its artificial-intelligence eyewear.

The eyewear maker on Thursday posted a quarterly profit of $4.64 million, or 4 cents a share, compared with a loss of $1.75 million, or 1 cent a share, a year earlier. The company said the quarter includes a tariff-refund benefit of $11.8 million.

Analysts polled by FactSet were expecting earnings of 10 cents a share.

Revenue rose 9.8% to $235.5 million, compared with analyst expectations of $238 million.

Shares were off by 7%, trading at $27.20 in premarket trading.

Active customers growth rose 4.1% to 2.71 million on a trailing 12-month basis, while average revenue per customer was $336, up 6.6%. FactSet analysts had been expecting active customers of 2.75 million and average revenue per customer of $333.70.

Warby Parker backed its full-year revenue outlook of $959 million to $976 million, while Wall Street analysts are expecting $979.9 million. The guidance includes a full-year $14.4 million tariff refund benefit that is being used to offset strategic investments in the business, the company said.

The company opened 15 net new stores in the quarter, bringing its store count to 352.

Warby Parker is also continuing to develop intelligent eyewear and expects to unveil its first collection in a few weeks. The company has paired with Google Gemini and Samsung to incorporate "technology that allows you to explore, remember, navigate, and connect while keeping your eyes on the world around you," said Co-CEO Neil Blumenthal.