Specsavers is claiming a New Zealand first with a smart billboard that will donate $1 to the Fred Hollows Foundation every time someone looks at it.
The digital billboard will be live in the Rialto Shopping Centre in Newmarket from now until December 23.
It uses facial recognition technology built into its screen to detect when a passer-by sees it.
Donations are capped at $10,000.
Specsavers has also teamed up with the iconic Kiwi artist Dick Frizzell for a limited-edition lens cloth.