The newest instalment to the ‘Should’ve gone to Specsavers’ ad series includes an actual eye exam for viewers.

Debuting in May, the new ‘Cubby house’ ad contains more than 15 deliberate mistakes, with the challenge to viewers to test their sight and tell their eye care provider exactly how many errors they can detect for a chance to win a share of $15,000.

The new ad features a DIY dad on a mission to renovate the family’s old cubby house and turn it into a magic princess dream castle for his daughters, only to discover he has decorated Lenny the dog’s kennel instead.

“Everyday mistakes that may come about if you need to get your eyes checked are showcased in a light-hearted way to encourage New Zealanders to take better care of their eye health and book in for regular eye exams,” said Sarah McInness, Specsavers’ marketing director.

The campaign is being rolled out across TV, online and social media, with three winners every week taking home $1000 each over five weeks.