The reason for the shortage of contact lenses? Jitze Veenstra, owner of Berkhof Optics in Almelo, is in the dark. Is it because of corona, the war in Ukraine, problems or improvements in the factories or a shortage of raw materials? Various stories are doing the rounds. For Veenstra, the reason does not matter. “We are mainly looking for the best solution. And we warn people: put those glasses on, don’t screw up your eyes.”