The focus of this survey was the various sides of the work performed by the doctor at a child health center. One third of the children were referred to various specialists. In the case of five children in the physicians at the health center may have overlooked pathological disorder. This applied especially to the vision test at the age of four years. In twelve cases the parents failed to follow up special controls for their children. This again applied particularly to the follow-up of impaired vision. A thorough and correct vision test at the age of four years is recommended, as well as good follow-up routines for children at risk.