1. Health departments of the United Kingdom (2000) Second report of the National Screening Committee
2. Snowdon SK, Stewart-Brown SL (1997) Pre-school vision screening. Health Technol Assess 1:1–98
3. Hall DMB, Elliman D (2003) Health for all children, 4th edn. Oxford University, Oxford
4. Department of health (2008) Updated child health promotion programme
5. A Joint Statement of the American Association for Pediatric Ophthalmology and Strabismus and the American Academy of Ophthalmology. Vision screening for infants and children (2007)