There were an estimated 15.3 million sight tests carried out in England during 2006-07. Of these 10.5 million were funded by the national health service with 4.8 million being paid for privately. For 4,471 of the private sight tests, the NHS provided partial help. If the 4.8 million privately funded sight tests were paid for by the NHS at the 2007-08 sight test fee of £19.32 the cost would be an additional £93 million a year. There would be additional costs if the number of tests increased as a result of their being funded by the NHS.