Eye chart chart or Jaeger chart can be used. While the Snellen chart remains the default, some authors have argued that the logMAR chart is superior. The logMAR chart presents the same number of symbols on each line, uses a typeface with letters that are equally legible at various sizes, and by varying the symbol size logarithmically, it is easier to use at nonstandard distances. As a consequence of these improvements, the logMAR chart has been proposed as a more reliable tool for measuring visual acuity. However, the logMAR chart has not yet been widely adopted. It can be difficult to measure
Eye care in the United Kingdom eye examinations, and an estimated 1,900 of people were likely to have had their condition remedied. In Wales the entitlement to sight tests is similar to that in England, except that most optometrists can also offer a free eye test to people who: People qualify for help with the cost of glasses or contact lenses if they are: Qualifying people get an NHS optical voucher, the value of which depends on their prescription. The voucher can be cashed with any supplier who accepts NHS optical vouchers. Between 1948 and 1985 the NHS supplied spectacle frames. In 1949 there were ten