NHS patients and private patients. Check-ups are free, however dentists charge patients a regulated fee. Patients in Scotland must pay up to 80% of the total cost of the treatment unless they qualify for free treatment or help with costs. Dentists are remunerated through a voucher towards treatment and patients can choose to have more expensive treatments if they are willing and able to do so. This is mostly commonly seen with dental amalgam restorations on molars, which are available on the NHS, whereas composite resin restorations are not. The patient 'opts-out' of the NHS treatment and pays for the composite restoration as temporary private patient, but remains an NHS patient for future checkups. Community pharmacies in Scotland also provide prescribed medicines free of charge, where the patient is registered with a GP Surgery based in Scotland, and where the appropriate prescription-voucher is given. Like GPs, they are private providers who deliver NHS services under contract. Pharmacists are increasingly delivering services which were once the responsibilities of GPs, such as flu vaccinations as well as offering advice on skin problems, gastrointestinal problems and other minor illnesses. Pharmacies in Scotland are frequently located inside Chemists' shops and supermarkets. While there are no prescription charges in Scotland, prescription-vouchers are not ordinarily given in Scotland for certain medicines - such as acetominophen and ibuprofen - as these are available without a prescription at very low prices in most chemists and supermarkets. Most optometrists in Scotland also provide NHS services, and provide eye examinations, which includes retinal health checks and other eye screening services in addition to sight tests. Entitlements are mainly for corrective lenses and a predetermined set of frames - which were once known as 'NHS glasses' which attracted some social stigma until the range of frames was extended. Secondary Care Hospital services are delivered directly by the National Health Service in Scotland. Since devolution, Scottish healthcare policy has been to move away from market-based solutions and towards direct delivery, rather than using the private or voluntary sectors. Proposals for the establishment of fifteen NHS boards were announced by the Scottish Executive Health Department in December 2000. Further details about the role and function of the unified NHS health boards were provided in May 2001. From 1 October 2001 each geographical health board area had a single NHS board that was responsible for improving health and health services across their local area,