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Contact lenses are one form of medical devices that a wrong pair of contacts can cause harm to the eyes. As a result, customers must have a valid prescription while buying contact lenses from any sources. In the suppliers’ side, they are prohibited to sell contacts to people without a valid prescription. In some cases, contact lenses are also called prescription lenses. Actually, eyeglass lenses with vision correction are also one category of prescription lenses. This type of eyeglasses also requires a prescription from an eye practitioner. For those wearing both contacts and eyeglasses, they need two types of prescription, which should be always distinguished correctly. An eyeglass prescription typically contains the lens’s sphere, cylinder and axis. And a contact lens prescription usually states items such as the base curve, diameter, brand name, material as well as water content. Buying contact lenses always require a prior consultation with a doctor, during which some useful tips will be given. Currently, most of the regular vision problems can be corrected by contact lenses, including nearsightedness, farsightedness, astigmatism and presbyopia. With a doctor’s visit and getting a valid prescription, the patient can buy contact lenses from any sources he prefers. Opticians are obliged to give a copy of the patients’ prescription, which is set by the Optician Act. Once the patient has paid for an eye examination, the prescription naturally belongs to him. An optician can not refuse to give the prescription. Non-prescription contact lenses are completely illegal in the UK now because they can put risk on one’s eyes. In addition, the lens brand you get should exactly conform to the one described in the prescription. In most cases, the supplier should consult the optician about some details of the prescription. Currently, there are still colored contact lenses that are used by some people for aesthetic reasons. This type of contact lenses is also considered as prescription lenses, which must be fitted by a professional. Customers should be clear of the lens’s powers, cylinders as well as materials. Notable brands of contact lenses include Acuvue, Ciba Vision and Bausch & Lomb. It is always up to the doctor that which brand is suitable for a specific patient. If you want to know more about contact lenses knowledge, then feel free to visit http://blog.firmoo.com/ Default Author Bio: Firmoo.com is the fastest growing online community selling affordable yet high quality prescription eyeglasses, progressive glasses and other eyewear. Firmoo’s return and refund policy makes your purchase with Firmoo risk-free. Be sure to get your prescription reading glasses online ready.
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