An introduction of contact lenses prescription (Ezine Ready)
An accurate prescription is needed for contacts. Poorly fitting contacts and lenses made of unsuitable materials may cause discomfort, inflammation, swelling, and most severely, permanent vision loss. Sharing contacts may also bring dangerous infections.
In US, optometrists, ophthalmologists as well as opticians are entitled to fit contact lenses. Subtle eye problems may have developed even you are still feeling good with your eyes and contacts. Some ophthalmologists have ever found eye problems during regular eye exams, so that you must update the prescription within a certain period, which is also listed by either federal law or state law. Another point worth mentioning is that you can change your contacts size, material or design if you are diagnosed with a lens-related problem.
Contacts prescriptions use standard terms, abbreviations and measurements, which look like secret codes yet easy for recognition. Besides regular items, your prescription may also tell the recommended replacement period or the expiry. By US law, the expiry normally is at least one year and in most of the cases it may be longer than this. However, you should always follow your ECP for final decision, rather than the products instructions.
this article is come from:http://vision.firmoo.com/contact-lenses/introduction-contact-lenses-prescription.php Article Source: http://www.articlesbase.com/vision-articles/an-introduction-of-contact-lenses-prescription-1277274.php About the Author: Vision Library is the information source in area of vision care, including eyeglasses, sunglasses, contact lenses, sports protective eyewear, vision error and diseases, vision surgery, ageing and kid's vision etc., solely sponsored by Firmoo.com, an emerging online optical store.
Pages: 1 [2] 3 4
Video Analysis of a Bench PressVideo Analysis of a Bench PressAuthor: Dudley TabakinThis week University of Southern California football running back, Stafon Johnson, was bench pressing during training when the bar slipped out of his hands and landed on his throat causing severe laryngeal as well as neck injuries.The bench press is a great exercise to build your pectoral (chest), triceps, biceps and deltoids (main shoulder) muscles. |
Best Exercise to Lose Belly Fat Effective Belly Fat ExercisesThat Produces ResultBest Exercise to Lose Belly Fat Effective Belly Fat ExercisesThat Produces ResultAuthor: Pius Victor EphenusYou mean best exercise to lose belly fat?, there are many myths about belly fat exercises and few people know how to make a clear-cut distinction between what works and what doesn\'t. Well, the general opinion is that belly fat exercises consist of many crunches and stomach exercises, but these are definitely not enough to eliminate the fat deposits around your waist. |