is my glasses prescription the same for contact lenses?
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Are glasses prescriptions and contact lens prescriptions the same? A glasses prescription is not the same as a contact lens prescription. Glasses sit slightly away from your eyes and contact lenses sit directly over your eye, so two different tests and measurements are required.
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Bifocal contact lenses are lenses that offer two different prescriptions in a single lens. One prescription is for close reading, and the other for normal, distance vision.
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They are significantly different because eyeglass lenses are positioned approximately 12 millimeters from your eyes, whereas contact lenses rest directly on the surface of your eyes. If you want to wear both contact lenses and eyeglasses, you will need two separate prescriptions.
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If you already wear glasses, you'll need a separate prescription for contact lenses. Contact lenses have extra measurements such as diameter and base curve, for the perfect fit. Everyone's eyes are unique, so a contact lens prescription ensures you have lenses which are comfortable and fit well.
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While contact lenses are usually a safe and effective form of vision correction, they are not entirely risk-free—especially if they are not cared for properly. Contact lenses are medical devices, and failure to wear, clean, and store them as directed can increase the risk of eye infections, such as microbial keratitis.
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Daily and monthly disposables contact lenses are often referred to as dailies and monthlies. The main difference between the two is really the amount of care you need to give each lens.
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Some studies have indicated that 5 to 10% of all (not just Zenni) eyeglasses have been filled with the wrong prescription. By far the most common problem is mixing up the left and right eyes. A lot of the errors are less than 0.5 diopters. A lot of errors are astigmatism along the wrong axis.
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Contact lens and glasses prescriptions are not the same. A contact lens must match the size and shape of your eye. Therefore, a prescription for contact lenses contains information like base curve and diameter, as well as brand. ... However, contacts must be designed to fit the astigmatism, if there is one.
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Bifocal contact lenses allow this correction without wearing specific glasses. ... Bifocal contacts are more expensive than standard contacts. If you have vision insurance, your plan should offset some of that cost.
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The Difference Between Contact Lens Care Solution And Eyedrops. ... The contact lens care glasses solution is used for soaking contact lens to sterilize, disinfect and get rid of protein while the moistening eye drop is used when you feel uncomfortable wearing contact lens.
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I'll save you the suspense…the answer to the second question is yes. Prescription glasses can have lenses made from a wide variety of lens materials each differing in refractive index, specific gravity, Abbe number, and other technical mumbo-jumbo.
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All contact lenses are classified as medical devices by the U.S. Food and Drug Administration (FDA) and require a valid prescription. ... It's extremely important that consumers get an eye exam and only wear contact lenses, with or without vision correction, that are properly fitted and prescribed by an eye doctor."
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If you have been fitted by an optometrist or ophthalmologist with the 2 different brands and been prescribed the lenses, then yes, it is safe. If you were using one brand and then spotted a cheaper brand on the internet (for example) and decided to buy the cheaper one, then no, in this situation it might not be safe.
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Are colour contact lenses safe? Yes, coloured contact lenses are safe — as long as your contacts are properly prescribed, used and cared for. It's essential that you visit your optician for a proper contact lens fitting.
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The prescription is needed to get the right power and fit of the contact lenses (CL). The exam is a good idea because: Not everyone is a good candidate for CL; if your eye is too dry, or has irregular astigmatism, Fuchs dystrophy , eyelid problems, Giant papillary conjunctivitis, etc.
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If you wear or want contacts, you need a contact lens exam in addition to a comprehensive eye exam. ... An eyeglass prescription measures for lenses that are positioned approximately 12 millimeters from your eyes; whereas a contact lens prescription measures for lenses that sit directly on the surface the eye.
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ACUVUE® VITA™ Brand Contact Lenses are available by prescription only for vision correction as a daily wear lens with one-month recommended replacement. ... Although rare, serious eye problems can develop while wearing contact lenses.