{"id":675050,"date":"2023-08-25T09:57:11","date_gmt":"2023-08-25T13:57:11","guid":{"rendered":"https:\/\/cheapascontacts.com\/?page_id=675050"},"modified":"2024-05-10T15:32:58","modified_gmt":"2024-05-10T19:32:58","slug":"interpreting-your-contact-lens-prescription","status":"publish","type":"page","link":"https:\/\/cheapascontacts.com\/interpreting-your-contact-lens-prescription\/","title":{"rendered":"Interpreting Your Contact Lens Prescription"},"content":{"rendered":"<h1>\n\t\t\tTitle\n\t\t<\/h1>\n\t\t\t<p>Eye doctors use standard terms, abbreviations and measurements to write contact lens prescriptions. It can look like a secret code at first, but it&#8217;s really quite simple to decipher.Below is a sample contact lens prescription. Place your cursor over each element for explanation on the right.<\/p>\t\t\n<h2>\n\t\tunderstanding your lens prescription\n\t<\/h2>\n\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/cheapascontacts.com\/wp-content\/uploads\/2020\/06\/logo.png\" alt=\"logo\" itemprop=\"image\" height=\"77\" width=\"303\" srcset=\"https:\/\/cheapascontacts.com\/wp-content\/uploads\/2020\/06\/logo.png 303w, https:\/\/cheapascontacts.com\/wp-content\/uploads\/2020\/06\/logo-300x77.png 300w\" sizes=\"(max-width: 303px) 100vw, 303px\" title=\"logo\" onerror=\"this.style.display='none'\"  \/>\n\t<ul nonlist>\n    <li>Patient: <\/li>\n    <li>Prescribed by: <\/li>\n<\/ul>\n\t<table>\n    <thead>\n        <tr>\n            <th>Header 1<\/th>\n            <th>Right Eye (OD)<\/th>\n            <th>Left Eye (OS)<\/th>\n        <\/tr>\n    <\/thead>\n    <tbody>\n        <tr data-info=\"1\">\n            <td><button>SPH<\/button><\/td>\n            <td><button>-3.50<\/button><\/td>\n            <td><button>-2.75<\/button><\/td>\n        <\/tr>\n        <tr  data-info=\"2\">\n            <td><button>BC<\/button><\/td>\n            <td><button>8.5<\/button><\/td>\n            <td><button>8.5<\/button><\/td>\n        <\/tr>\n        <tr data-info=\"3\">\n            <td><button>DIA<\/button><\/td>\n            <td><button>14.0<\/button><\/td>\n            <td><button>14.0<\/button><\/td>\n        <\/tr>\n        <tr data-info=\"4\">\n            <td><button>CYL<\/button><\/td>\n            <td><button>-2.75<\/button><\/td>\n            <td><button>-2.75<\/button><\/td>\n        <\/tr>\n        <tr data-info=\"5\">\n            <td><button>AXIS<\/button><\/td>\n            <td><button>120<\/button><\/td>\n            <td><button>120<\/button><\/td>\n        <\/tr>\n        <tr data-info=\"6\">\n            <td><button>ADD<\/button><\/td>\n            <td><button>+1.50<\/button><\/td>\n            <td><button>(low)<\/button><\/td>\n        <\/tr>\n        <tr data-info=\"7\">\n            <td><button>COLOR<\/button><\/td>\n            <td><button>Green<\/button><\/td>\n            <td><button>Green<\/button><\/td>\n        <\/tr>\n        <tr data-info=\"8\">\n            <td><button>BRAND<\/button><\/td>\n            <td><button>Acuvue<\/button><\/td>\n            <td><button>Acuvue<\/button><\/td>\n        <\/tr>\n    <\/tbody>\n<\/table>\n\t<h4>The anatomy of Contact Lens Prescription<\/h4>\n<p>Run your mouse over the prescription form to find out what all those numbers and abbreviations mean.<\/p>\n<p><strong>Please Note:<\/strong> This is not an actual contact lens prescription! As far as we know, no existing lens contains this combination of features and measurements.<\/p>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2023\/08\/rx_img-rem.png\" \/><\/p>\n<p>If you have further questions about your prescription please contact your doctor.<\/p>\n\t<h4>Refractive power<\/h4>\n<p>The amount in diopters, of correction the lens must provide to sharpen your distance vision to an acceptable level (usually 20\/20).<\/p>\n<p>The minus sign means that this prescription is for nearsightedness (myopia). A plus sign means correction for far-sightedness (hyperopia). The farther from zero, the greater the amount.<\/p>\n<p>The patient has mild to moderate near-sightedness and needs a different prescription for each eye, which is not unusual.<\/p>\n<p>If you have further questions about your prescription please contact your doctor.<\/p>\n\t<h4>Base Curve<\/h4>\n<p>The back curvature of a contact lens is measured in millimeters. For best fit, comfort, and eye health, it is prescribed to match or complement the curvature of your cornea.<\/p>\n<p>The lower the number, the steeper your cornea.<\/p>\n<p>If you have further questions about your prescription please contact your doctor.<\/p>\n\t<h4>Diameter<\/h4>\n<p>The distance, in millimeters, from one edge of your contact lens to the opposite edge.<\/p>\n<p>This measurement is important because it determines where on your eye the edges of the contact lens will rest. If the diameter is wrong, irritation or abrasion can result.<\/p>\n<p>If you have further questions about your prescription please contact your doctor.<\/p>\n\t<h4>Cylinder<\/h4>\n<p>The cylinder is necessary if your lens is corrected for astigmatism. Measured in diopters, the cylinder shows the extent of your astigmatism.<\/p>\n<p>The negative sign means myopic astigmatism. A plus sign means hyperopic astigmatism.<\/p>\n<p>All contact lens prescriptions must have a cylinder in the negative format.<\/p>\n<p>If you have further questions about your prescription please contact your doctor.<\/p>\n\t<h4>Axis<\/h4>\n<p>The axis is necessary in measuring for correction of astigmatism.<\/p>\n<p>The axis is expressed in degrees. It indicates the orientation of the cylinder in the lens, in order to compensate for the cornea&#8217;s oval, rather than round shape.<\/p>\n<p>If you have further questions about your prescription please contact your doctor.<\/p>\n\t<h4>Add power<\/h4>\n<p>The add power is expressed in diopters. Even if the plus sign is not written on the prescription, it is assumed.<\/p>\n<p>Bifocal contact lenses usually contain a prescription for reading or other close-up viewing. Some bifocal do not use numbers to express the add power, they will instead use &#8220;high&#8221; or &#8220;low&#8221;.<\/p>\n<p>If you have further questions about your prescription please contact your doctor.<\/p>\n\t<h4>Color<\/h4>\n<p>This is included only if the contact lens changes or enhances your eye color. Or, in the case of special effect contacts, a particular design is written here, such as &#8220;cat-eye&#8221;.<\/p>\n<p>Color and style names differ from one brand to another.<\/p>\n<p>If you have further questions about your prescription please contact your doctor.<\/p>\n\t<h4>Brand<\/h4>\n<p>In the United States, contact lens prescriptions always indicate a specific brand.<\/p>\n<p>The law states that contact lens retailers must sell you that brand and no other. However, in the case of some &#8220;private-label&#8221; contact lenses that are sold only by eyecare professionals, substitution of an equivalent national brand or private-label brand may be permissible.<\/p>\n<p>If you have further questions about your prescription please contact your doctor.<\/p>\n\t\t\n\t\t\t<p>In addition to the above information, your prescription may note how often your contact lenses must be replaced (once a month, every two weeks, once a week, daily, etc.). Or you may be instructed verbally, during your exam. Often the lens brand includes this information (e.g., Ophtha-Lens One-Week), but the real judge is your eyecare practitioner, who knows which replacement option is best for your eyes and lifestyle.<\/p><!--<form id=\"clid_form\">\n    <input type=\"hidden\" name=\"action\" value=\"params_by_clid\">\n    <input type=\"text\" id=\"clid\" name=\"clid\" value=\"002546\">\n    <a href=\"javascript:\/\/\" onclick=\"getParametersByCLID('clid_form')\">Submit<\/a>\n<\/form>\n<div id=\"second_form_setion\"><\/div>-->","protected":false},"excerpt":{"rendered":"<p>Title Eye doctors use standard terms, abbreviations and measurements to write contact lens prescriptions. It can look like a secret code at first, but it&#8217;s really quite simple to decipher.Below is a sample contact lens prescription. Place your cursor over each element for explanation on the right. understanding your lens prescription Patient: Prescribed by: Header&hellip;<\/p>\n","protected":false},"author":9,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-675050","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.6 (Yoast SEO v26.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Interpreting Your Contact Lens Prescription - CheapAsContacts<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cheapascontacts.com\/interpreting-your-contact-lens-prescription\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Interpreting Your Contact Lens Prescription\" \/>\n<meta property=\"og:description\" content=\"Title Eye doctors use standard terms, abbreviations and measurements to write contact lens prescriptions. 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