Progressive For multi-focal glasses, as well as reading and computer glasses, your Rx will include an ADD or NV value. As you can see in the first example (Standard GOS 2 Glasses Prescription) the optician has listed the patient's complete distance prescription on the top row and the complete near prescription in the bottom row. ODstands for oculus dexter, the Latin term for right eye., OS is your left eye. Similarly, the values concerning the correction of your left eye may be indicated as "LE", "Left", "Left Eye" or "OS" which is an abbreviation for Oculus Sinister, the Latin term for "Left Eye". It is usually separated by 90 degrees. The AXIS stands for Axis and SPH stands for Sphere. If this column is blank, it means you have no astigmatism. What is CYL in glasses? & Worries-free! If nothing appears in this column, either you have no astigmatism, or your astigmatism is so slight that it is not really necessary to correct it with your eyeglass lenses. Plano, Infinity, 0.00- Basically 0.00 or no correction is required for that part of the prescription. Do you know the meaning of the Sphere, Cylinder and Axis? This is an important question because this is related to the eyes and gives answers related to different changes in the human eye. Cyl = cylinder or the amount or power of the astigmatism correction. Your sph +4.00 means that the concave sphere with no astigmatism belongs to the hyperopia 400 prescription. Free Shipping Worldwide on Orders Over $69, Full Explanations: Sphere, Cylinder and Axis in Glasses. Our entire range of womens prescription designer glasses. Page published on Thursday, 21 February, 2019. When you enter your prescription during checkout, please select "Not Applicable" for all Cylinder and Axis fields, thank you. If not, keep on your reading and you will find the full explanations in the following part. Some people may have prism in two directions for one eye, for example; Prism 2.00 Base IN & 1.00 Base UP. Copyright 2022 VisionCenter.org. Add indicates the magnifying power applied to the bottom part of bifocal, multifocal, or progressive lenses used to correct presbyopia (age-related farsightedness). If the human eye acuity is 20/200, this is called the bad eye axis and is considered the blind person. Essentially, OD means right eye, and OS means left eye. The values range between 0 and 180 and may go up in steps of , 1, 5 or 10 degrees, we only show the AXIS to a whole number but if you have a degree on your prescription you can list this in the additional information box when ordering. The "ADD" value applies to both eyes and can sometimes be written only once on the prescription, even though the addition is required for both eyes. All Opticians and Doctors worldwide work to the same procedures when writing a prescription, which can be printed or written in a similar fashion to this sample prescription. In the second part, we will explain what the Cylinder in glasses is. What face shape best suits browline glasses? Our entire range of prescription glasses for Men. In the right eye, the prism is base down (BD); in the left eye, it's base up (BU). Our entire range of mens sunglasses from only 19.97, Our entire range of womens sunglasses from only 19.97. Free Gifts with Purchases Over $100 | Learn More. What does that mean. 2004 - 2023 Spex4less, Fashion Specs Direct LTD, All Rights Reserved. For example: SPH -3.25 CYL -1.25 AXIS 120. The type of Rx glasses may be noted on a prescription, such as DV [Distance Vision/nearsightedness] and NV [Near Vision/reading]. What face shape best suits round glasses? Best way to buy glasses: Online or in person? Though the use of these abbreviated Latin terms is traditional for prescriptions written for eyeglasses, contact lensesand eye medicines, some doctors and clinics have opted to modernize their prescriptions and use RE (right eye) and LE (left eye) instead of OD and OS. Consent is not a condition of purchase. Prism refers to the amount of prismatic power needed to correct eye alignment problems, measured in prism diopters. This shows how much focal point power, estimated in diopters (D), endorsed to address myopia or farsightedness. This indicates that your lens should be shaped to correct near vision. The less common prism Rx refers to the amount of prismatic power needed to compensate for eye alignment issues (e.g., double vision or lazy eye). Naturally, a prescription will contain values for the correction of both of your eyes. When no correction for SPH is required the optician will write "Plano", "", "0.00" or just leave the space blank. There are occasions where your optician will write out your complete "Distance" prescription followed by your complete "Near" prescription. What does Axis mean for glasses? AXISAn AXIS will only be found on your prescription if there is a CYL value for the same eye. It tells the optician how to orient the lens so that the cylinder has no power at the axis location. Nowadays, most of us wear glasses and most of us just take the prescription to the optical store to pick out a pair of glasses. 1. Sphere: The sphere (SPH) on your prescription indicates the lens power you need to see clearly. Can someone help me out here? Essentially this means correction for Astigmatism is not required for the prescription being considered. To convert a multi-focal prescription for single vision reading glasses, simply combine the Add number and the Spherical number. They may also enter an abbreviation "DS" (Dioptre Spheres) or "SPH" (Sphere) indicating that the correction required is spherical only. In SPH, plus sign is an indication of which condition? This correction is often used for reading, sewing and any detailed close work. Marketing cookies are used to offer personalized advertisements. On the other hand, in the farsightedness, the person can see those objects clearly which are far but near object seems blurry. Notable terms include: Sphere (SPH) - The term "sphere" means that the correction for nearsightedness or farsightedness is spherical, equal in all meridians of the eye. Warby Parker has stylish, high-quality frames at affordable prices. CYL is a + or - value in 0.25 steps and is required to correct your astigmatism. Clicking 'I have TWO complete rows of figures on my prescription" will open up new option boxes for you to open your prescription. The AXIS, in degrees, is a number between 0 and 180. Common abbreviations that appear on your prescription. For example, if the Add were +2.25 and the OD-Sph was -0.50, the new OD-Sph for reading glasses would be +1.75; if the Sph were +0.25, the new Sph would be +2.50. There is no astigmatism correction for this eye, so no cylinder power or axis is noted. Checkout now! Add is the added magnifying power applied to the bottom part ofmultifocal lensesto correctpresbyopia. Axis is the direction in which the astigmatism . If you dont have any medical issues that affect your vision, you should have a comprehensive eye exam every one to two years. If the glasses help to improve the vision, then the person is not legally blind. The 20/20 vision is the correct vision for normal eyes. Worried about the wrong fit? Your optician may or may not write DS (Dioptres Sphere) in the CYL box. might be bigger than you would like! Impact resistance and prescription compliance with AS/NZS 1337.6:2010. Sphere, sometimes abbreviated as SPH, indicates the amount of lens power needed to correct nearsightedness or farsightedness. These are abbreviations for the Latin terms oculus dexter and oculus sinister. The BVD stands for Back Vertex Distance, this is a measurement that is included on any prescription where the sphere or cylinder powers are higher than + or - 5.00D and to a lesser extent some prescriptions where it is less than this power. Cylinder indicates the amount of lens power for astigmatism. You may also have a column labeled OU, which means oculus uterque, or both eyes. The CYL basically represents the main differences in the weakest as well as greatest eye powers which are usually separated by degrees (90). Specific parts of Rx: To expand on dr. Proffitt's answer, sph = sphere; if this is a negative number, the prescription is a myopic or nearsighted prescription and a positive number dictates a farsighted or hyperopic prescription. I agree to Olives, How to Know If You Need Glasses? The number under the add column tells us the 2nd lens prescription needed for multifocal lenses. By continuing to shop we will assume you are happy to receive all cookies. The value may be as high as 10 and may go up in steps of or 1 Prism Dioptres. Single vision lenses vs progressive lenses. The 'addition' is only required if the glasses are going to be used for reading or close work. What is CYL, AXIS and SPH? to Fri (9am - 5pm) Sphere means the spherical correction where the meridians of the human eye are equal. There will also be a number in the axis column thats needed for astigmatism correction. ADD. If you experience difficulty in obtaining this measurement we can record it, if necessary, from an existing pair of your glasses, to find out more click here. GogglesNMore All Rights Reserved. These include: Sphere indicates the amount of lens power, measured in diopters(D), prescribed to correct nearsightedness or farsightedness. The AXIS is only present if there is a value in the CYL box, the AXIS tells us where the astigmatism is on your eye. Optometrists measure SPH values in increments of 0.25 diopters, and when people talk about their prescription degree, they're usually talking about their sphere value. Spex4less and SPEX4LESS are registered trademarks of Fashion Specs Direct Limited. The Zenni Optical website says I need that bit, but all it let's you input are positive or negative numbers, I can't write in SPH even if I knew what it mean. If you have been provided with a BVD value ensure to enter it into the additional information or comments box provided with any online prescription forms. If the number appearing under this heading has a minus sign (-), you . If in doubt just enter your prescription as you see it, if youre not sure what type of lenses are suitable, hover your mouse over the question mark next to the lens type to reveal more detailed information about the product. We use cookies to give you a fantastic customer experience. In the context of an eye prescription, OD means right eye and OS means left eye. SPH, or sphere, refers to the amount of correction needed for nearsightedness or farsightedness. The sphere is the indication of how strong the lenses need to be in order to correct the vision. A glasses prescription can be displayed in a number of ways. It would be entered on our website as below: Our online prescription form initially displays the most common format, Distance with a Near Add. The PRISM value will also be followed by a directional value (see BASE below). It does not matter whether the correction is of farsightedness or nearsightedness; it is always in spherical form. This format is less common in the US. What does "SPH" appearing under Cylinder on my prescription mean? Myopia control: How to slow your child's myopia, Childrens eye care problems at school-age, How the eye works: Refraction and refractive errors, Using eye drops: How to correctly apply them. "How to Read Your Eyeglass Prescription. In addition, you will see the initials OD and OS written on your eye prescription. Optometrists measure SPH values in increments of 0.25 diopters, and when people talk about their prescription degree, theyre usually talking about their sphere value. The cyl power has its axis at the 180 meridian, meaning the horizontal (180-degree) meridian of the eye has no added power for astigmatism and the vertical (90-degree) meridian gets the added -0.50 D. Both eyes are being prescribed an "add power" of +2.00 D for the correction of presbyopia, and this eyeglass prescription includes a prismatic correction of 0.5 prism diopter in each eye. These links allow you to toggle the form so that it appears the same as the hard copy of your prescription, some common examples are shown below. This is always a "+" value in 0.25 steps. If the number is positive (+), it is correcting farsightedness. If nothing appears in your CYL column, you do not require astigmatism correction. In SPH, the plus sign is the indication of farsightedness (near objects are blurred). Home>Tips & Guides>How to Read an Eyeglass Prescription. Most reputable online suppliers like Spex4Less will offer a variety of forms for you to enter your prescription details in to. They can also be written anywhere on the prescription. Yes, I would like to be notified by email about this product, and to receive emails from Olive with the latest deals, sales, and updates. +4.50 -1.50 x90. SPH is one of the parameters to report your eye prescription. Get the latest updates on new products and upcoming sales, 2023 Please try again. Should I get a second opinion? When you hold the prescription, have you ever been curious to know what the number and letters mean for your eyesight? Knowing what they mean will also help you more easily discuss your prescription with your eye care professional. In other words, because eyeglasses and contact lenses have different distances from your eyes, the amount of correctionneeded is also different. Learn about LASIK success rates and side effects, Learn about the costs associated with LASIK, Benefits of LASIK for astigmatism correction, How to find vision insurance that covers LASIK, Compare PRK and LASIK procedures and results, 14 tips for protecting your vision after LASIK. By the end of this article, youll know exactly how to read your glasses prescription and what your prescription means. This article will help you decipher all parts of your prescription and discuss it knowledgeably with an optician or when you buy eyeglasses online. Screen time for kids: How much is too much? The axis indicates the angle (in degrees) between the two meridians of an astigmatic eye. Our entire range of prescription glasses for Women. Whats more, if an eyeglass prescription includes cylinder power, it also must include an Axis value, which follows the CYL power. Essentially this means correction for Astigmatism is not required for the prescription being considered. By subscribing to Eyebuydirect text messaging on 81096, you agree to receive recurring autodialed marketing text msgs to the mobile number used at opt-in. The axis is labeled as a number from 1 to 180. This indicates the amount of lens power, measured in diopters (D), prescribed to correct nearsightedness or farsightedness. A Prism is to try and correct a lazy eye and indicates a more delicate condition, this is included with a prescription to correct some special conditions or some eye disorders (like squints) that require the focussed image to move position. The optical centre of each lens should be placed directly in front of the centre of each of your pupils.