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. 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. In SPH, the minus sign is an indication of which condition? Screen time for kids: How much is too much? Your eyeglass prescription also may have a column labeled "OU." CYL is the amount of astigmatism correction you need, and Axis determines the lens angle required to correct your astigmatism. This means that the eyeball is spherical and has no oblongedness, and consequently has no Cylinder or Axis values. Cylinder: The cylinder (CYL) number indicates the lens power needed to correct astigmatism. Keep your prescription up to date so these numbers can accurately reflect your visual needs. AXISAn AXIS will only be found on your prescription if there is a CYL value for the same eye. The lens power amount is, therefore, measured in D (diopters) for farsightedness or nearsightedness. 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. You may also have an INTER ADD value used for arms-length distance tasks such as computers or reading music. You'll notice the CYL and AXIS values are the same for both distance and near. What does "SPH" appearing under Cylinder on my prescription mean? In astigmatism, the curvature of the eye is imperfect. What does that mean. What do the values on your prescription mean? For example: "+2.25 ADD" or "Add +2.25". CYL (Cylinder)CYL is a + or - value in 0.25 steps and is required to correct your astigmatism. It's considered a mild amount of nearsightedness. If you are farsighted, you will see a plus sign(+) next to the Sphere number. Cylinder power is always written after sphere power in an eyeglass prescription. It is usually separated by 90 degrees. 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. Pro Tip - Make sure to pay particular attention to whether the values are a + or -. What is CYL in glasses? This shows how much focal point power, estimated in diopters (D), endorsed to address myopia or farsightedness. This is an important question because this is related to the eyes and gives answers related to different changes in the human eye. What Is The Difference Between A Retinal Tear And A Retinal Detachment? The lens power amount is, therefore, measured in D (diopters) for farsightedness or nearsightedness. An eye prescription specifies the values needed for your corrective eyewear. Different prescriptions and how to enter your values on our site. Click here if your prescription looks different to this form. like in the example above, you can toggle the form to enable you to enter an inter add as below; Balance- No values are required. 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. Different ways a prescription can be displayed.Common abbreviations that appear on your prescription. The axis is labeled as a number from 1 to 180. For more information, please see our. Axis refers to an angle value between 0 and 180 that determines the angle of the cylinder correction for astigmatism. On any prescription, PD can be written in different ways: e.g., 62 (Single PD), 33/31 (Dual PD), or 62/60 (Distance PD . And what about all those abbreviated terms, such as OD, OS, SPH and CYL? A minus (-) symbol next to this number means you're nearsighted, and a plus (+) symbol means the prescription is meant to correct farsightedness. Sphere (SPH) and Cylinder (CYL) always have a (+) or (-) sign. Our online prescription form initially displays the most common format, Distance with a Near Add. Consent is not a condition of purchase. A glasses prescription can be displayed in a number of ways. ODstands for oculus dexter, the Latin term for right eye., OS is your left eye. Through her writing, Dr. Huang enjoys educating patients on how to lead healthier and happier lives. What Do The Values On Your Prescription Mean? The number appearing in this section of the prescription is always a "plus" power, even if it is not preceded by a plus sign. You can view our cookie policy here. In the third part, we will show you what the Axis in glasses is. If you require progressive lenses, your prescription willdisplay a value under the ADD (addition) column. to Fri (9am - 5pm) This is especially handy as you can copy the values without having to make any calculations yourself. Axis - If an eyeglass prescription includes cylinder power, it also must include an axis value, which follows the CYL power. Here at Spex4Less, you will find both of these options directly above the prescription form. On any prescription, PD can be written in different ways: e.g., 62 (Single PD), 33/31 (Dual PD), or 62/60 (Distance PD/Near PD). Sphere: The sphere (SPH) on your prescription indicates the lens power you need to see clearly. The axis is the astigmatism orientation. Sphere, sometimes abbreviated as SPH, indicates the amount of lens power needed to correct nearsightedness or farsightedness. Prescribing spectacles: reasons for failure of spectacle lens acceptance. Clicking 'I have TWO complete rows of figures on my prescription" will open up new option boxes for you to open your prescription. This indicates the amount of lens power, measured in diopters (D), prescribed to correct nearsightedness or farsightedness. A positive value, or a prescription with a plus-sign (+), means that your child is farsighted. Our entire range of mens glasses suitable for varifocal lenses. GogglesNMore All Rights Reserved. What face shape best suits cat eye glasses? The doctor wrote "SPH" in the Cylinder column. You can measure your current frame from screw to screw, which is already a perfect fit for you . This indicates the amount of lens power, measured in diopters (D), prescribed to correct nearsightedness or farsightedness. SPH, or sphere, refers to the amount of correction needed for nearsightedness or farsightedness. After reading this post, you may have gotten the answers. What If My Prescription Does Not Follow The Format on Your Website? Whats more, if an eyeglass prescription includes cylinder power, it also must include an Axis value, which follows the CYL power. For example: SPH -3.25 CYL -1.25 AXIS 120. 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. In the following picture, you can see an eye prescription. 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. This just means the eye has difficulty focusing at certain angles. In AXIS, the lens meridian plays an important role. We can offer up to 3.00 Dioptre's of prism online however if yours exceed this or if you have more than one direction for each eye please contact us to confirm suitablility and availability. They may also enter an abbreviation "DS" (Dioptre Spheres). Dist, refers to distance, this is the prescription required to correct distance vision. Cylinder means the amount of lens power for astigmatism and shows the differences between the greatest and weakest powers of the eye. Youll often see this terms on eyeglass prescriptions. E.g. Sphere (SPH) and Cylinder (CYL) always have a (+) or (-) sign. It is the amount of magnification required to "ADD" to the "SPH" value of your "Distance" prescription to correct your near vision. might be bigger than you would like! Knowing what they mean will also help you more easily discuss your prescription with your eye care professional. VA, Visual Acuities- These values describe your vision (visual acuity) but are not needed to make your glasses. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Spex4less and SPEX4LESS are registered trademarks of Fashion Specs Direct Limited. It will be a number between 1 and 180. If not, keep on your reading and you will find the full explanations in the following part. In SPH, the plus sign is the indication of farsightedness (near objects are blurred). Most of our prescription orders take about three days to complete. or a superscript triangle when written freehand), prescribed to compensate for eye alignment problems. What does "SPH" appearing under Cylinder on my prescription mean? The sphere is measured in Dioptre's, your prescription may have the word Plano or Pl or an infinity sign, this means that you are neither long nor short sighted but zero power for the Sphere, however you may have astigmatism - a CYL and AXIS on your prescription. If the glasses help to improve the vision, then the person is not legally blind. The Sphere is also used to correct the nearsightedness or farsightedness. This number is followed by the base direction, or thickest edge, of the prism. SPH is a '+' or '-' value in 0.25 steps and is required to correct your nearsightedness (-) or farsightedness (+). For a full 12 months from dispatch date we will repair or replace any frames with a manufacturing fault. SPH stands for spherical power and describes the degree of nearsightedness or farsightedness. 2000-2023 AAV Media, LLC. What does that mean. The prism Rx will have two values: PRISM & BASE. The measurement is the Dioptre. She also has an interest in Eastern medicine practices and learning about integrative medicine. 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). 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. | This number always has a (+) sign. However, underneath the form, you will see a set of links under the heading "Click here if your prescription looks different to this form". The three columns (from left to right) refer to Sphere (SPH), Cylinder (CYL) and Axis. 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. The measurement is in Degrees. On your eyeglasses prescription, the information for your right eye (OD) comes before the information for your left eye (OS). So what's an astigmatism? The store will not work correctly in the case when cookies are disabled. Astigmatism correction is not spherical. Your sph +4.00 means that the concave sphere with no astigmatism belongs to the hyperopia 400 prescription. If you have an astigmatism, you will have a number in the cylinder column of your prescription that indicates the lens power needed to correct the astigmatism. 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. Our friendly customer service team are on hand to help Monday to Friday 9 am-5 pm and Saturdays 9 am-12 pm. These are the abbreviations that denote to Oculus Dexter and oculus sinister in Latin and mean left eye and right eye. It indicates the amount of lens power needed to correct astigmatism, measured in diopters. It does not matter whether the correction is of farsightedness or nearsightedness; it is always in spherical form. This number always has a (+) sign. 6. OS is an abbreviation of the Latin oculus sinister which means left eye. You can then go ahead and enter the prescription as follows: By clicking the link Need Help? Full Explanations: Sphere, Cylinder, and Axis Superlite titanium rimless collection The SuperLite Titanium rimless series is provided by super Warby Parker WARBY PARKER, one of the most popular eyewear brands in the United States, set up it What Are Progressive Lenses? However, underneath the form, you will see a set of links under the heading "Click here of your prescription looks different to this form". The sphere portion is a Continue Reading 6 1 Sponsored by TruthFinder Have you ever googled yourself? This doctor has elected to add "SPH," to confirm the right eye is being prescribed only spherical power. The left eye (OS) is being prescribed -1.00 D sphere for myopia plus -0.50 D cylinder for the correction of astigmatism. Free Gifts with Purchases Over $100 | Learn More. Now that you understand those mysterious letters and numbers, you know how to read a glasses prescription! Cylinder (CYL). If the number is negative (), it means it is correcting nearsightedness. It is measured in diopters, the unit of measurement for the lens's refractive (light-bending) power. Your prescription gives us, your Opticians or Doctors recommendation for clear and comfortable vision. If you promise not to get in a petty snit, and let me explain why, I'll tell you the answer to your question. What is pupillary distance (PD) and how do you measure it? Typical SPH numbers range between 0.00 and +/- 20.00. However, many opticians will simply write the value somewhere under, or next to, the distance values. The "ADD" value may be written in the "Near Addition" space on your prescription. When you enter your prescription during checkout, please select "Not Applicable" for all Cylinder and Axis fields, thank you. If your SPH value is -1.00, you are nearsighted. The interesting fact is that if the prescription of eyeglass includes the main cylinder power, it is important to include the axis value along with it so that it follows the power of CYL. The Add, short for Reading Addition, is the additional correction required for reading, this can be used to make either reading glasses, bifocal glasses or Varifocal glasses. Sphere, often written as SPH, means that the correction for nearsightedness or farsightedness is spherical, equal in all meridians of the eye. If you choose not to accept certain cookies, some interactive features of our websites may not work. Inter, Inter Add, Int Add, Int, Intermediate Addition- These all relate to your intermediate addition and are used to make glasses for intermediate distance use. They may also enter an abbreviation "DS" (Dioptre Spheres) or "SPH" (Sphere) indicating that the correction required is spherical only. A contact lens prescription can only be obtained from a contact lens consultation and fitting. There will also be a number in the axis column thats needed for astigmatism correction. 10 Signs You Need Glasses may be helpful. This instructs the person making your glasses to use a lens of similar weight to balance out the frame. On the prescription of eyeglasses, the cylinder typically follows the sphere power. BO=Base Out, BI=Base In, BU=Base Up, and BD (or BDn)=Base Down. 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. The measurement is Prism Dioptre. Pupillary distance explained: how to measure PD. Generally, it will range from +0.75 to +3.00 D and will be the same power for both eyes. Plano, Infinity, 0.00- Basically 0.00 or no correction is required for that part of the prescription. JavaScript seems to be disabled in your browser. Remember, eyeglasses prescriptions are different than prescriptions for contact lenses. Sphere, often written as SPH, means that the correction for nearsightedness or farsightedness is spherical, equal in all meridians of the eye. If your prescription only shows the SPH box with a value, leave the CYL and AXIS blank. I promise not to get in a petty snit. 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. Only a small percentage of eyeglass prescriptions include prism. The number under 'cylinder' provides the lens power needed to correct the astigmatism. It is used to correctly orientate the cylinder correction when making your glasses. They are abbreviations foroculus dexterandoculus sinister, which are Latin terms for right eye and left eye. This indicates the required strength for the near prescription in your lens. DS (Dioptres Sphere) means you only have a Sphere power. Press question mark to learn the rest of the keyboard shortcuts. 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. CYL is good to know because it tells how light refracts on the eyes retina. Sphere, Cylinder, and Axis on Eye Prescriptions Sphere: The sphere (SPH) on your prescription indicates the lens power you need to see clearly. What is CYL, AXIS and SPH? When no correction for SPH is required the optician will write "Plano", "", "0.00" or just leave the space blank. 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. The measurement is the Dioptre, and most values range from +0.50 to +3.50 and will go up in steps of 0.25. [+/-Cylinder].axis [some angle between 0 and 180 degrees]. However, if you have a CYL value, you must have a corresponding Axis value. Common Abbreviations That Appear on Your Prescription. If nothing appears in your CYL column, you do not require astigmatism correction. 5. OOPS! The axis is the orientation of the cylinder when looking at an eye. CYL is a + or - value in 0.25 steps and is required to correct your astigmatism. In eye prescription, what does CYL means? It always follows the sphere power on an eyeglass prescription. A nearsighted prescription will feature a number with a minus (-) symbol in the sphere box. In addition, most prescriptions willshow your pupillary distance (PD), the horizontal distance between your pupils. The axis is the astigmatism orientation. On the off chance that the number showing up under this heading has a short sign . Loved by Customers -64,000+ Trustpilot Reviews! Page published on Thursday, 21 February, 2019. There are occasions where your optician will write out your complete "Distance" prescription followed by your complete "Near" prescription. Sphere (SPH) - The term "sphere" means that the correction for nearsightedness or farsightedness is spherical, equal in all meridians of the eye. These include: Sphere indicates the amount of lens power, measured in diopters(D), prescribed to correct nearsightedness or farsightedness. . By Email or 0330 165 6900, Site Map If for any reason you are not satisfied with your order, we will replace or exchange your glasses/lenses. These glasses are often worn full time. A minus (-) symbol next to this number means youre nearsighted, and a plus (+) symbol means the prescription is meant to correct farsightedness. 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. Commonly, this number will be different for each eye. The ADD value is also referred to as a "Near Addition" or "Reading Addition". The type of Rx glasses may be noted on a prescription, such as DV [Distance Vision/nearsightedness] and NV [Near Vision/reading]. The CYL stands for Cylinder. The number under the OD and OS measurement in your prescription is measured in diopters. How to Measure your PD(Pupillary Distance), Choosing the Best Frames for Progressives, How to Replace Lenses in a Full-Rim Frame, How to Replace Lenses in a Half-Rim Frame. We aim to deliver within 1-7 days and we will always attempt to notify you of any delays. The AXIS, in degrees, is a number between 0 and 180. The axis is always exactly 90 degrees away from the meridian, which contains all of the correcting lens power for astigmatism. In the right eye, the prism is base down (BD); in the left eye, it's base up (BU). EyeBuyDirect has a wide variety of budget frames starting at $6. What does SPH mean for glasses? In the second part, we will explain what the Cylinder in glasses is. If the number appearing under this heading has a minus sign (), you are nearsighted; if the number has a plus sign (+) or is not preceded by a plus sign or a minus sign, you are farsighted. It is used to correctly orientate the cylinder correction when making your glasses. Your prescription may have a base column, or it may be included in the same column as prism this gives further information about the required prism correction, telling us the orientation needed in the lens. 1. If a prescription includes cylinder power, it must be followed by an axis. You should have a number under the CYL column too. 'Sphere' is basically a measure of how strong your prescription needs to be. When 180 is reached, the axis then starts over at 0. 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. What are the different types of contact lenses? 844-249-8359 Available 24 hours a day, 7 days a week. The term "sphere" means that the correction for nearsightedness or farsightedness is "spherical," or equal in all meridians of the eye. Now you know the ABCs and the ODs and OSs of your eyeglass prescription, so you can make sense of your eyeglass prescription. Sphere means the spherical correction where the meridians of the human eye are equal. Most online retailers ask you to read and input your prescription into their order form, but if you dont know how to read your prescription, that process can get complicated. Our entire range of mens sunglasses from only 19.97, Our entire range of womens sunglasses from only 19.97. There is no astigmatism correction for this eye, so no cylinder power or axis is noted. If you have an astigmatism, you will find a "+" or "-" value in this box. SPH, or sphere, refers to the amount of correction needed for nearsightedness or farsightedness. Most values range from 0.00 to +/- 20.00 and go up in steps of 0.25. If you are nearsighted, you will see there is a minus sign(-) next to the Sphere number. The 20/20 vision is the correct vision for normal eyes. Knowing how to read an eyeglass prescription is essential! This box maybe empty or have a plus or a minus value in it. Please note you can also upload a copy of your prescription during checkout and our Optometrist will check it against what you have entered on your order and you will be notified if there are any discrepancies. Those individuals having 1.5 or more diopters will definitely need to use eyeglasses in order to correct the vision. After reading this part, you may get the answer. Prism is used to correct eye alignment issues and can be a metric or fraction value. What does VD mean on eye prescription? Get news, offers and hand-drawn stickers by Mila, our co-founder Shing's daughter! 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. Axis is the angle in which the cylinder correction should be. Reddit and its partners use cookies and similar technologies to provide you with a better experience. When the shape of the human eye cornea changes, the large changes in the measurement of the axis is seen though, this is rare. The term sphere refers to the fact that distance vision correction is spherical, or equal in all meridians of the eye. 'Add' +2.50 - should be entered for both eyes). OD is short for the Latin term oculus dexter which means right eye. The number under cylinder provides the lens power needed to correct the astigmatism. The CYL basically represents the main differences in the weakest as well as greatest eye powers which are usually separated by degrees (90). (See Different ways in which a prescription can be displayed below). With eight years of experience in the world of content strategy and creation, Michael specializes in medical copywriting and advanced research methodologies. Alternatively, you may have a row for "Distance" and a space provided for a "Near Addition" or "Reading Addition". Swim Goggles Non-Rx: Giggly Goggles for Kids, All Swim Goggles Non-Rx: Giggly Goggles for Kids, Anti Blue Light Glasses / Blue Block Glasses, Replacement Parts & Accessories| Rec Specs, Prescription Ski Goggles Inserts and Ski Goggles, Partnerships with Ophthalmologists / Optometrists / Eye Health Professionals. Sometimes they need to be adjusted by professionals. What is SPH in a Glasses Prescription? Youll typically find the abbreviates OD and OS on the left side of your prescription. Cyl = cylinder or the amount or power of the astigmatism correction. The first thing to understand your eyeglass prescription is knowing what "OD" and OS" means. Children should have their first eye exam when they are around six months old, and then another just before they start school. How to choose the best lenses for your glasses, Photochromic lenses: Glasses that adjust to light, Special eyewear: Safety, driving and computer glasses, How to pick the right glasses for your face shape, Reading glasses: A buying guide for readers, Choosing glasses for your style and personality, Glasses size: A guide to eyeglasses frame size, Best places to buy eyeglasses/where to buy glasses, Why prescription sunglasses are a smart choice, How to prevent eye damage with UV sunglasses, Choosing the best sunglasses for your kids, The pros and cons of daily disposable contact lenses, Contact lens care: How to clean and store soft contacts, Understanding your contact lens prescription, Choosing the right coloured contact lenses, Contact lens tips: A user guide with expert advice. This indicates that your lens should be shaped to correct near vision. (Some doctors will add "DS" for "diopters sphere;" others will leave this area blank.). We use cookies to personalize content, to provide social media features and to analyze our traffic. An SPH number indicates if you are farsighted or nearsighted. You're currently shopping our United States site. That is to say, the OD means the right eye and OS means the left eye. A survey of the criteria for prescribing in cases of borderline refractive errors. Home>Tips & Guides>How to Read an Eyeglass Prescription. OSstands for oculus sinister, Latin for left eye.. GlassesUSA has a huge selection of contacts, glasses, & sunglasses. Spectacle-related eye injuries, spectacle-impact performance and eye protection. Add indicates the magnifying power applied to the bottom part of bifocal, multifocal, or progressive lenses used to correct presbyopia (age-related farsightedness). Balance - No values are required. The PD/Pupillary Distance is generally measured during a sight test, but is not routinely written on a prescription, you can ask for this from your Opticians, or ask them to add it to your prescription when you are tested. The cylinder is the indication of the condition, astigmatism, in which the cornea is shaped irregularly causing distorted or blurred vision. The size is not dangerous or bad, but the number associated with it (ex: Size: small, medium, large, extra-large etc.) Theplus (+) orminus (-) sign before SPH indicates whether you are nearsighted or farsighted. Most values range from +/- 0.25 to +/- 4.00 and will go up in steps of 0.25.

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