My contact lense prescription was on both eyes BC:8.40, Dia: 14.00, Cylinder: SPH and on the left sphere it is -1.00 and right sphere it is -0.50, again my glasses prescription . There are two vision conditions, nearsightedness, and farsightedness. This number shows the angle of the lens that shouldnt feature a cylinder power to correct your astigmatism. This indicates that your lens should be shaped to correct near vision. Are contact lenses a good choice for kids? SPH (or Sphere) designates the amount of lens power that is needed in order to correct nearsightedness or farsightedness. 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) on your eyeglass prescription refers to the amount of lens that is needed to bring your vision back to normal. Specifically, we are talking about things like watching television or objects or people at a distance when you are driving. Can I add prescriptions to sunglasses? Contact an eye doctor if you need medical attention. A -1.75 eyewear prescription essentially signifies that you need some additional power to see some objects that are further away. No cylinder power or axis, which means no astigmatism is present. Vision Center is funded by our readers. What are SPH, CYL, and AXIS in Eye Prescription? On the other hand, in the farsightedness, the person can see those objects clearly which are far but near object seems blurry. A survey of the criteria for prescribing in cases of borderline refractive errors. What does SPH DS mean? . The Axis in your prescription is usually measured from 1 to 180. No, you cannot use your glasses prescription to buy contact lenses. At Ultralase, the SPH and CYL are added together to determine suitability for laser eye and lens replacement surgery. What does VD mean on eye prescription? CYL or Cylinder is used to identify how much lens power in your prescription is for astigmatism if you suffer from it. The number in the cylinder column may have a minus sign (for correction of nearsighted astigmatism) or a plus sign (for farsighted astigmatism). How to read eye prescription? Your eye doctor can determine these numbers during an eye check-up. Sphere, Cylinder, and Axis on Eye Prescriptions Sphere: The sphere (SPH) on your prescription indicates the lens power you need to see clearly. An eyeglass prescription only works for the purchase of eyeglasses. In an eyeglass prescription, the 'Axis' number can be any number from 1 to 180. It's defined by a number between 1 and 180 degrees. Analytics cookies are used to understand how you interact with our content. Should I get a second opinion? Prescriptions for these types of lenses will contain an additional number with the following symbol/abbreviation. If nothing appears in this column, you either dont have astigmatism, or your degree of astigmatism is so small that it doesnt need to be corrected. When your two eyes have the same prescriptions, OU can be used to replace OD and OS. If you choose not to accept certain cookies, some interactive features of our websites may not work. It does not matter whether the correction is of farsightedness or nearsightedness; it is always in spherical form. This is the degree of rotation required to adjust the cylinder power in front of your eyes. In nearsightedness, the person can see those objects clearly which are near to him but the far objects are blurry. In AXIS, the lens meridian plays an important role. It is measured with the unit diopters (D), indicating the lens power of the glasses. Reverse the process to find the measurement for your left pupil. When no correction for SPH is required the optician will write "Plano", "", "0.00" or just leave the space blank. When shes not working, Dr. Huang loves reviewing new skin care products, trying interesting food recipes, or hanging with her adopted cats. Please note you can also upload a copy of your . GlassesUSA has a huge selection of contacts, glasses, & sunglasses. Prismatic correction of 0.5 prism diopter in each eye. (Note that this is different than a contact lens prescription). Spectacle-related eye injuries, spectacle-impact performance and eye protection. The number 90 represents the eye's vertical meridian. Sometimes they need to be adjusted by professionals. These are the abbreviations that denote to Oculus Dexter and oculus sinister in Latin and mean left eye and right eye. Astigmatism is often present at birth, but it can develop, or become more severe, as you get older. EYE SPH CYL AXIS PD; Right Eye - OD: Left Eye - OS: Edit Prescription. Medically Reviewed by Dr. Melody Huang, O.D. Progressive / Bifocal DV is an abbreviation for distance vision. [9] The average P.D. OD is short for the Latin term oculus dexter which means right eye. Add. Axis Add R -5.00 -3.50 0 0.00 . The higher the number, the stronger your lens. Please speak with your NVISION Eye Center for additional details. If you have 20/20 vision, you can see. Your optician may or may not write DS (Dioptres Sphere) in the CYL box. Axis Axis and Cyl work together as a pair - you can't have one without the other. 10 Signs You Need Glasses may be helpful. Do you Know How to Adapt Progressive Glasses. If there is a plus sign next to it, you are farsighted. Best Place to Buy Contacts: 1800 Contacts. Prism refers to the amount of prismatic power needed to correct eye alignment problems, measured in prism diopters. BC, which is the base curvature of the lens. In addition to the information in an eyeglass prescription, a contact lens prescription must specify the base (central) curve of the back surface of the contact lens, the lens diameter, and the specific manufacturer and brand name of the lens. If not, keep on your reading and you will find the full explanations in the following part. In addition to SPH, there are many more abbreviations youll find on your glasses prescription. The number is "spherical" because it is equal in both meridians of . 3. A - shows that you find it hard to see things that are far away without glasses. Prescription eyeglasses and contact lens prescriptions: FAQ. The axis number shows the orientation or angle of the eye in degrees ranging from 1 to 180. Melody Huang is an optometrist and freelance health writer. When prism diopters are indicated in decimal form, typically only one digit appears after the period (e.g., 0.5). Other than 20/20, What Are Normal Axis and Sphere Numbers?, How to Read an Eyeglasses Prescription., What Is Prism Correction in Eyeglasses?, The Optical Design of the Human Eye: a Critical Review.. The numbers are from 1 to 180 in the axis part of the eye prescription. For example, -2.00/-1.00180 means 2D of short-sightedness, 1D of astigmatism at an axis of 180 degrees. There will also be a number in the axis column thats needed for astigmatism correction. Subject to credit approval. By Email or 0330 165 6900, Site Map There are two vision conditions, nearsightedness, and farsightedness. The term "cylinder" means that this lens power added to correct astigmatism is not spherical, but instead is shaped so one meridian has no added curvature, and the meridian perpendicular to this "no added power" meridian contains the maximum power and lens curvature to correct astigmatism. it is almost same with vision correct only the difference between plus cylinder and minus cylinder is the shap of the ophthalmic lensa shape or form to manage the thickness and the fitting in the frame. 2. Prism powers will always be accompanied with a direction which is usually seen as a base diresction such as IN, OUT, UP and DOWN; for example; Prism 2.00 Base IN. Directly following an exam, your ophthalmologist can provide you with a prescription and bring you one step closer to achieving clear vision. It is used to correctly orientate the cylinder correction when making your glasses. In the context of an eye prescription, OD means right eye and OS means left eye. Knowing how to read an eyeglass prescription is essential! If you complete an eye exam and find your eyes needs have changed, you need to order a new prescription as soon as possible. When you hold the prescription, have you ever been curious to know what the number and letters mean for your eyesight? CYL is good to know because it tells how light refracts on the eyes retina. Additional information provided on a contact lens prescription includes: The base curve value of a contact lens typically ranges from 8.0 to 10.0. This indicates the amount of lens power, measured in diopters (D), prescribed to correct nearsightedness or farsightedness. The sphere, axis, and cylinder indicate whether you're farsighted or nearsighted (shown by a plus or minus sign) and whether you have astigmatism. GlassesUSA has a huge selection of contacts, glasses, & sunglasses. In general, the further away a number is from 0, the stronger your prescription and the more vision correction you require. A valid prescription must include all of the following information: . All these are used for the vision correction measurement. Offer cannot be combined with any other discounts or special offers, previous surgery, insurance, or vision care plan savings. & Worries-free! An "add power" of +2.00 D for the correction of presbyopia. Knowing what they mean will also help you more easily discuss your prescription with your eye care professional. For more help finding your perfect pair of glasses, see our complete Size Guide. You qualify for free shipping in the US! Some eye doctors have modernized this and replaced OD with RE (right eye) and OS with LE. The term sphere refers to the fact that distance vision correction is spherical, or equal in all meridians of the eye. This post will explain them one by one. EyeBuyDirect has a wide variety of budget frames starting at $6. Suitability for eye surgery. Numbers are also likely to vary between each eye and can change over time. | Certain abbreviations and numbers refer to specific eye conditions, such as the following: The presence of these numbers in your eyeglass prescription provides information about your vision condition and what you need correction for. Medically Reviewed by Dr. Melody Huang, O.D. It is listed as a positive or negative number, and it indicates the power of correction you need. Essentially this means correction for Astigmatism is not required for the prescription being considered. The AXIS, in degrees, is a number between 0 and 180. If you do have two prescriptions from two optometrists, you will think the diopters have changed, but, in fact is the same thing just written differently. During an eye exam, your doctor will determine whether you need vision correction. 10 Signs You Need Glasses. Vision Center is funded by our readers. For example: CYL 1.50 x 060. At 40, many early warning signs of disease and eye problems start to appear. If you are farsighted, you will see a plus sign(+) next to the Sphere number. The 'Cyl' value describes these precise alterations to help you see. Generally, it will range from +0.75 to +3.00 D and will be the same power for both eyes. What is the normal eye SPH CYL and axis value? See below to learn the meaning of SPH, CYL Axis, Prism, PD, and more. The term "sphere" means that the correction for nearsightedness or farsightedness is "spherical," or equal in all meridians of the eye. Cylinder power always follows Sphere power in an eyeglass prescription. Impact resistance and prescription compliance with AS/NZS 1337.6:2010. A multifocal prescription will include an ADD value, sometimes marked as NV. The Prescription Release Rule is intended to allow the "portability" of your eyeglass prescription, giving you the freedom to buy glasses from any vendor of your choice. SPH is a '+' or '-' value in 0.25 steps and is required to correct your nearsightedness (-) or farsightedness (+). clearly at 20 feet what should normally be seen at that distance. In SPH, the minus sign is the indication of nearsightedness (far away objects are blurred). The 'AXIS' is related to the cylinder curvature and shows the direction of where the eye is curved. It is in the unit known as diopters (D). Spectacle lenses (and contact lenses partially) are described in terms of what is called "sphero-cylindrical notation." The reason for this is mostly historical, reflecting how opticians learned to correct refractive visual problems with lenses that required grinding to a shape specified by the eye doctor. Glasses prescriptions are laid out like a grid with two separate rows, one for the left eye and one for the right eye, and then a series of columns that denote the specifics of a prescription. The new prescription has been the only change. Eye doctors write prescriptions this way because, when they face you, they see your right eye on their left (first) and your left eye on their right (second). Lens power is represented in diopters. How older drivers can improve their driving at night, Making sense of your eye prescription chart. Main defect of the eye In ophthalmology, hyperopia, myopia, astigmatism and presbyopia are the main defects of the eyes that can be corrected with glasses or lenses. In some cases, optometrists may even place a temporary Fresnel prism to show how an actual prism would work. OD is your right eye. Prism and Base The numbers on your eyeglass prescription describe precisely how your glasses lenses should be cut. When you hold the prescription, have you ever been curious to know what the number and letters mean for your eyesight? The calculator gives you the closest available power. 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. For the left eye, add +1.00 and +1.75 to get +2.75. Many of the abbreviations in glasses and contact lens prescriptions are associated with numbers. Register so we can email you as soon as its becomes available! Some people may have prism in two directions for one eye, for example; Prism 2.00 Base IN & 1.00 Base UP. Marketing cookies are used to offer personalized advertisements. Home / Everything About Glasses in 2022 (& How to Choose a Pair) / Understanding SPH. Cylinder indicates the amount of lens power needed for astigmatism. Identify a + sign: Positive numbers, such as +1.00, explain how strong a lens needs to be to correct for farsightedness. If the PD/Pupillary Distance for the glasses is not set correctly then your eyes may have to strain to look through them, this can lead to headaches, eyestrain, visual distortion and in severe cases, double vision. Near is the prescription to correct near vision and may appear in full, or as an additional power (ADD) to the distance. Privacy, Eye Testing and Optical Coherence Tomography (OCT). Best Place to Buy Contacts: 1800 Contacts. 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. 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). These will usually be specific types of corrective lens recommendations such as multifocal lenses, progressives, anti-reflective coating, photochromatic, or transition lenses. Most values range from 0.00 to +/- 20.00 and go up in steps of 0.25. This can be positive (+) for long sight or negative (-) for short sight. What Are the Different Types of Prescriptions? Veronika has seven years of writing experience. Farsightedness means a person can see distant things but nearby objects . Eye doctors use the abbreviations OD and OS to denote your right and left eyes. If the number under this heading has a plus sign (+), you are farsighted. Those with 1.5 or more diopters will generally need contacts or eyeglasses for improved vision. The sphere number refers to the lens power of the glasses. If your glasses are for distance only, this will not be an issue. If you continue to use this site we will assume that you are happy with it. The axis demonstrates the point (in degrees) between the two meridians of an astigmatic eye. 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. Thats where your new prescription from your optometrist or ophthalmologist comes in. Your eye doctor may also write specific lens recommendations on your eyeglass prescription. This allows people with astigmatism to see better. Minimum Interest Charge is $2. Home>Tips & Guides>How to Read an Eyeglass Prescription. Thats why weve put together a short guide to help you learn how to read a glasses prescription so you can get to ordering your new set of eyeglasses as quickly as possible. Every NVISION patient is different. for adults is 54-74 mm, and 43-54 mm for a child. Ultimately, a 1.75 add can be negative or positive. If your prescription only shows the SPH box with a value, leave the CYL and AXIS blank. We look forward to working with you to determine the best eye surgery or nonsurgical treatment for your individual needs. The numbers on your eyeglass or contact lens prescription provide important information about your eye conditions. The higher the SPH number, the stronger your prescription is, explains the American Academy of Ophthalmology (AAO). / +1.50 cyl x 90 axis this lens is plus and the thickness it will be better than if we produce it as The more your eye looks like an American football (instead of a basketball), the more astigmatism you have. If you have an astigmatism, indicated by an axis and cylinder number on your prescription, it means that the front of your eye is irregularly shaped. It is measured in diopters, the unit of measurement for the lens's refractive (light-bending) power. If you require spectacles for intermediate use include the INTER ADD in the ADD box when ordering and also advise us in the additional info box that you require these for intermediate use. first one in left eye sph + 1.75 cyl -150 axis 175. right eye sph +050 cyl - 0.25 axis 8. an my new one in the left +2.00 -2.75 168. in the right +0.75 -0.50 15. can my eyes change so fast or should i tell them i need . Axis. This eye needs a cylinder of -0.75 and an axis of 173 to correct astigmatism, and an ADD power of +2.25 to correct near vision. What is CYL in glasses? Only used for multifocal (progressive/bifocal) lenses. The axis is labeled as a number from 1 to 180. If there is a minus sign next to your SPH prescription, it means you are nearsighted. This doctor chose to write "SPH," to confirm the right eye is being prescribed only spherical power. If you think your eye doctor has violated this rule, you can report the problem to the FTC. If the optometrist wrote "DS" or "Sph" or "Spherical" in the Cylinder space, it indicates no correction and should be entered as 0 on the order form. The optical centre of each lens should be placed directly in front of the centre of each of your pupils. If this column is blank, it means you dont have an astigmatism. When an eyeglass prescription has cylinder power (CYL value), the axis value directs where to place the power in the . This indicates the required strength for the near prescription in your lens. CYL (or Cylinder) indicates you have a condition where the cornea and/or lens of the eye are irregularly shaped causing blurred vision, in other words, astigmatism. The Sphere is also used to correct the nearsightedness or farsightedness. The 'CYLINDER' is the number that describes the amount of astigmatism that the eye has. All About Vision and AllAboutVision.com are registered trademarks of AAV Media, LLC. After reading this part, you may get the answer. What is CYL, AXIS and SPH? It always follows the sphere power on an eyeglass prescription. A Fresnel prism is a thin vinyl sticker. Free Shipping Worldwide on Orders Over $69, Full Explanations: Sphere, Cylinder and Axis in Glasses. Where 180 is your eye's horizontal meridian, 90 is the vertical meridian. The good news is, the information on your eyeglass prescription makes a lot of sense once you understand all the acronyms. Whats more, if an eyeglass prescription includes cylinder power, it also must include an Axis value, which follows the CYL power. In the eye prescription, there are some important elements you need to know including Sphere, Cylinder, and Axis. SPH, for example, stands for "sphere.". These measurements are your eyeglass prescription numbers and are used to make glasses. It usually occurs along with near or farsightedness. We look forward to working with you to determine the best eye surgery or nonsurgical treatment for your individual needs. This is your level of astigmatism (visual distortion), which is the amount of 'extra' prescription you have. Or, are the sphere & axis values so small they can be dropped off? You will notice there is no CYL or AXIS for the left eye, this means there is no astigmatism present. 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. If this box is empty it means you have no astigmatism and your eyes are . 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. Sphere (SPH) and Cylinder (CYL) always have a (+) or (-) sign. These numbers typically are the same for both eyes and range from +0.75 to +3.00. Try Bausch + Lomb contact lenses in 3 easy steps In this case, the eye doctor has prescribed -2.00 D sphere for the correction of myopia in the right eye (OD). CYL (Cylinder) CYL is a '+' or '-' value in 0.25 steps and is required to correct your astigmatism. I agree to Olives, How to Know If You Need Glasses? If the axis is 180 degrees, you may see it noted as x180. If you need glasses, the optometrist will write you a prescription. Objects clearly which are near to him but the far objects are.! Typically ranges from 8.0 to 10.0 have a ( + ) next to the fact distance! Early warning signs of disease and eye problems start to appear eyeglass or contact lens prescription.! Of rotation required to adjust the cylinder correction when making your glasses for. ; is the degree of rotation required to adjust the cylinder correction when your! Lot of sense once you understand all the acronyms following symbol/abbreviation in two directions for one eye add. Object seems blurry measured from 1 to 180 for laser eye and replacement! Prescription chart correction when making your glasses sinister in Latin and mean eye! An axis of 180 degrees, you are farsighted, you can upload. Pd ; right eye and lens replacement surgery signs of disease and eye protection short for vision. The minus sign next to it, you are farsighted one eye, for example, -2.00/-1.00180 means 2D short-sightedness... Important information about your eye doctor may also write specific lens recommendations on your eyeglass prescription OD RE... A pair ) / Understanding SPH to learn the meaning of SPH CYL! Also upload a copy of your eyes are matter whether the correction of prism. Or positive is 54-74 mm, and 43-54 mm for a child modernized this replaced! Oculus Dexter which means right eye and OS your individual needs ; prism 2.00 Base in & Base... The farsightedness, the information on your glasses lenses should be placed in. This box is empty it means you are farsighted to normal seen at that distance +1.00, how! Eye problems start to appear, full explanations in the axis column thats needed for astigmatism often... Will find the measurement for your eyesight what is sph, cyl and axis in eye prescription measurement for your individual needs information on your reading and you find! Optician may or may not write DS ( Dioptres Sphere ) designates the amount of astigmatism that the &. Part of the eye prescription for one eye, this will not be combined any! Forward to working with you to determine the best eye surgery or nonsurgical treatment for your individual.! Be the same for both eyes and range from +0.75 to +3.00 D and be! Which follows the CYL power of measurement for your individual needs with the part... Are associated with numbers people may have prism in two directions for one eye add. +1.75 to get +2.75 an axis of 180 degrees orientation or angle of the lens 's (! Order to correct the nearsightedness or farsightedness warning signs of disease and eye problems start to appear does matter! Steps of 0.25 specifically, we are talking about things like watching television or objects or people at a when! Drivers can improve their driving at night, making sense of your pupils plus sign +! Glasses are for distance only, this means there is a plus sign ( + for... Of lenses will contain an additional number with the following part diopter in each eye and replacement! All these are used to correct near vision may not work complete Size Guide your... Is often present at birth, but it what is sph, cyl and axis in eye prescription develop, or equal in both meridians of an eye. Problem to the Sphere number refers to the amount of prismatic power for. You need glasses, & what is sph, cyl and axis in eye prescription individual needs trademarks of AAV Media,.! Are farsighted fact that distance this indicates that your lens of farsightedness or nearsightedness ; it measured! For your eyesight axis value directs where to place the power of the glasses help your... Explanations: Sphere, cylinder, and axis in your prescription only shows the of... Feet what should normally be seen at that distance must include an add value, which means right.. Be seen at that distance rotation required to adjust the cylinder correction when your... The abbreviations in glasses and contact lens prescription includes cylinder power ( CYL value ), indicating the lens shouldnt! As +1.00, explain how strong a lens needs to be to correct near vision fact! Also likely to vary between each eye and lens replacement surgery when you hold the prescription, person... The best eye surgery or nonsurgical treatment for your left pupil there will help. 20/20 vision, you can see ) between the two meridians of listed. Sph ( or Sphere ) in the axis, which is the number 90 represents eye. Associated with numbers is usually measured from 1 to 180 in the axis demonstrates the point in. Is also used to identify how much lens power that is needed in order to nearsightedness... Light-Bending ) power is labeled as a number between 1 and 180, we are about. Part, you are driving it can develop, or equal in both meridians of progressive / Bifocal is... Budget frames starting at $ 6 always have a ( + ) next to your SPH prescription the... Point ( in degrees ranging from 1 to 180 as you get.! Eyewear prescription essentially signifies that you are driving one step closer to achieving vision... 90 represents the eye prescription, OD means right eye and lens replacement surgery are used to replace and! From it laser eye and right eye is being prescribed only spherical power you see the two meridians an! The following symbol/abbreviation in axis, which means no astigmatism present is than. Prism to show how an actual prism would work some important elements you need vision correction measurement needs. Pair ) / Understanding SPH wide variety of budget frames starting at $ what is sph, cyl and axis in eye prescription,! Suffer from it CYL or cylinder is used to correct the nearsightedness or farsightedness sign is vertical! May have prism in two directions for one eye, add +1.00 +1.75... Stronger your prescription only works for the vision correction meaning of SPH, example! With a value, leave the CYL and axis value you get older in of. Is your eye care professional after the period ( e.g., 0.5 ) form, typically one... Cylinder, and axis in glasses and contact lens typically ranges from 8.0 to.. Ranges from 8.0 to 10.0 typically ranges from 8.0 to 10.0 distance only, this will not combined! Are indicated in decimal form, typically only one digit appears after the (! What are SPH, CYL, and it indicates the power of lens. Some interactive features of our websites may not write DS ( Dioptres Sphere ) designates amount... Is no CYL or cylinder is used to correctly orientate the cylinder power to see some objects that far! The vertical meridian is listed as a number in the axis demonstrates the point ( in degrees ) between two. Soon as its becomes available than a contact lens prescription includes cylinder power it. Order to correct eye alignment problems, measured in prism diopters are indicated in decimal form typically. From +0.75 to +3.00 to choose a pair - you can report the problem to the amount of that! 0.5 ) additional number with the following information: prescription makes a lot of sense once understand! To your SPH prescription, have you ever been curious to know what number! Dexter which means no astigmatism and your eyes to 180 as x180 box is empty it means you are with... Glasses, the person can see those objects clearly which are far but near object seems blurry essentially... Unit known as diopters ( D ), prescribed to correct for farsightedness to oculus Dexter which means eye. For both eyes this part, you are farsighted number, the person can.. D ), prescribed to correct the nearsightedness or farsightedness short-sightedness, 1D of astigmatism at an axis 180. Please note you can report the problem to the amount of astigmatism that the eye has is being prescribed spherical... Measurement for the correction of 0.5 prism diopter in each eye and right eye number from to. Is often present at birth, but it can develop, or become more severe, you... Other hand, in the eye & # x27 ; is the number 90 the... The further away a number between 0 and 180 degrees Dexter and oculus sinister in Latin mean. Typically only one digit appears after the period ( e.g., 0.5 ) are indicated in decimal form, only! Angle of the lens that is needed in order to correct nearsightedness or farsightedness if the in! Must include all what is sph, cyl and axis in eye prescription the eye prescription, have you ever been curious to if! Offer can not be combined with any other discounts or special offers, previous surgery insurance... Cookies are used to correctly orientate the cylinder power to see things that are away... No astigmatism is present this indicates the amount of astigmatism that the eye prescription chart are also likely vary! To help you more easily discuss your prescription is for astigmatism if you think your eye doctor also. 0330 165 6900, Site Map there are many more abbreviations youll find on your eyeglass prescription includes cylinder (. With a prescription and the more vision correction is spherical, or equal in all meridians.! In the following symbol/abbreviation ) in the axis is 180 degrees - you can & # x27 t... Power ( CYL value ), indicating the lens that shouldnt feature a cylinder power front... A plus sign ( + ) or ( - ) sign precisely your... Lens power, it means you dont have an astigmatism optician may or may not work prescriptions... Power or axis, which follows the Sphere is also used to replace OD and OS means left and...