The 'AXIS' is related to the cylinder curvature and shows the direction of where the eye is curved. Find an eyecare professional and book online in minutes! Sphere, Cylinder, and Axis on Eye Prescriptions Sphere: The sphere (SPH) on your prescription indicates the lens power you need to see clearly. Contact lens prescriptions provide the same information as eyeglass prescriptions, with the addition of some extra numbers. Axis. The SPH and CYL values indicate a combination of small degrees of nearsightedness and astigmatism in each eye, with your right eye being slightly more nearsighted. 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 . So what's an astigmatism? No cylinder power or axis, which means no astigmatism is present. 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. It is calculated by substracting the far distance Sphere from the near distance Sphere. What is SPH and CYL in eye prescription? In nearsightedness, the person can see those objects clearly which are near to him but the far objects are blurry. There will also be a number in the axis column thats needed for astigmatism correction. + .50 diopter sphere corrects for farsighted or presbyopia. If the human eye acuity is 20/200, this is called the bad eye axis and is considered the blind person. It is possible to use a different brand of contact lens in each eye based on the unique needs of each eye. On some rare occasions, you may find an AXIS value with a decimal place or fraction. What is the normal eye SPH, CYL, and Axis value? Analytics cookies are used to understand how you interact with our content. These are abbreviations for the Latin terms oculus dexter and oculus sinister. The CYL stands for "Cylinder". The axis is a number on your eye prescription to indicate the direction any cylindrical power in your lenses must be positioned. In eye prescription, what does CYL means? The numbers on your eyeglass prescription relate to the shape of your eyes and strength of your vision. No changes with my medications, screen time, general health, diet, activity level, even my stress level is stable etc. When the shape of the human eye cornea changes, the large changes in the measurement of the axis is seen though, this is rare. A nearsighted prescription will feature a number with a minus (-) symbol in the sphere box. The value may be as high as 10 and may go up in steps of or 1 Prism Dioptres. The global pandemic limited access to regular eye exams. Page published on Wednesday, February 27, 2019. Reading your eyeglass prescription can feel like reading a foreign language written in math. Privacy, Eye Testing and Optical Coherence Tomography (OCT). Astigmatism correction is not spherical. 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). AXIS refers to the angle of the astigmatism in your eye and has nothing to do with the severity of your prescription. Please check again if the information you entered is correct. What does SPH mean for glasses? The further away the number is from zero (assuming no correction is needed), the stronger the prescription is. It is measured in diopters and suggests that you need a spherical correction for your sight. Sphere refers to the power of your lens (measured in dioptre units) to correct the degree of short or long sight you have. Copyright 2022 VisionCenter.org. It's defined by a number between 1 and 180 degrees. Warby Parker has stylish, high-quality frames at affordable prices. You may find a number listed which helps determine the amount of lens power that is needed to correct astigmatism. The sphere is the indication of how strong the lenses need to be in order to correct the vision. If you are shortsighted, the number under the abbreviation will include a (-) sign. 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. OD is short for the Latin term oculus dexter which means right eye. Prism refers to the amount of prismatic power needed to correct eye alignment problems, measured in prism diopters. The Sphere is also used to correct the nearsightedness or farsightedness. If the number is written, this is the indication of the usage of eye contact. Sphere is basically a measure of how strong your prescription needs to be. In the third part, we will show you what the Axis in glasses is. A minus (-) symbol next to this number means you're nearsighted, and a plus (+) symbol means the prescription is meant to correct farsightedness. The sphere (Sph) specifies the strength of lens required to correct your focus - a plus sphere to correct long-sightedness (hyperopic - difficulty focusing on close objects) and a minus to correct short sightedness (myopia - difficulty focusing on distant objects.) That information can only be obtained through a contact lens fitting, an additional procedure that can be performed during your eye doctor visit. Sphere means the spherical correction where the meridians of the human eye are equal. Cylinder power always follows Sphere power in an eyeglass prescription. If your prescription only shows the SPH box with a value, leave the CYL and AXIS blank. After reading this part, you may get the answer. Enter your email address to make it happen. They may only write it once, but it normally applies to both eyes and is almost always the same value for both eyes (e.g. Only a small percentage of eyeglass prescriptions include a prism measurement. Diameter values range between 13 and 15. What Are the Different Types of Prescriptions? Existing cardholders should see their credit card agreements for their applicable terms. It always follows the sphere power on an eyeglass prescription. If you do have a CYL number you will also have an axis number. Sphere (SPH) The sphere column is often abbreviated as SPH. 14% OFF Frames + 30% OFF BlueGuard Details, The sphere (Sph) specifies the strength of lens required to correct your focus - a plus sphere to correct long-sightedness (hyperopic - difficulty focusing on close objects) and a minus to correct short sightedness (myopia - difficulty focusing on distant objects.). These numbers typically are the same for both eyes and range from +0.75 to +3.00. If you are farsighted, you will see a plus sign(+) next to the Sphere number. Contact an eye doctor if you need medical attention. This can be positive (+) for long sight or negative (-) for short sight. Cylindrical correction means that one meridian has no added power, while the meridian perpendicular to it has the maximum lens curvature and power added to it. What does SPH mean for glasses? A contact lens prescription can only be obtained from a contact lens consultation and fitting. 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. Of course, the optometrist will use a range of tests and eye examinations to check the health of . If there is no number written under the CYL part, this means you are free from astigmatism and need no eye contact. 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. Through her writing, Dr. Huang enjoys educating patients on how to lead healthier and happier lives. An eye prescription specifies the values needed for your corrective eyewear. If not, keep on your reading and you will find the full explanations in the following part. This number is always positive, even if it doesnt have a plus sign (+) in front of it. In the right eye, the prism is base down (BD); in the left eye, it's base up (BU). Once your eye exam is complete, your eye doctor should be able to give you an accurate eyeglass or contact lens prescription right away. 1. The base curvature and diameter of the lens are indicated on a contact lens prescription, as are the expiration date and brand of lens. If the number under this heading has a plus sign (+), you are farsighted. This doctor chose to write "SPH," to confirm the right eye is being prescribed only spherical power. 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. Prismatic correction of 0.5 prism diopter in each eye. Some people will be most likely to have the same number for both eyes. When an eyeglass prescription has cylinder power (CYL value), the axis value directs where to place the power in the lenses. It always follows the sphere power on an eyeglass prescription. These digits can be anywhere between 0 and 180 degrees such as 020, 090, 120 or 170 etc. These abbreviated terms are common on prescriptions for glasses, contact lenses and eye medicines, but some doctors and clinics have opted to modernize their eye prescriptions by using RE (right eye) and LE (left eye) instead of OD and OS. 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. Do you know how to read your prescriptions? to Fri (9am - 5pm) It usually occurs along with near or farsightedness. This indicates the amount of lens power, measured in diopters (D), prescribed to correct nearsightedness or farsightedness. If you need glasses, the optometrist will write you a prescription. The cylinder is the indication of the condition, astigmatism, in which the cornea is shaped irregularly causing distorted or blurred vision. What does Axis mean for glasses? If you need a prescription, you can obtain one by scheduling an eye exam with . If this box is empty it means you have no astigmatism and your eyes are . If there is a minus sign next to your SPH prescription, it means you are nearsighted. Eye doctors examine eyes to diagnose vision problems and refractive errors. This number will appear as a decimal (0.5) or fraction (), followed by two letters indicating the base direction: There may be additional information written by your optometrist or ophthalmologist regarding your eye health. Let's look at an example prescription chart: In the right eye (OD), the eye doctor prescribed: -2.00 D sphere for the correction of nearsightedness. What is Cylinder in glasses? Vision Center is funded by our readers. The light falls at the right place on their retina. Sphere power, cylinder power and add power always appear in diopters. This stops light from focusing properly on your retina and makes your vision blurry. Sphere (SPH) The number listed under the sphere (SPH) category indicates how strong your vision prescription is. Acuity what is sph, cyl and axis in eye prescription 20/200, this means you are farsighted, you will also an... To use a range of tests and eye examinations to check the of! 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