![spectacle prescription spectacle prescription](https://virginiavisiontherapycenter.com/wp-content/uploads/2019/12/1.jpg)
There will be a number included on your prescription for each aspect of your vision that needs to be corrected. It’s used to correct presbyopia (the inability to see up close). It also tells the lens strength needed to fix it.ĪXIS- This describes the direction and degree of your astigmatism.ĪDD- This is the added magnifying power you need in the lower part of a multi-focal lens. This is a condition where the cornea is irregularly shaped and causes blurred or distorted vision. If you see this, this indicates astigmatism. If you happen to see the letters ADD, this is how much more power you need if you are getting bifocals or progressive lenses.ĬYL- This is short for cylinder. SPH- This is short for sphere, and basically tells you how powerful your prescription needs to be in order to correct your vision. O.U.- This is oculus uterque, meaning both eyes.Īlong the top, you might see different verbiage that generally has to do with measurements related to different aspects of your vision. O.S.- This is oculus sinister, meaning left eye. O.D.- This is oculus dexter, meaning right eye. It will contain terms, abbreviations, and numbers.Īlong the left-hand side, you might see these abbreviations. Most of the time you will find that your eyeglass prescription is written in a grid-like format. Whether you’ve worn glasses for years, or this is your first time, understanding your prescription will give you an insight into the health of your eyes as well as your overall health.
![spectacle prescription spectacle prescription](https://rx-safety.com/wp-content/uploads/2019/04/RX-X26-BK-BULK07-scaled.jpg)
You also happen to look at your prescription and start to wonder what all those letters and numbers exactly mean. Glasses prescriptions are written in many different ways.Now that you just finished having your eye exam, you have your prescription in your hand and you’re wondering what style eyeglass frames will look best on you. If you have a number in this box it means that you need two types of glasses for distance and reading. As we age, typically around 45 years old, our eyes lose the ability to focus at a reading distance and this number is the amount of correction required to see close up. This number relates to prescriptions which require a reading addition, hence the name ‘add’. This relates to the prism and the position of the lens. Most prescriptions will not have this number. This prism correction will prevent double vision and correct the imbalance. This means that there is a muscle imbalance between your eyes and that they do not work well together as a pair. This number relates to the astigmatism and how much correction is needed in degrees to correct it and will be a number between 1 - 180. This box may be blank on your prescription which means that you have perfectly round shaped eyes. The higher the number, the more irregular the shape of your eye. This refers to a condition called an ‘astigmatism’ and is caused by an irregular, or rugby ball shaped cornea. The number refers to the power of the lens and the higher the number, the stronger the prescription lens is. This indicates if you are long sighted (+) and can see things far away, or short sighted (-) and can see things close up. This box will have a ‘+’ or ‘– ‘symbol before the number. Here are the explanations of the different words and numbers: This image shows the various elements written on an eye prescription and what they mean:īoth of these are the same but are written in 2 different ways: NV - (Near Vision) in place of the ‘ADD’.Sometimes shorthand or abbreviations are used such as: OD - (Oculus Dextrus) for the right eye.OS - (Oculus Sinister) for the left eye.You will sometimes see the Latin terms used for your eyes which are: The unit of measurement for lenses is dioptres.All numbers will be written in 0.25 increments.
SPECTACLE PRESCRIPTION SERIES
The basics of an eye prescription are a series of numbers for your right eye (R), and your left eye (L). You may find boxes on our website that you don’t have on your prescription available but simply ignore them and select not required. Understanding what the numbers mean can help you to input the information correctly, select your lens type and consider the most suitable options.Įntering the information is very easy and is simply a matter of copying the numbers from your prescription into the appropriate boxes. To most people, a prescription is just a series of numbers.
![spectacle prescription spectacle prescription](https://static.payneglasses.com/media/catalog/product/a/n/angle-front_1571729074614_1604474288041.jpg)
You are entitled to a copy of it once you've had your test and should be given a copy without having to ask nor should the optician imply that you have to buy your glasses from them. You've been to the optician, had your eyes tested and have the prescription in your hand.