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Numbers On Side Of Glasses

Are Glasses And Contact Prescriptions The Same

What Do the Numbers on Glasses Mean? | SportRx

How do I know my contact lens prescription?

Your prescription details can be found on the side of your contact lens box. If you dont have your box, were happy to contact your eye care provider to get a copy of your prescription for you.

Can I find my eye prescription online?

Thankfully, if you have a pretty basic prescription , theres a free tool from that can scan your current glasses.

What Do The Numbers On Glasses Mean

Youll find up to three numbers on glasses frames, and they stand for the lens width, bridge width, and temple length. These numbers are written on the inside of one arm and may be separated by spaces or dashes. Often, a small square shape separates the lens width from the bridge width.

You may see other letters or numbers on the arm, and these could refer to the frame model, color, brand, or manufacturer. Usually, the glasses measurements are easy to spot, as they follow the same order and have standard ranges, all expressed in millimeters. Heres how to read them.

What Do The Numbers On Ray

Generally located on the temple, nose bridge, or browline, Ray-Ban frames come with a code of letters and numbers permanently etched into them. Understanding this information could prove to be very important should your glasses ever happen to break. What do the numbers on Ray-Bans mean? Continue reading to find out!

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Exceptions To The Rule

While these numbers are usually the most prominent markings found on the interior of the frames of your glasses, there is a chance you will see other numbers listed. In most cases, these are manufacturer markings to denote specific features of the model. You might see numbers meant to highlight the design of the frames or the type of lens colors used. These numbers will usually be easy to differentiate from the dimensions of the glasses because the codes will usually be larger numbers than the measurements.

Frame Sizes: The Numbers

Karen Walker Number Two Sunglasses. I

Eyeglass frame sizes are indicated by three numbers stamped on the inside of your eyeglasses. These numbers usually appear on the inner surface of one of the frame temples that hold your glasses in place behind your ears.

Specifically, the frame size numbers of glasses are:

The key measurements that describe eyeglass sizes are the eye size, bridge width and temple length.

  • The temple length

  • All three frame measurements are specified in millimeters .

    For example, let’s say you see these three numbers on the inside of your frames: 48-19-140.

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    Why Is This Important To Know

    A common misconception among patients is that their eye size is fixed and that if the eye size of their current glasses is, say, 54 , then they need their new glasses to be a 54 as well, says Wolfe. This is not necessarily the case, since the AA and BB values interact with each other.

    Everyone comes in different shapes and sizes, and that includes the dimensions of your face. A pair of glasses that works well for one person may not fit comfortably for another. These simple facial measurements make finding a pair of snug glasses easier for the patient.

    For example, you may have a very rectangular frame with an eye size of 56, and a 16mm distance between lenses, explains Wolfe. If you wanted to switch to a rounder look, you may get a similar fit with a frame that has an eye size of 50, but an 18mm distance between the lenses. This is why its important to try frames on in person, rather than simply going by the eye size number of your current glasses.

    Especially when looking to purchase a new pair of glasses online, most people focus on the optical prescription. Dont get us wrong, the prescription is essential, but making sure the glasses sit correctly on your face is just as important. While you can use these sizes as a guide, every pair of glasses is different, so if youre looking for the best fit, definitely seek the guidance of a professional. Next, see if you can use FSA or HSA for glasses before you check out.

    Temple Length And Lens Measurements

    The temple length of your glasses is measured in millimeters and usually only varies between about five millimeters, with 135mm, 140mm, and 150mm being the most common. Your temples should fit comfortably horizontally and evenly along the side of your head, and the ends should fit comfortably on the outside of your ear. If the temples feel too loose or tight, you may need to go up or down a measurement.

    For lens sizes, smaller options are typically 50mm or less in width. Medium lenses are between 51mm and 54mm, and large lenses are usually wider than 55mm. When you try on glasses, make sure that your eyes are perfectly centered with the lenses. Frames that are too wide can make it seem as if your eyes are too close together, and narrow frames will make your eyes appear too wide-set. Use this simple guide for glasses measurements to help you find the perfect pair.

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    What Does 20/40 Vision Mean

    20/40 vision is a measurement of visual acuity, and while this vision test score may represent a less-than-perfect result, that doesnt mean you should consider it bad.

    Most people have heard of 20/20 vision, and some might know that 20/40 vision would be considered less sharp than thatbut far fewer people actually understand what these vision measurements truly mean. Its our hope that this guide will help you see this topic a little more clearly.

    Find Your Bridge Measurement

    How to Read your Frames – Glasses Frame Size Guide

    Look in the mirror or take a side-profile selfie to see where your nose bridge starts and how wide or narrow your nose is.

    If your bridge is low or narrow, your bridge size will be a low number . If it is high or wide, you will need a larger bridge number .

    Our low bridge fit glasses are designed specifically for people with a low nose bridge, high cheekbones, or wide faces.

    Find more tips on choosing glasses for your bridge fit size below.

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    How To Shop Online With Your Glasses Measurements

    Now that youve learned a little more about how to measure your glasses and find the right size for your face, youre ready to shop for glasses online.

    One other measurement youll need is your PD . This should be included with your prescription, but if its not you can also learn how to measure your PD yourself .

    What Are The Different Glasses Sizes

    At Specsavers we understand that every face is different. Thats why we have designed glasses frames in a family of sizes so that all faces from petite to broad can find their perfect match.

    Each of our product pages contain the specific frame measurements individual to that particular glasses frames. For some extra guidance, check out our sizing guides.

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    How To Measure Yourself For Frames That Fit Perfectly

    Perhaps youre shopping online but are not sure of how to measure yourself for a pair of glasses that fit well. All you need is a ruler for taking measurements.

  • Stand in front of a mirror and hold the ruler in line with your temple
  • Measure the distance between your temples in inches
  • Multiply your measured value by 25.4 to convert from inches to millimetres
  • Now that you have measured your face, calculate the total frame width of the glasses you want. This would be a sum of both the lenses width , plus the bridge width . Your frame size can vary by +/- 3mm from your measurement. Simply choose a frame size that is around the length of your face.

    Lets Talk About Bridge Measurement

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    Your glasses measurements are not complete without your bridge measurement. One of the most common issues people face when shopping for eyewear online is finding the perfect bridge fit.

    A bridge that is too tight can pinch the nose and cause your frames to sit too high on your face, while a bridge that is too wide keeps sliding down your face all day .

    Here, weve covered frequently asked questions about bridge fit.

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    The Numbers On Your Eyewear Are More Important Than You Think

    Hey, you, with the glasses! Have you ever noticed those tiny numbers printed on the arm of your frames? It might not always be important for the consumer to be familiar with the numbers on their products like a toaster or tires, but in the case of eyewear, those numbers can actually tell you a lot about your frames. Whether you have distance glasses, reading glasses, polarized sunglasses, or even blue light glasses, your eyewear is more than just a prescription. Knowing what these numbers mean can be especially important if you want to buy glasses online. So, lets break it down. Either way, you can add some new interesting facts to your repertoire.

    Is Your Pd Written On Your Glasses

    Your pupillary distance is a facial measurement unique to you, therefore will never be printed on your glasses. Your PD or dual PD is the total or combined distance between your pupils and is not determined by the size of a spectacle or sunglasses frame. The same goes for your ocular heights which the vertical component of your lens centration.

    For instructions on how to measure your PD,

    For instructions on how to measure your OC heights,

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    Can I Use My Current Pair Of Glasses To Find My Bridge Measurement

    Yes! If you currently wear acetate frames, your bridge measurement should be printed right on the glasses. You can usually find this number either along the arm or the nose bridge itself.

    Traditionally, the middle number corresponds to the bridge measurement and ranges between 16-21mm on most glasses. If your frames fit well, this number will work for you across the board.

    Get To Know Your Nose Bridge

    How To Find Your Frame Size? |

    You want glasses that will sit effortlessly on your nose without sliding up or down. Look at the bridge of your nose in the mirror and note how close your eyes are to it.

    If your nose is relatively narrow, youll want a narrower bridge. The opposite is true if your nose is wider. You can also take stock of where exactly the bridge of your nose is on your face: If its high up, you might look for glasses with a higher bridge, near the brow line. If its lower, you might be a great candidate for Low Bridge Fit frames.

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    Side Note: About Frame Height

    There is a fourth number worth mentioning. This is the lens height which is important in some instances. For example, bifocal and progressive lenses have multiple focus zones. So youll need to make sure you have enough vertical space to accommodate the prescription. Most multifocal glasses have a lens height of at least 30 mm.

    However, most manufacturers do not indicate the lens height on the frame. You may also not find this information on the vendors website. In this case, make sure that the lens is specifically designed for multifocal prescriptions.

    Alternatively, contact the vendor to find out if the lenses have sufficient height for your prescription.

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    How Does Frame Thickness Influence Your Bridge Measurement

    Bridge measurement is measured from the inside of the frame, which means a thick-rimmed frame with the same bridge size as a thin-rimmed frame will not fit the same.

    For example, if you know your bridge is 17mm and youre looking at a chunky frame with a 19mm bridge, it is very likely that it will be a suitable size for your bridge because it takes into account the extra rim.

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    What Are The Numbers On The Side Of My Glasses

    Specifically, the frame size numbers of glasses are: The key measurements that describe eyeglass sizes are the eye size, bridge width and temple length. All three frame measurements are specified in millimeters . For example, lets say you see these three numbers on the inside of your frames: 48-19-140.

    What is the difference between glasses and contact prescription?

    Contact lens prescriptions and eyeglass prescriptions are not the same. They are significantly different because eyeglass lenses are positioned approximately 12 millimeters from your eyes, whereas contact lenses rest directly on the surface of your eyes.

    Can I get a copy of my eye prescription from Walmart?

    You can get your eyes checked, prescription updated, and shop for glasses and contacts. The website allows you to order nonprescription readers and sunglasses that you may not find in the store. Walmart also sells contacts online through a separate website called Walmart Contacts.

    What Do The Numbers On Glasses Frames Mean

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    You may notice numbers such as 47-19-140 in the temple of glasses frames. But did you know these numbers actually describe the frame size? Glasses manufacturers typically use the same format to detail sizes. And its easy to find the correct frame size for your face type. Simply measure your face or check your current glasses to find the ideal size. Opticians and optometrists also rely on these numbers to determine the best fit.

    Weve put together this guide to help you understand exactly what these numbers mean and how to read them correctly.

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    Use Your Two Hands To Wear And Take Off The Glasses

    When you pick and wear glasses, you need to grab the temples with both hands and take them off. When you pick and wear glasses with one hand, it is easy to cause deformation and loosening of the glasses. According to the convention of international glasses design and manufacture, you should fold the left temple first. When placing glasses, keep the convex side of the lens up to avoid scratches on the lenses.

    Whats A Magnetic Card

    Cards with magnetic strips are generally the size of a standard credit card. These include gift cards, debit cards, and some ID and transit cards.

    GlassesUSA describes using a magnetic card to take certain measurements and images for the scanning app.

    We suggest using something without identifying markings and without account information on it.

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    What Do The Numbers On The Inside Of Glasses Frames Mean

    Do you ever wonder about the weird numbers on your glasses? Youll notice a number like 51-16-142 printed on the inside of the frames. You might think of it as a normal number but it says a lot about your glasses dimensions.

    These numbers denote three vital pieces of information about your glasses frame size. Heres our simple frame size guide to help you comprehend easily.

    Lens Diameter – It represents the horizontal width of the lenses. A normal lens diameter falls in the range of 40mm to 62mm.

    Bridge Width -It suggests about the distance of the lenses and the size of the nose bridge of the frames. A normal bridge width ranges from 14mm to 24 mm.

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    How To Find Your Glasses Size

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    Finding the ideal eyeglass frame size is super important when buying glasses online. But did you know its also super-simple? For the great majority of people M is the right size. It is very likely it is going to be the correct size for you too.

    To be sure, use one of the following techniques to find the size of the glasses:

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    How Your Glasses Frames Should Fit Your Face

    The top of your frames should be no higher than the line of your eyebrows and the width of the frames should not be wider than the overall width of your face at the temples.

    Getting the right bridge design and position is key to a comfortable fit.

    The lower edge of the frames shouldnt sit on your cheeks, otherwise they might rub or irritate.

    The size should be in proportion to your face. If you have a small face, dont choose large glasses.

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    What Do The Numbers On The Inside Of Glasses Mean

    • 55 will represent the width of the lens.
    • 18 will represent the width of the bridge.
    • 145 will represent the overall length of the arm.

    Info graphics source:

    The Bridge Width

    The bridge width is the minimum horizontal distance between the nasal surfaces of the rims on a plastic or metal frame, or the minimum horizontal distance between the nasal surfaces of the lenses in rimless frames.If a frame has adjustable nose pads on metal arms various modifications can be made in order to achieve a satisfactory fit, see our guide here on how to do this.

    The Lens Width

    The lens width is the distance between the vertical sides of a rectangle containing the lens shape. The sizes for the lens width and bridge width can usually be found on your current glasses by looking on the inside of the frame

    The Arm Width

    The arm length is measured from the dowel point to the extreme end of the side, this is made up of the length to the bend and the length of the drop to give the overall length of side.

    Overall Frame Width

    Another measurement to consider would be the overall width of the frames. Aside from 2x the lens width + the bridge width, the overall width is also dictated by factors such as the thickness of the rim of the frame and how swept out the lugs are.

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