medical health eye and vision conditions

# What are the 3 numbers on my glasses?

Last Updated: 11th April, 2020

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What those three numbers mean: the first is thewidth of each lens at its widest point; the second, the distancebetween the lenses (the nose bridge). The third is the length ofthe temple, the piece that fits over your ear. All thesemeasurements are in millimeters.

Similarly, what do the 3 numbers on glasses mean?

All three of these measurements are specified inmillimeters (mm). For example, let's say you see these threenumbers on the inside of your frames: 48-19-140. The firstnumber — the eye size — represents the horizontal widthof the lenses.

Beside above, how do I know my glasses Size? Glasses Frame Measurements – Finding The RightFit

1. The lens diameter is the width of the lens (in mm), measuredfrom the bridge. It can be a matter of personal choice, but it'salso determined by your frame style.
2. The bridge width is the gap above your nose between thelenses.
3. The length of the side is usually one of three standards– 135, 140 or 145mm.

People also ask, what do the numbers on my glasses arm mean?

The numbers beneath the frames reflect the SIZEMEASUREMENTS in millimeters (mm). THE FIRST NUMBER (ex.54) =the width of the lenses. THE SECOND NUMBER (ex.15) = thedistance between the lenses. THE THIRD NUMBER (ex.140) = thelength of the temple arm including the portion going behindthe ear.

Pupillary Distance (PD) Don't worry if your glasses prescription doesn'tinclude your PD, we can show you how to measure it byyourself. PD, or pupillary distance, refers to thedistance in millimeters between the center of one pupil tothe center of the other. *Note that theaverage PD is between 57 and 65mm.

Professional

## How do you read the numbers on glasses?

Steps
1. Look for a series of numbers on the inside of yourglasses.
3. Locate the second 2-digit number, or the bridge size.
4. Find the third number, which measures your glasses' armlength.

Professional

## What's a bad eye prescription?

How bad is the spherical prescription? Thenumber is in “diopters” but you don't need to know toomuch about that, it's a measure of how much the curvature of theeye is off from normal. Basically, the higher the number(ignoring the plus or minus), the worse theprescription.

Professional

## What do the numbers on Ray Bans mean?

Ray-Ban Sizing
You'll see three numbers on most models, a bitlike a sort code (eg, 50-20-150). The first is the lens diameter,the second is the width of the bridge across your nose and thethird, if there is one, is the length of the temples (or arms)– all in millimetres.

Explainer

## How do you read sunglasses size?

Eyewear Measurements
1. Eye size is the width of the lenses at the widest part. It'sthe most common measurement you'll see in reference to the size ofglasses.
2. Bridge size measures the piece of metal or plastic thatconnects the lenses.
3. Temple size is the measurement of the arms of thesunglasses.

Explainer

## What vision is better than 20 20?

A person with 20/20 vision is able to see letters1/10th as large as someone with 20/200 vision. 20/20is not the best possible eyesight however, for example,20/15 vision is better than 20/20. A person with 20/15vision can see objects at 20 feet that a person with20/20 vision can only see at 15 feet.

Explainer

## What is the meaning of progressive lenses?

In other words, progressive lenses will help yousee clearly at all distances without those annoying (andage-defining) "bifocal lines" that are visible bifocals andtrifocals. Progressive lenses are line-free multifocals thathave a seamless progression of added magnifying power forintermediate and near vision.

Pundit

## What is add for progressive lenses?

The ADD column (which stands for additionalmagnifying in a multi-focal Rx) is +2.00 in the sample Rx above. Ifyou've got an eyeglass prescription for bifocal ormulti-focal/progressives, your lens power correctsfor near, far, and sometimes intermediate range vision. You'll havea number in the ADD column.

Pundit

## What is eye glasses Size?

Eye size is the horizontal width of the frame'slens in millimeters. Usually, the eye size ranges from 40 mmto 60 mm.

Pundit

## How do I know the size of my Ray Bans?

Where do I find the size ? Most of theRay-Ban sunglasses have the size printed onthe inside of the left temple . These three numbers (52-18 140 forexample) are written in millimeters and match : the lens diameter,the brige width and the length of the temple.

Pundit

## Where should glasses sit on nose?

Your eyes should be centered in the lens. BridgeSize is the measurement of the glasses bridge, or the areabetween the lenses that goes over your nose. The bridge ofthe glasses should sit flush with the bridge of yournose.

Pundit

## Does Bridge size matter in glasses?

Yes! If you currently wear acetate frames, yourbridge measurement should be printed right on theglasses. You can usually find this number either along thearm or the nose bridge itself. Traditionally, the middlenumber corresponds to the bridge measurement and is betweenabout 16-21 mm on most glasses.

Teacher

## What is a low nose bridge?

A low nose bridge is like a flat nosewhich is why glasses don't fit as good. It has little or nothing todo with your nose length. Although, those with shorternoses may have flatter or lower nose bridges morecommonly.

Teacher

## How do you measure pupillary distance with old glasses?

Look straight ahead into the mirror and position theruler over the bridge of your nose. Starting with the right eye,line up the zero end of the ruler at your pupil; measure thedistance from your right to your left pupil. The millimeternumber that lines up with your left pupil is the measurementyou want.

Teacher

## How do I find the right glasses for my face?

Choose frames that complement the shape of yourface.
1. Soft, round faces look best with frames that have hard angles,like square or rectangular frames.
2. Square and rectangle faces look nice with frames that balancethe hard lines of the face, so look for round or oval frames.

Teacher

## Should glasses cover your eyebrows?

The top of your glasses frame shouldfollow the line of your eyebrows. Sunglasses shouldalways cover your eyebrows, or risk looking cartoonish.)Eyes should sit at the centre of each frame. Don't followguidelines solely based on the shape of yourface.

Reviewer

## How do I measure myself for glasses?

The bridge is the small area that rests on the bridge ofyour nose. Measure only the part of the eyeglass framesbetween the lenses. The temple arms extend from the front of theglasses behind your ears. Measure the entire length,from the hinge to the end.

Reviewer

## How do you determine your frame size?

Wrap your thumb and middle finger around thesmallest part of your wrist. If they overlap, you are smallframed. If they touch, you are medium framed. If you can barely getthem to touch or they are not touching, you have a largeframe.

Reviewer

## How do you fit glasses?

Your frame should rest with equal weight on your earsand nose, gripping your temples lightly. You can see the correctfit visually when the width of the frame is equal to thewidth of your face from ear to ear, and there is no gap, or only avery slight gap, between the top of your nose and the bridge of theframe.

Reviewer

## How do I know if my glasses fit properly?

Arm Length. Glasses' arms (also known as“temples”) should extend straight back to yourears and only touch the side of your head just infront of your ears. The arms must also not curve tooearly; if they do, this will push the glasses down onyour nose.

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11th April, 2020

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