Click the chat icon  on bottom right of your screen for assistance or follow these steps to take your (PD)

Your prescription and pupillary distance (PD) come from your eye doctor (optometrist). 

Single vision prescriptions are for patients who have trouble seeing either near or far (but not both), and the prescription will not have a value in the ADD column.

Learn to measure your own PD and frame size. Don't worry we're going to share tips and tools that will help you find the perfect fitting frame. 

STRESS FREE METHOD: If you already wear eyeglasses and they fit well. Using a millimeter ruler measure the entire front of the frame, from the point that sticks out farthest on the left, to the point that sticks out farthest on the right or Screw to Screw on both ends of the front of the frame. The average adult frame width is 136-138mm and kids frame width is 110-127mm. 

 Your PD measurement is also useful in helping you pick frame sizes. You can multiply your Pupillary Distance by 2 and use this new number to find the Frame Width. Your eyes will be centered in the frame.

PD = 62 mm

If you don’t have your PD from your eye doctor, you can measure it yourself with the help of a friend. Use a MILLIMETER RULER. 

1

Stand 8 in. away from the mirror.

2

With your face straight, hold the ruler against your brow.

3

Close your right eye and align the ruler’s zero to the center of your left pupil.

4

While looking straight, close your left eye and open your right eye.

5

Read the mm line that lines up with the center of your right pupil. This number is your PD.

A Few Things to Note

• Measure your PD 3-4 times to ensure it's accurate and consistent.
• Range of Adult PD: 54-74 mm
• Range of Child PD: 43-58 

Click the chat icon  on bottom right of your screen for assistance or follow these steps to oder your eyeglasses.

Progressives unlike bifocals, there is no visible line between each viewing area. They have a seamless, invisible design where the power “progressively” changes throughout the lens.How Do I Measure My Progressive Lens Segment Height Myself?  Segment Height, also known as Seg Height or SH, is the vertical measurement in millimeters from the bottom of the lens in your frames, to center of the pupil.    If you would like to measure your own segment height then you will need to have the frame in hand, because you can only measure it while the glasses are on your head. You can either purchase the frame without prescription lenses first.  "Non-Rx Demo Lenses" are included with the selected frame.  (click "Add Frame Only." on the product page) and then send them back to have your prescription lenses put in after the segment height has been measured.  Or if you have already received your frames then start with the measurements. "

             

When selecting a frame for progressives, keep this in mind:

30mm
Min. Lens Height

Proper Width for Your Face

Segment Height Accuracy

Make sure frame is sitting on your face properly.  3 point touch right ear left ear and nose bridge. Adjust frame to ensure proper sitting.

Follow the instructions below to measure your own Segment Height at home.

Put the glasses on your face and adjust them so that they sit comfortably.

Stand about 8 inches (20 cm) away from a well lit mirror with your face parallel and square to the mirror.

Align the millimeter ruler’s zero (0) measurement using a to the lowest point at the bottom of your left lens, keeping it exactly vertical.

Make sure you are measuring from the
bottom of the clear lens, not the bottom of the frame (see graphic).

Using a plastic ruler, this OC measurement would be approximately 29mm from the centre of his pupil to the bottom of his lens. 

Stare straight ahead and read the millimeter mark inline with the center of your pupil. This is your segment height measurement for these frames. 

(Quick tip:  you can easily measure it yourself. See below for a diagram on how to dot the lenses. Use a wet or dry erase sharpie. Do not use permanent marker so you can repeat process a few times. Then just measure the dotted lenses to the bottom of the lenses. When you send them back do not leave any markings on lenses. Write down your measurement with a pencil and paper.

Repeat these steps at least 3 to 5 times to get an accurate and consistent measurement. Make sure your head and the ruler do not move after lining up the zero (0) measurement with the bottom of your left lens until you note your measurement. Ask a friend to help if you are having trouble.

 

MULTIFOCAL LENSES:

The multifocal lens contains two or more lens powers within the lens for correcting vision at different distances. These include bifocals, trifocals, progressive addition lenses. These are prescribed when someone needs to see clearly at two or more distances

Bifocals  

The prescription ground in the lens corrects both near and distance vision.

The lined bifocal offers a larger reading area.

If you would like to measure your own segment height then you will need to have the frame in hand, because you can only measure it while the glasses are on your head. You can either purchase the frame without prescription lenses first.  "Non-Rx Demo Lenses" are included with the selected frame.  (click "Add Frame Only." on the product page) and then send them back to have your prescription lenses put in after the segment height has been measured.  Or if you have already received your frames then start with the measurements. "

When you send them back do not leave any markings on lenses. Write down your measurement with a pencil and paper. Enter it in the seg. height drop down menu during ordering.

Frame Tips

When selecting a frame for bifocals keep this in mind:

30mm
Minimum Lens Height. Click tab "Frame Size Chart" for proper Width for Your Face.