Your eyeglasses may be too big if they are always sliding down your nose or falling off your face. Your eyes should look out from the center of the lens, and the temple arms should rest lightly against your face. If your eyes are more toward the nosepiece of the glasses, the glasses may be too big.
​As a rule of thumb your eyes should be nearly centered in the width of the lenses. A frame that is too wide will make your eyes look close set while a frame that is too narrow will exaggerate the width of your face. The first number of a frame measurement (51-18-140) is the width of one lens measured in millimeters.
And this has resulted in what's known as digital eye strain, tired and dry eyes from so much screen time. So some have turned to blue light-blocking glasses. ROSENFIELD: Both of the studies actually found that the blue-blocking filters have no effect, no significant effect on digital eye strain.
Choosing the correct lens size is crucial to finding the best fit from the Ray-Bans you choose. While not all Ray-Ban sunglasses come in different sizes, all of them do have sizes that will fit differently.
In summary, an Original Wayfarer comes in sizes 47mm, 50mm and 54mm. 47 being the smallest, and rarest to find. 50mm is the standard fit and will fit most adults perfectly. 54mm is the largest size available.
RB3025 58 Eyesize
The Aviator 58 Eyesize is considered a “Standard†size by Ray-Ban.“Small†– The 55mm is what would be considered the smallest lens for this adult model. It has a tight-fitting frame which is suitable for smaller head sizes. It should be noted that this is not a children's or junior frame, the children's option is under 'Junior Ray-Ban' on our website.
The 52 represents the width of each lens, which is 52mm. And if you really want to get technical, the height of each lens, or the “B†measurement, is about 36mm. The New Wayfarer 52 has a small-to-medium fit, which is generally a nice fit for women.
RB3025 58 Eyesize
The Aviator 58 Eyesize is considered a “Standard†size by Ray-Ban.One of the most reliable methods for spotting genuine Ray-Bans is to look for the serial number. This can be found on the inside of the left arm of the sunglasses, unless they're aviators, in which case the arms are too thin to fit a number.
The 50mm is considered a small / medium lens size, and the 54mm is considered a large frame. The RB2140 is also now available in a 47mm, which is a much smaller frame size. This style is also available in some polarized lens options.
Average range: approximately 40mm-62mm.
The frame should fit snugly on your ears and nose. They shouldn't pinch, squeeze or slide down. The weight of the sunglasses should be evenly distributed between your nose and ears. You shouldn't have indents on your nose when you take them off.
How do you know if Sunglasses fit right? If your sunglasses fit well, then they should fit snugly around your ears on your nose. They should not move or slide down and not create marks on your face when you remove them. You want them to be comfortable, and the frames' width should match the width of your face.
Your eyeglasses may be too big if they are always sliding down your nose or falling off your face. Your frames should align horizontally with your eyes and tilt slightly forward so the bottom of the frame is closer to the face than the top of the frame.
When measuring your face, you'll need to line a ruler up (on the millimeter side) with the location of your temple. The ruler shouldn't wrap around your head, instead, it should float in front of your face in the space where your temple is located. Then, measure straight across to the other temple.
