Women's sunglasses, like all eyewear, are measured using a system of three numbers, typically printed on the inside of the temple arm. These numbers, always in millimeters (mm), represent the lens width, bridge width, and temple length.

There is no single "standard" dimension for women's sunglasses, as the ideal size depends on individual face shape, size, and personal style. However, here's a breakdown of the typical ranges and what each measurement means:

1. Lens Width (or Eye Size) This is the horizontal width of a single lens, measured at its widest point. It's often the most crucial number in determining the overall size and fit of the sunglasses.

• Small: 47-52 mm

• Medium (or Average): 53-55 mm

• Large (or Oversized): 56 mm and up

2. Bridge Width This is the distance between the two lenses, where the frame rests on your nose. A proper fit ensures the glasses sit comfortably without pinching or sliding down.

• Typical range is 16-24 mm.

3. Temple Length This is the length of the "arm" of the glasses, from the hinge to the very tip. It's vital for ensuring the glasses sit comfortably and securely over your ears.

• Typical range is 135-150 mm.

When shopping for sunglasses, you may also encounter other measurements like:

• Lens Height: The vertical height of the lens at its tallest point. This is particularly important for progressive or bifocal lenses.

• Total Frame Width: The overall width of the glasses from one temple to the other.

Tips for Finding the Right Fit:

• Check your current glasses: If you have a pair of sunglasses or eyeglasses that fit you well, you can use those measurements as a starting point. The three numbers are usually printed on the inside of the temple arm.

• Measure your face: Use a ruler to measure the distance from one temple to the other, just below your eyes. This will give you an idea of your face width and help you determine what size frame might be a good fit.

• Consider your face shape: Different face shapes are best complemented by distinct frame styles. For example, people with wider faces may prefer larger frames, while those with narrower faces may find smaller frames more comfortable and flattering.