http://www.huraw.com/square-eyeglass/
Square Eyeglass
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US $15.99
how do you properly read eyeglass frame size?
i have a a pair of Jeep glasses that i bought about 6 years ago for like 300 bucks. i am now looking for a new pair of frames online i read the size as this 42 ( theres a lil square shape) 23 '25'. i know what the first two numbers mean, but the '25' has me confused, i know my temple thing on another pair i have is 140, what does '25' mean?
Well, the first number is the milimeters of how wide your lense is in the horizontal measurement. The Square shape is just that it means "Box" or a 42 Box if we squared it up in a box. We sometimes call it a Box Size ( I am showing my age here....some newer opticians are gonna learn something here....) the number after the "Box is the Closest Distance between the lenses. We call it the DBL or the Distance between the lenses. That is simple enough. These are technical measurements and not really "sizing" measurements like you would buy clothes or jeans. a small lense sixe or a small dbl does not mean the frame is small. Sometime there can be a lot of frame there and the glasses can be pretty big. Sometimes there is little frame at all so they are actually smaller in fit. Does that make sense? The 145 is your temple length. Most read anywhere from 120-150 in mm in 5 mm incruments, from the start of the temple it's self to the end. Temples start in different places on a frame, so most of the time this is not a good measurement for fit either, as it is a technical measurement of the temple. The "25" might be a model number or a color number. Companies all have their own way of identifying color and models. Some do both or one or the other in numbers. Do I make any sense, or did I make it worse for you? I hope I helped!