Eyebobs and (I think) Warby Parker do show all measurements. And usually you can sort by general size (small, medium, large) if you know roughly where your size fits.

I bought spare glasses at Zenni, and I do not remember entering lens height, although I did enter pupillary distance, which I measured myself, although I did confirm it with an earlier prescription.

I believe that Zenni uses a photo of your face that has the frames you choose superimposed on it to determine lens height, but I am not sure about this. I will say that the Zenni glasses to not have the correct lens height, as I have to lift my glasses up in order to be able to read with them on, or I can tilt my head up. I have another pair of glasses that I took to an optical store to have lenses put in them, which ended up costing $700, but they got the lens height exactly right. I had also taken them frames that I already had, and it still cost me $700 just for the lenses, and so I won't be going back to that store (in Palm Springs).

If you really care about lens height, I think it is best if you buy your lenses at a store rather than on line, but get pricing first - something that I should have done.

The reason on line sites do not list lens height is that it varies from one frame style to another, whereas pupillary distance does not.

I just bought some from Eyebuydirect and they offer the sizes as well. They also have a program where you can use a picture or your camera to see how the glasses would look on you. Mine were a perfect fit when I got them.

amicus, I think I understand your question. Others seem to be talking about style suitability and frame fit.

Here's my experience - with progressive lenses that I like, where the vertical top of the special lens section starts to change to close up viewing is placed is critical. Too high and it obscures normal vision. Too low and the near vision section of the lens isn't usable. Getting new glasses every few years for decades, I found that the line was getting screwed up about 2 out of 3 times, requiring annoying (to me) re-dos. It occurred to me finally that I needed to take the bull by the horns. My normal approach now goes something like this "Let's look at the glasses I have now, please measure down from where my pupil is to where the transition starts. I'll switch to the new frames, mark that spot on the plain lens in it now. Now measure up from the bottom of the lens to where that spot is. Please have the lab make the lens so that that's the top of the special section". That fixed the problem except for the more recent Costco purchase I've mentioned, where they did it as I asked but the lab ignored the spec requested and placed it much too high. I put on the new glasses, started toward the door, and turned around to go back to the counter to return them and ask for a re-do. The optician measured what was done and found that the special request had not been followed.

If your lenses have three different corrective field areas vertically, I'm skeptical that you could get glasses with these areas properly placed on each lens, without someone physically in front of you measuring vertical distances down from each pupil. Maybe I'm wrong. Good luck.

Zenni does provide specs for height, width, bridge space, etc. on their frames - along with pupillary distance. I used a pair of old glasses with a good fit as a comparison guide when I ordered from them and got a great fit - twice. You can upload your own photo to do a virtual try on too. And they send you a handy measuring tool with your order, for future use.

Pupillary distance is horizontal - the placing of different fields in a lens is vertical.

The OP was very clear that she needs to know the "lens height", which has always been given by every online eyeglass site I've visited. One needs to measure the frame height and width and the bridge width of the eyeglasses they're using now, and compare them to the small, medium and large sizes. You can then view all frames in your chosen category, or filter the results by lens height, prescription type ( single vision, bifocal, progressive), frame material, etc. Each pair of frames should list the lens height and width.

At firmoo.com you can click "progressive" on their homepage and see all the frames that will accommodate multiple prescriptions, if that's what the OP is looking for.

woodrose, I understand that. She said she wanted a frame with more height, more vertical space to accommodate the different optics to be put into the lens at different points from top to bottom. My comments shared my experiences that opticians and labs can't be expected to automatically find the right place for each different optical area that the patient will find optimal. And that for me, without my guidance that I now give they usually didn't.

Oh boy, I somehow managed to miss clicking on the 'detailed description' of the site I visited, and just saw the standard 3 numbers on the arms of the glasses, for lens width, nose bridge width and arm length. Sheepishly thanking you all for pointing out that lens height measurement IS indeed listed and was totally my oversight!

Although I know the measurements on my current glasses and also my pupillary distance measurement, I'm realizing I can't expect the lens crafter to read my mind, from an online order. I'm sure they'd put the right prescriptions within the portions of the lens that they are normally allotted. But if I find some glasses with more height in the lens than I currently have, I'm hoping to get a little extra room to allot more space for mid and close up vision, and a bit less for distance, which barely needs correcting.

So Elmer I think you're right and I'd better see an optician in person, so I can ask if I can get a more customized lens. Maybe I can still buy the frames online, if an optical store here is ok with just making the lenses for me, even if I didn't buy the frames from them.

"But if I find some glasses with more height in the lens than I currently have, I'm hoping to get a little extra room to allot more space for mid and close up vision, and a bit less for distance, which barely needs correcting."

Exactly! I thought it might be something like that you had in mind. Thanks for clarifying it. You'll have better luck seeing someone in person who will stand behind the work done and redo it if you're not happy.

Your distance vision may not need much correcting but if the line that starts the intermediate vision is too high, you'll have only a narrow slit at the top to look through. My preference is yours, upside down. I want only a small area for close up at the bottom (nearsighted me can take off my glasses and read just fine if need be) but I want a large field of view through the middle and top of the lenses for other than close up use.

I don't know practices in Canada. Here, some opticians will put lenses into someone else's frames (plain glass needs to be in the frame, they use it like a sewing pattern to cut and shape the lenses to fit inside the frame) and some won't. Good luck.

Elmer, thanks, as I might need a bit of luck to find a store that's willing to put their lenses in frames I bought elsewhere. The optical stores near me are kind of hoity toity (as my mother would have said) so they might take offense to me only giving them half my business, so to speak. But I have no guilt if I buy online, as the markup price for eyeglass frames is so high, and the stores near me aren't family owned franchises, they're chain stores. I don't mind spending money on great quality lenses, but I'm not willing to pay twice the price for the same frames. Hopefully it'll all work out for me!

At this point, I'm willing to bet most places are happy for any kind of business.

"I might need a bit of luck to find a store that's willing to put their lenses in frames I bought elsewhere."

I wear gas-permeable contacts, but have "back up" glasses to wear when I don't have my contacts in. I have provided frames to my optometrist's office many times. They have no problem with putting lenses in my frames.

I don't think it's necessarily a matter of being or not being hard up for business. Once some years ago when I tried to get lenses replaced for sunglasses and was turned down, I was told the particular place didn't do it because sometimes the process of replacing lenses can break frames (either by them, in transit, or by the lab) and if they're frames they don't sell, they'd have no way to remedy the damage done. Not worth the risk, they said. Maybe that was just that one place.