So, I also have surgical loupes I use occasionally and here are my experiences:The Carl Zeiss loupes are used by dentists and other medical professionals. My field of view is about 40mm. There are some brands that have special wide FOV.
Designs for visions have an extensive range.
https://www.designsforvision.com/SurgHtml/S-Panoramic.htm
I personally don’t like the glasses mounted loupes, as they are heavy on the nose and ears. Head mounted are much better.
I prefer the ones that mount on glasses because then I can have corrected vision (reading glasses) for seeing in a full range of view, and then I can look down and through the loupes for magnification. If you put a tool down and want to find it to pick it up again you will quickly learn how helpful this is...
I use 2.5x and 3x magnification and that gives me about 45-50 mm field of view at about 15-18 inches. This is rather small, but I only wear them for super-high-precision work. My regular reading glasses and good lighting works for normal model work.
I don't care for illumination ON the glasses - just too many things going on for me. Of note: adding the light doesn't add much weight because the battery pack is separate. It does add cost.
Speaking of which - these things are rather expensive so I don't think I would have them if there wasn't a cross-use for me professionally. Their use is rather limited in my experience, and they take some getting used to (they will make you seasick until you get accustomed to using something like this).
An entry-level brand that is quite popular for its reasonable price is Lumadent:
High-Precision Dental Loupes and Surgical Loupes by LumaDent
Our premium dentist loupes and surgical loupes offers high precision and comfort. Award-winning loupes ideal for dentists, surgeons, hygienists & students.
www.lumadent.com
You can customize for vision correction (of the host glasses), magnification, lighting, working length (hold something you are working on and measure how far that is from your eyes). Lots of nice features.
I hope this helps...