I have been looking for some perscription sunglasses for my son, and thought I would just use the measurements off his glasses he wears now, which are 57-19-145, is there any way to search using the measurements as each time I find a pair of glasses that I think he might like the measurements are all wrong.

Normally,to decide the frame size.the most important measurements are the total width which is the distance between temple to temple. By selecting frame with similar measurement, it will fit him perfectly.Most online store have"search by size" function.You could easily find it.

I have made my choice and have selected glasses NT1045 for my husbands sunglasses, I just wanted to get your opinion. Hi normal glasses that he wears are 55-19-145 and 145 total width and lens height 35.
These glasses will be worn as sunglasses so I don't think the 40 lense height will matter. What do you think, are these glasses very big?