A pinch test can be done for body fat, now I’m going to teach you how to do a pinch test for your shoes. Below is a shoe that someone wore in today.
Not surprisingly, she hated these shoes, but has been wearing them for the past 6 months, because her podiatrist recommended them. Never mind that her podiatrist never measured her feet or had her bring in an assortment of shoes. Trustingly, this patient did what her podiatrist recommended, which was to wear these shoes which were too deep and too wide for her narrow feet.
If you are having foot or ankle pain, your shoes should fit snug to your feet, everywhere, including the toebox. If you can pinch a fold of upper in the toe-box area, then the shoe is too deep for you, no matter what anyone says.
Dr. Jenny Sanders Shoe Blog 
Hi! Your website is very informative. This post is very interesting. I was told by my podiatrist to buy shoes with large toe boxes to accommodate my bunions, but maybe that isn’t the way to go. I don’t require a lot of depth for my shoes, but maybe width for my bunions. Maybe my podiatrist recommended large toe boxes because a lot of dress shoes are made with a very hard and inflexible material. I’ve tried to wear shoes with large toe boxes and got blisters by the end of the day. That being said, what types of work/dress shoes would you recommend for someone with bunions?