I think the spectacle mounted BIO is an extremely versatile tool and can do general indirect examination of the eye.
I also think it isn't the equipment that can define a practitioner. A good practitioner can use any kind of equipment.
That's not exactly true. A smart practitioner uses the best tools available to give the best possible exam for his/her patients. Naturally cost plays a part in this so you do what you can.
I don't think a spec mount BIO would give any less of an exam. It's a personal preference that you have to try out yourself. However, I wouldn't buy one because I just don't think they are as stable as the head strap design. If I'm going to spend over $1,000 for something I want it to be something that I'm going to be 100% satisfied with.
Take the Keeler Pulsair. While it seems like a great concept having a portable NCT, I decided against buying one because the accuracy and ease of use of the table top variety won out over portability factor. It seems like the Pulsair is more trouble than it's worth--especially since I wouldn't be the one using the device--my techs would. Clearly, this was the case with most docs, otherwise it would have won out over the more expensive table top versions which completely dominate the market (they are at least 1.5 to 2 times as much).
So when you look for equipment, find out what is the most popular and figure out why. Doctors do not spend their precious capital frivolously. You really have to get the best bang for your hard earned dollars. Of course ask around, try out the instruments at the shows, and even get a rep to let him/her bring one into your office for a test drive for free (this apparently sells a lot of product).
My advice about any instrument... Life is too short. Pay a little more for the better products because you've got greater things to worry about. Getting a little better resolution or clarity, a product that doesn't break down so easily, or getting extra options that make for a better overall exam are worth it in the long run.
I think you will all get the idea when you start practicing...
😀