After the initial ideia I was the following thought:
Its such a 90's looking project!
Moving on, I searched for similar project and did find any! Indeed, the available comercial solutions for sugeons and others did not have voice automated lens. I found fancy models with many lens and lights, but all of the are manual.
After I while I talked with my dentist and she confirmed to me that there are no voice activated glasses to control the lens and lights.