Question

In any economy, what are medicine, eye exams, and massage sessions examples of?

Answer 1

I think it is an example of an economy's profit. 

Answer 2

Health care or health services or health industry. They're all pretty much the same in context to economics, or an economy.

In larger and developed nations, the health industry can composeup to 10% or more of the GDP, which is a massive chunk of the economy.

Hope this helps!