You may be wondering if the money you've been carefully putting into a health savings account (HSA) or flexible spending account (FSA) is in jeopardy. Some of these accounts have a "use it or lose it" aspect to them, requiring you to spend what you put into them before the calendar year is out.

If you have money sitting in your account, you may not be sure what to do with it. The good news is there are a lot of unexpected avenues for spending those unused funds, including vision care through eyecarecenter.

To help you decide how to use these dollars, here's a look at exactly how FSAs and HSAs work and what vision costs you can cover with them. While there are some differences between HSAs and FSAs when it comes to vision costs, the team at eyecarecenter has broken it down for you below.