Built-in Camera and Remote

Hello,

The other day I was trying to use my Apple Remote on my 2010 27" iMac and it no longer worked. Changed the battery, started troubleshooting and in the process learned that my built in camera no longer works either. Does anyone have any guidance on how to get either or both of these working or where to start from a diagnostics perspective? I went into system information and the camera is no longer detected... so I don't know if it's failed or something else.