It's wise to make a small investment in a lens protector that you keep permanently on the lens of your camera to avoid scratches and chips that would require a costly replacement of the lens itself.

An easy way to do this is to buy a UV or ultraviolet filter that costs less than $20. This filter is clear and screws into the front of your lens to protect it from scratches.

It won't affect the video as it's only filtering ultraviolet light that can't be seen by the human eye.