The more common thing that we see is just contact lens overwear. The cornea gets devoid of oxygen. So, a contact lens does start to break down over time so it doesn't have a smooth surface.

This can lead to something called contact lens overwear syndrome, which occurs when your lenses obstruct your eyes' ability to absorb oxygen. Left untreated, you may experience bloodshot eyes ...

Changing your look but keeping clear vision can be achieved by using colored contacts or prescription glasses interchangeably. Alternating between uses, however, depend on good eye hygiene to avoid ...