Final answer:
Contact lenses always need to be removed before flushing eyes to prevent harm or damage to the eyes.
Step-by-step explanation:
Contact lenses always need to be removed before flushing eyes. Contact lenses are a type of corrective eyewear that is placed directly on the cornea of the eye. When flushing the eyes with water or any other solution, it is important to remove contact lenses first to prevent any potential harm or damage to the eyes.