What should be the flow direction when irrigating the eye?

When irrigating the eye, the flow direction should be from the inner canthus to the outer canthus. This direction helps to promote the removal of debris and any potential infectious agents from the inner part of the eye, leading them away from the eye's more sensitive inner areas towards the outer regions. This practice not only aids in efficient flushing but also minimizes the risk of introducing contaminants deeper into the eye, which could lead to complications.

Choosing this approach aligns with anatomical and physiological principles, ensuring that any unwanted materials or irritants are moved toward the outer aspects where they can be more easily wiped away or drained without risk of re-entering the tear ducts or the more delicate structures of the eye. Maintaining this directionality during irrigation maintains proper hygiene and promotes effective clearing of the eye surface.