What substance should be used to rinse a client's eye if a product accidentally gets into it?

When a product accidentally enters a client's eye, the immediate goal is to dilute and flush out the substance to minimize irritation or damage. Boric acid is commonly used as a mild antiseptic and eyewash. Its solution can effectively help in rinsing the eye due to its ability to soothe irritation and maintain a balance in the pH level, making it a suitable option in emergency eye care scenarios.

Sodium chloride, while used in medical settings as a saline solution, can be too concentrated for direct application to the eye. Hydrogen peroxide is not suitable for eye contact as it can cause significant irritation and damage due to its oxidative properties. Distilled water could theoretically rinse the eye, but it is not specifically designed for eye care; hence, it may not be as effective or soothing as the boric acid solution. This makes boric acid the most appropriate option in the event of accidental exposure to harmful substances in the eye.