Keep your eyes open by holding your eyelids apart with your fingers. Roll Your Eyes Gently roll your eyes from left to right and up and down to be sure that the fluid is flushing all of the areas of your eye. Flush for a Full Fifteen Minutes Continue Flushing your eyes for a full 15 minutes. The temperature in an ANSI compliant eyewash will be between 60 and 100 degrees fahrenheit so that you will comfortably be able to continue flushing for the entire period of time.