The measurement of pain caused by soap in the eyes can vary greatly among individuals and can depend on factors such as the concentration of the soap, the individual’s sensitivity, and the duration of exposure.
In medical settings, pain is often quantified using the "Douleur (DOL) scale," a numerical scale where patients rate their pain from 0 (no pain) to 10 (worst pain imaginable). Experiences of soap in the eyes may vary; some individuals may rate the pain as a 3 or 4 (mild to moderate discomfort), while others may experience more significant pain, potentially rating it higher.
In any case of chemical exposure to the eyes, immediate rinsing with copious amounts of water is crucial, and seeking medical attention is advised if discomfort persists or if the soap is a specialized product (like industrial soap). Always consult with a healthcare professional for personal medical advice.