The ancient marshy Nile would have hosted many eye disease-causing bacteria. Application of the makeup may have revved up cells' immunity and protected against infection.

湿软的古尼罗河想必滋生了不少导致眼部感染的细菌，而这些眼妆的应用则帮助古埃及人加速了免疫系统的工作，从而无眼病之虞。