What are common toxicants that affect the tear film?
Certain chemical toxicants, such as solvents, fumes, and particulate matter, can disrupt the tear film. For instance, exposure to volatile organic compounds (VOCs) can lead to tear film instability and increased evaporation, causing dry eye symptoms. Pesticides and industrial chemicals are also known to have adverse effects, leading to conditions such as chemical conjunctivitis. Understanding these toxicants is crucial for developing preventive and therapeutic strategies.