Microbiological pollution and ocular infection in CAD operators: an on-site investigation

A large number of workers are currently employed in tasks involving the use of computer based equipment. Much research has been carried out both on pr evalence and incidence of ocular and visual disorders as well as on occupat ional asthenopia. Less attention has been given to investigating the possib ility of a microbiological pollution of Video Display Unit (VDU) workstatio ns and to the consequent possible development of work-related ocular infect ions. The authors investigated the presence of bacteria and fungi on Comput er Assisted Design (CAD) workstations and in the conjunctival sac of the op erators.