Lertwisuttipaiboon S, et al. – This trial contemplated the effectiveness of a participatory eye care (PEC) program by comparing eye care knowledge, attitude, and practice (KAP), along with eye strain symptoms in staff computer users, at Sukhothai Thammathirat Open University, Thailand. Evidence was yielded in support of a practical program developed through a participatory approach, which both researchers and computer users could apply. This approach would aid in reducing the eye strain.