|Light is one of the most important aspects of the physical work environment. Light is used not only to see things and do things, but also as a factor to create a pleasant and pleasant work environment. Therefore, according to the nature of the light and the type of work and the accuracy required for work, the amount of light should be provided to the extent that people can perform their tasks easily. Therefore, the optimal lighting is the lighting in which a person does his work accurately and quickly and without extra effort. Good lighting is the basis of comfort, health and safety of employees and work progress, and it allows people to do their work related to vision accurately, quickly and without unnecessary effort. Based on the study of the American Institute of Occupational Health in order to investigate the lighting conditions in the hospital, the results showed that improving the lighting in hospitals reduces work pressures and prevents human error and provides more comfort and prevents unnecessary fatigue. And productivity increases. The role of lighting in protecting the vision of employees, reducing factors that cause fatigue and mental pressure, increasing work efficiency and improving quality is undeniable. Excessive lighting or lack of lighting in any environment causes various discomforts and even accidents.|
Excessive light exposure can cause headaches, fatigue, stress, eye irritation and anxiety. A lack of light can also cause eye pressure, headache, dizziness, fatigue, musculoskeletal disorders due to improper body posture and extra pressure on the body to adjust vision. Adverse lighting in the workplace has a negative effect on people’s health. Also, studies have shown that improving the lighting of the work environment can improve the efficiency of people by 3%. The hospital’s lighting system includes general lighting for all departments and parts and local lighting for operating beds, delivery, plastering, examination, injections, special care in patient rooms. For this reason, the lighting design of various hospital spaces and facilities shouldbe done according to the needs of optimal vision for doctors, nurses, technicians, patients and maintenance workers. The primary goals of any health care system is to create a suitable environment to restore health to patients. These systems include hospitals, special care centers for mental patients, surgery centers, emergency centers, clinics and clinics. For lighting design, the right conditions for present and future needs should be considered. Medical facilities and hospitals must have favorable conditions, comfortable visibility must be provided for doctors, nurses, technicians, patients and their companions who have a wide range of ages, and a hand of lighting sources is also a must. Each hospital complex includes a wide range of job activities and working in such a complex and dynamic environment and the need for lighting in each department is different and each department needs a certain amount of lighting in terms of quantity and quality, which can include the room Elderly patients, normal and special nursing services, patient examination room, nursing station, delivery room, operation room, etc. Buying operating room sockets in hospitals, usually all spaces are active around the clock and all days of the week. Therefore, the quantitative and qualitative standards of optimal lighting should always be maintained in them. Lighting has an effect on the biological rhythm, and changing the said rhythm has an effect on the individual performance of hospital shift workers who work at night. The results of the Limburgepidemiological study in the Netherlands showed that 53% of hospital nurses have visual impairments. Optimal lighting conditions can make hospital staff perform better. Optimum lighting gives the message to the employees that Her job is important. Understanding the importance and usefulness of the task in addition Ensuring the health of employees increases job satisfaction and, as a result, improves the performance and productivity of employees. Considering the importance of the treatment sector in the health of society and considering that hospitals include a wide range of jobs and people, artificial lighting in hospitals should be specially considered.