Medical & Clinical Research

Author(s): Farhang Mossavar-Rahmani and Bahman Zohuri

There is much more to light than just our ability to see. It is an essential component of human life and has a significant physiological, psychological, and social impact on us. Light has influenced our lives in many ways, from the beginning of time, when our ancestors worshipped the sun, to our current dependence on artificial lighting. It helps us navigate and understand the world, controls our sleepwake cycles, and affects our moods. The many benefits of light will be examined in this introduction, along with its critical role in our general evolution as a species and in our health and well-being. At the same time, light is a profound energy source, with applications ranging from everyday illumination to high-tech uses in medical, industrial, and defense sectors. One of the most potent ways lights are harnessed is through laser technology, which focuses light on an intense, coherent beam. This article explores how lasers, as a light-driven power, are revolutionizing areas such as healthcare (e.g., LASIK and surgical applications), industrial manufacturing, and military operations.