THE USE OF SMARTPHONES AND THEIR INFLUENCE ON VISION
Tundzhay Yoztyurk, Kalina Trifonova, Valentin Stoyanov and Kiril Slaveykov
ABSTRACT: The study aims to assess the prevalence, risk factors and impact of smartphone use on vision in the age of digitalization, and to formulate behavioral recommendations for using mobile digital devices. A literature review was conducted on the topic using Google Scholar, Pubmed, CrossRef and free search. The results show that when we stare at a phone screen, because it is much smaller compared to a computer and the screen is at a much closer distance, it results in a greater visual strain and a greater strain on accommodation and convergence. Smartphone technology is based on blue light and there is a high probability of vision damage due to the shorter wavelength of light when used for a long period of time. Eye problems associated with smartphone use such as eye strain, double vision, redness, tearing, and blurred vision have been described in the literature. These disturbances were mostly observed in people using smartphones for more than 3-4 hours a day without a break. Cases of transient vision loss have also been reported in patients who looked at a cell phone in the dark for several minutes. From most studies, we can conclude that we need to set limits on screen time and mobile device use before bed.
Keywords: eye problems, blue light, visual disturbances, cell phones, recommendations