Can using a smartphone cause dry eye syndrome?

The most common condition caused by prolonged mobile phone use while lying in bed is dry eye syndrome. The eyes need to secrete an adequate amount of tears that should not evaporate too quickly. When people stare at their phones for extended periods, their blink rate decreases, causing excessive evaporation of tear fluid and potentially leading to corneal epithelial shedding. Viewing small screens such as mobile phones in the dark for long durations can trigger glaucoma. It may also cause blood vessel spasms or prevent the eyes from relaxing properly, resulting in reduced accommodation ability.