Lens Clarity and Visual Fatigue in Children: The Role of Eyewear Hygiene and Healthcare Professionals

Visual fatigue, also known as digital eye strain (DES), has become a growing concern among children due to increased exposure to digital screens, especially after the global shift to remote learning during the COVID-19 pandemic. Although prolonged screen time and poor ergonomics are well-recognized contributors, the influence of eyewear hygiene-specifically lens cleanliness-on visual discomfort is less explored. This mini-review synthesizes recent research focusing on the relationship between lens clarity and symptoms of visual fatigue in children using corrective eyewear. Findings indicate that dirty lenses exacerbate visual strain by impairing optical clarity and increasing glare, thus intensifying accommodative stress. This mini-review also highlights the critical role of healthcare professionals in educating and guiding children and caregivers on proper lens maintenance, contributing to symptom reduction and better eye health outcomes.