Eye strain

Common card · No. 378856

Eye strain, also medically termed asthenopia (from astheno- 'loss of strength' and -opia 'relating to the eyes'), is a common eye condition characterized by non-specific symptoms such as fatigue, pain in or around the eyes, blurred vision, headache, and double vision. These symptoms may occur after long-term use of computers, staring at phone screens, digital devices, reading, or other activities that involve extended visual tasks. Various causes contribute to eye strain, including uncorrected vision problems, digital device usage, environmental factors, and underlying health conditions. When concentrating on a visually intense task, the ciliary muscles and the extra-ocular muscles are strained, also contributing to the symptoms. These symptoms are broadly classified into external symptom factors (related to the ocular surface) and internal symptom factors (related to eye muscles). Eye strain is highly prevalent among individuals engaged in prolonged near-vision tasks such as reading...

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