Smartphone screen use causes permanent eye damage.

Is it true that smartphone screen use causes permanent eye damage?

Partly. One small university study asserts that smartphone screen and blue-light exposure raises the risk of permanent eye damage, while a skeptics discussion and a Hong Kong cohort study describe only temporary digital eye strain, and an adolescent study reports eyestrain symptoms rather than lasting damage. The evidence covers only partial, weaker versions of the claim and does not settle whether smartphone screen use causes permanent eye damage.

Verdict: CONTESTED PARTIAL · 2 sources for, 3 against · Last checked 3 Oct 2026

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Ismael, D. S. (2022). Smartphone overuse and vision problems among university students. zancojournal.su.edu.krd. https://zancojournal.su.edu.krd/index.php/JPAS/article/view/189

Does looking at a monitor screen in a room with very low light source damage your eyes?. (2023). skeptics.stackexchange.com. https://skeptics.stackexchange.com/questions/55462/does-looking-at-a-monitor-screen-in-a-room-with-very-low-light-source-damage-you

Smartphone overuse and vision problems among university students. (2022). doaj.org. https://doaj.org/article/50cc732bcd734e41a0a47176465cc3b1

Association between time spent on smartphones and digital eye strain: A 1-year prospective observational study among Hong Kong children and adolescents - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.1007/s11356-023-26258-0

Headache, eyestrain, and musculoskeletal symptoms in relation to smartphone and tablet use in healthy adolescents. (n.d.). cir.nii.ac.jp. https://doi.org/10.5384/sjovs.vol13i2p8-14