Academic Journal
Effects of artificial tears on ocular surface symptoms and visual task performance in digital device users.
| Τίτλος: | Effects of artificial tears on ocular surface symptoms and visual task performance in digital device users. |
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| Συγγραφείς: | Ortiz-Toquero S; Optometry Research Group, IOBA Eye Institute, University of Valladolid, Valladolid, 47011, Spain. sara.ortiz@uva.es.; Departamento de Física Teórica, Atómica y Óptica, Universidad de Valladolid, Paseo de Belén, 7 - Campus Miguel Delibes, Valladolid, 47011, Spain. sara.ortiz@uva.es., Sanchez I; Optometry Research Group, IOBA Eye Institute, University of Valladolid, Valladolid, 47011, Spain.; Departamento de Física Teórica, Atómica y Óptica, Universidad de Valladolid, Paseo de Belén, 7 - Campus Miguel Delibes, Valladolid, 47011, Spain., Martin R; Optometry Research Group, IOBA Eye Institute, University of Valladolid, Valladolid, 47011, Spain.; Departamento de Física Teórica, Atómica y Óptica, Universidad de Valladolid, Paseo de Belén, 7 - Campus Miguel Delibes, Valladolid, 47011, Spain. |
| Πηγή: | Scientific reports [Sci Rep] 2025 Dec 26; Vol. 16 (1), pp. 653. Date of Electronic Publication: 2025 Dec 26. |
| Τύπος έκδοσης: | Journal Article |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Nature Publishing Group Country of Publication: England NLM ID: 101563288 Publication Model: Electronic Cited Medium: Internet ISSN: 2045-2322 (Electronic) Linking ISSN: 20452322 NLM ISO Abbreviation: Sci Rep Subsets: MEDLINE |
| Imprint Name(s): | Original Publication: London : Nature Publishing Group, copyright 2011- |
| Ιατρικοί όροι (MeSH): | Dry Eye Syndromes*/drug therapy , Dry Eye Syndromes*/etiology , Lubricant Eye Drops*/pharmacology , Lubricant Eye Drops*/administration & dosage , Lubricant Eye Drops*/therapeutic use, Tears/drug effects ; Blinking/drug effects ; Humans ; Male ; Female ; Adult ; Computer Terminals ; Prospective Studies ; Middle Aged ; Task Performance and Analysis ; Young Adult ; Surveys and Questionnaires |
| Περίληψη: | This prospective, single-arm study investigates the effects of preservative-free artificial tears on ocular symptoms, visual task performance, and tear film stability in visual display terminal (VDT) users. Thirty VDT users with digital eye strain and dryness symptoms were prescribed preservative-free artificial tears four times daily for one month. Ocular Surface Disease Index (OSDI) and Computer-Vision Symptom Scale (CVSS17) questionnaires were collected at four visits (screening, initial, one week and one month). Blink rate and eye fixations during six simple computer tasks and out-loud reading speed were determined before and after computer use. Noninvasive tear film break-up time (NIBUT) and tear meniscus height (TMH) were also recorded. VDT users' symptoms [CVSS17 (35.70 ± 3.72 to 27.27 ± 4.43; P < 0.01); OSDI (19.99 ± 3.20 to 10.52 ± 6.04; P < 0.01)] improved after artificial tear use at final visit. Out-loud reading speed did not significantly change, although a slight improvement in the normalized value was observed after computer use between the initial (0.99 ± 0.13) and final (1.02 ± 0.15; P < 0.01) visits. No significant differences between visits were found in the blink rate, eye fixations, NIBUT or TMH. Preservative-free artificial tears effectively reduce subjective symptoms in VDT users, although this relief does not translate into measurable improvements in visual task performance or tear film metrics. (© 2026. The Author(s).) |
| Competing Interests: | Declarations. Competing interests: The authors declare no competing interests. Supported by an investigator-initiated study grant from Alcon (IIT#73376825). |
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| Contributed Indexing: | Keywords: Artificial tears; Computer vision syndrome; Digital eye strain; Reading speed |
| Substance Nomenclature: | 0 (Lubricant Eye Drops) |
| Entry Date(s): | Date Created: 20251226 Date Completed: 20260107 Latest Revision: 20260110 |
| Update Code: | 20260130 |
| PubMed Central ID: | PMC12780262 |
| DOI: | 10.1038/s41598-025-22510-4 |
| PMID: | 41453934 |
| Βάση Δεδομένων: | MEDLINE |
| ISSN: | 2045-2322 |
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| DOI: | 10.1038/s41598-025-22510-4 |