From the Journals

Artificial Tears Improve Tear Stability

Preservative-free carboxymethyl cellulose drops modestly increased tear break-up time and produced small corneal epithelial changes in screen-exposed patients.

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  • 1

    Study evaluated preservative-free artificial tears for dry eye disease.

  • 2

    Conducted on 76 patients with high screen exposure (avg. 6.3 hours).

  • 3

    Treatment lasted one month, using 0.5% carboxymethyl cellulose four times daily.

  • 4

    Significant improvement in tear film stability observed (NIBUT increased 1.37 seconds).

  • 5

    Small structural changes in corneal epithelium noted.

  • 6

    Study limitations: single-arm design, small sample size.

  • 7

    Screen time negatively correlated with tear film stability.

  • 8

    Authors suggest further research for validation.

Original Source(s)

Artificial Tears Improve Tear Stability

Preservative-free carboxymethyl cellulose drops modestly increased tear break-up time and produced small corneal epithelial changes in screen-exposed patients.

  • by Conexiant News Staff

  • March 4, 2026

  • 3 min

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