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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A study conducted at Himalaya Eye Hospital in Nepal evaluated the effects of preservative-free artificial tears containing carboxymethyl cellulose on patients aged 20 to 40 years with dry eye disease from prolonged screen exposure. The research involved 76 patients who reported an average of 6.3 hours of daily screen time. After one month of treatment, results showed a significant improvement in tear film stability and slight structural changes in the corneal epithelium, though the clinical relevance of these changes remains uncertain. The findings highlight the potential benefits of lubricating drops amid increasing screen use worldwide.

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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