Effect of punctal occlusion on tear menisci in symptomatic contact lens wearers

Ming Li, Jianhua Wang, Meixiao Shen, Lele Cui, Aizhu Tao, Zhao Chen, Lili Ge, Fan Lu

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Purpose: To investigate by ultrahigh resolution optical coherence tomography the effect of punctal occlusion on tear menisci in symptomatic and asymptomatic contact lens wearers. Methods: Symptomatic subjects with self-reported dry eyes (n = 20) and asymptomatic subjects (n = 20) were recruited. For each subject, 1 eye was randomly chosen for both upper and lower punctal occlusion with collagen plugs. Ultrahigh resolution optical coherence tomography imaged both upper and lower tear menisci before punctal occlusion, and 1, 4, 7, and 10 days afterward. Comfort scoring, noninvasive tear break-up time, tear break-up time, and Schirmer test with anesthesia were also performed. Results: Tear meniscus variables in the symptomatic group were lower than those in the asymptomatic group (P < 0.05) at all time points except for day 4. In the symptomatic group, the tear menisci were increased up to day 4 after punctal occlusion (P < 0.05). The increase was present only on day 1 in the asymptomatic group. Improvement of comfort scores and noninvasive tear break-up time occurred in both groups after occlusion (P < 0.05). The comfort scores were linearly correlated with the tear volumes after punctal occlusion, with higher correlation coefficients in the symptomatic group. Conclusions: Punctal occlusion transiently increased tear menisci in symptomatic and asymptomatic lens wearers, with a longer duration in the symptomatic group. For both symptomatic and asymptomatic lens wearers, the increased meniscus volume was associated with improved ocular comfort.

Original languageEnglish (US)
Pages (from-to)1014-1022
Number of pages9
JournalCornea
Volume31
Issue number9
DOIs
StatePublished - Sep 1 2012

Keywords

  • comfort
  • contact lens
  • punctal occlusion
  • tear menisci
  • ultrahigh resolution optical coherence tomography

ASJC Scopus subject areas

  • Ophthalmology

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    Li, M., Wang, J., Shen, M., Cui, L., Tao, A., Chen, Z., Ge, L., & Lu, F. (2012). Effect of punctal occlusion on tear menisci in symptomatic contact lens wearers. Cornea, 31(9), 1014-1022. https://doi.org/10.1097/ICO.0b013e31823f8d9e