The relation between blinking and conjunctival folds and dry eye symptoms

Pult, Heiko ORCID: https://orcid.org/0000-0003-4371-8007, Riede-Pult, Britta H. and Murphy, Paul J. 2013. The relation between blinking and conjunctival folds and dry eye symptoms. Optometry and Vision Science 90 (10) , pp. 1034-1039. 10.1097/OPX.0000000000000029

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Abstract

Purpose To investigate the relationship between blink action, dry eye symptoms, and lid-parallel conjunctival folds (LIPCOF). Methods In 30 subjects (14 were women; mean [standard deviation {SD}] age, 42.4 [±12.3] years), spontaneous blinks were recorded from a temporal-inferior view (high-speed video), and the blink extent (incomplete [IC], almost complete [AC], and complete [CC]) was evaluated. Dry eye symptoms were evaluated using the Ocular Surface Disease Index (OSDI), and nasal and temporal LIPCOF grades were noted. Correlations between groups were calculated with Pearson correlation (or Spearman rank in nonparametric data), and differences between groups were calculated with an unpaired t-test (or U-test Mann-Whitney in nonparametric data). Results Blink rate was significantly higher in females (22.0% [±16.8]) than in males (8.6% [±7.2]; unpaired t-test: p = 0.007). The percentage of AC of all blinks (AC%) was significantly correlated to LIPCOF sum (nasal + temporal) and OSDI scores (r > 0.570, p < 0.001). The percentage of IC was significantly correlated to LIPCOF sum (r = −0.541, p < 0.001) but not to OSDI. Conclusions The frequency and type of blinking may have an effect on dry eye symptoms and LIPCOF severity since almost all complete blinks were significantly related to both factors.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Optometry and Vision Sciences
Publisher:	Lippincott, Williams & Wilkins
ISSN:	1040-5488
Date of Acceptance:	17 June 2013
Last Modified:	28 Nov 2023 15:45
URI:	https://orca.cardiff.ac.uk/id/eprint/164176

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