The Dry Eye Zone

Rebecca's Blog

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Study: Relationship between dry eye and refractive error.

This was interesting. Somehow I don't quite know how to take it seriously, but I'd love to see more.

Indian J Ophthalmol. 2018 May;66(5):653-656. doi: 10.4103/ijo.IJO_1103_17.
Correlation between dry eye and refractive error in Saudi young adults using noninvasive Keratograph 4.
Fahmy RM1, Aldarwesh A2.

Abstract
PURPOSE:
The purpose is to study the correlation between dry eye and refractive errors in young adults using noninvasive Keratograph.

METHODS: :
In this cross sectional study, a total of 126 participants in the age range of 19-25 years and who were free of ocular surface disease, were recruited from King Saud University Campus. Refraction was defined by the spherical equivalent (SE) as the following: 49 emmetropic eyes (±0.50 SE), 48 myopic eyes (≤-0.75 SE and above), and 31 hyperopic eyes (>+0.75 SE). All participants underwent full ophthalmic examinations assessing their refractive status and dryness level including noninvasive breakup time (NIBUT) and tear meniscus height using Keratograph 4.

RESULTS:
The prevalence of dry eye was 24.6%, 36.5%, and 17.4% in emmetropes, myopes, and hypermetropes, respectively. NIBUT has a negative correlation with hyperopia and a positive correlation with myopia with a significant reduction in the average NIBUT in myopes and hypermetropes in comparison to emmetropes.

CONCLUSION:
The current results succeeded to demonstrate a correlation between refractive errors and dryness level.