Correlation of Chronic Smoking with Meibomian Gland Dysfunction – A Study at Wardha, Maharashtra, India

Abstract

BACKGROUND Meibomian gland dysfunction (MGD) is one of the causes of evaporative dry eye disease. It is the terminal duct obstruction of the Meibomian gland and is associated with glandular secretion changes. These changes lead to decreased amount of lipids secretion which accounts for instability of tear film leading to evaporative dry eye disease. Chronic smoking also causes irritative, burning eyes along with unstable tear film. We wanted to study the corelation of chronic smoking with Meibomian gland dysfunction. METHODS This is a hospital based observational cross-sectional study that enrolled a total of 100 subjects having Meibomian gland disease (MGD), out of whom 61 were smokers and 39 were non-smokers. All enrolled subjects underwent tear film breakup time (TBUT), Schirmer I test (SIT) and slit-lamp microscope examination of lid margin abnormalities, Meibomian gland expression as well as meibum. RESULTS Our study found that the patients with Meibomian gland dysfunction with the history of chronic smoking had a remarkably decreased value of tear film break up time (TBUT), Schirmer’s 1 Test which explains the dry eye symptoms as compared to MGD patients without smoking. No significant differences were seen in lid margin irregularity and meibum secretion. Meibomitis is found in 29 smokers with MGD and 5 non-smokers with MGD which is not significant. CONCLUSIONS Chronic smoking is associated with MGD. KEY WORDS Cigarette Smoking, Meibomian Gland Dysfunction, Tear Film Tests

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