Understanding Nocturnal Lagophthalmos Mask: A Key Factor in Dry Eye Disease

Dry eye disease (DED) affects millions of people worldwide, causing discomfort, blurred vision, and even impact on daily activities. While there are various factors that contribute to DED, one lesser-known factor is nocturnal lagophthalmos mask (NL), a condition characterized by the inability to close the eyelids during sleep.

In this article, we will delve into the significance of NL in relation to DED symptoms and sleep quality, as well as explore its prevalence among Japanese individuals.

Symptoms of Nocturnal Lagophthalmos Mask

Individuals with NL often report a sensation of having a foreign body in their eye or feeling dryness in their eye constantly. In fact, a survey conducted by our research team found that 44% of participants reported experiencing these symptoms frequently, while 26% reported them occasionally.

Prevalence and Correlation with DED

Our study discovered that NL is more prevalent among individuals with DED, with a significant correlation between the two conditions. In fact, logistic regression analysis revealed that younger age, symptomatic DED, and eye symptoms upon waking were all associated with NL.

Furthermore, our results showed that individuals with DED are more likely to work night shifts (p < 0.001) and have shorter sleep duration, longer sleep latency, and poorer sleep efficacy compared to those without DED (p < 0.001).

Demographics of the Study Population

Our study consisted of 890 subjects, with a mean age of 44 ± 13.8 years and a majority of females (p < 0.001). The participants were divided into two groups based on the presence of DED, and responses were compared between the groups.

Nocturnal lagophthalmos mask is a significant factor in dry eye disease, affecting both symptoms and sleep quality. As our study demonstrates, individuals with NL are more likely to experience worsened DED symptoms and poor sleep quality.

By recognizing the importance of NL, healthcare professionals can provide targeted interventions and recommend preventative measures for patients with DED. Additionally, further research is needed to explore the relationship between NL and other factors that contribute to DED.

For individuals experiencing dry eye disease, it is essential to consult with an eye care professional to rule out NL and develop a personalized treatment plan. By addressing this often-overlooked condition, we can improve overall eye health and quality of life for those affected by DED.