Sydney, March 4: A recent study suggests that children suffering from myopia, or near-sightedness, could experience disrupted sleep patterns.
This condition is on a troubling rise, with predictions indicating that by 2050, half of the global population may be affected.
The shift towards more indoor time and screen usage among children has been identified as a contributing factor.
Researchers from Flinders University have highlighted the negative impact of myopia on sleep quality, underscoring the importance of early diagnosis and improved management strategies.
Led by Associate Professor Ranjay Chakraborty of the Myopia and Visual Development Lab, the study reveals that myopic children exhibit lower levels of nocturnal melatonin and experience delays in their circadian timing of melatonin release compared to their non-myopic peers.
The investigation involved comparing melatonin levels, sleep patterns, and cognitive functions between 26 myopic and 14 non-myopic children, aged 8 to 15 years.
The findings suggest that myopia not only affects vision but also has a significant impact on a child’s sleep quality and overall health.
Sleep is crucial for children’s eye development, with daylight exposure playing a key role in regulating melatonin and dopamine levels, essential for maintaining healthy circadian rhythms.
Emeritus Professor Leon Lack, a sleep expert from Flinders University, suggests increasing children’s exposure to morning light as a potential strategy for mitigating the sleep disturbances associated with myopia.
This approach could pave the way for new treatment and management options.
While prescription glasses and contact lenses are common remedies for myopia, the condition remains a leading cause of vision impairment and blindness worldwide, posing a challenge to global health initiatives aimed at eliminating avoidable blindness.
The study’s authors call for further research to explore the long-term relationship between melatonin levels and myopia, hoping to uncover new ways to prevent or reduce the condition’s development. Despite current research efforts, much remains unknown about the underlying causes of myopia’s increasing prevalence, making continued investigation into this area a priority.
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