We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Impact of Microplastics on the Ocular Surface
AI summary Read the abstract
This review examines emerging evidence on how microplastics may affect the surface of the human eye. Researchers found that microplastics can potentially trigger inflammatory responses, microbial imbalance, and oxidative stress in ocular tissues, though research is still limited. The study highlights the need for more investigation into this overlooked exposure route, as the eyes are constantly exposed to airborne particles including microplastics.
Plastics are synthetic materials made from organic polymers that are ubiquitous in daily living and are especially important in the healthcare setting. However, recent advances have revealed the pervasive nature of microplastics, which are formed by degradation of existing plastic products. Although the impact on human health has yet to be fully characterised, there is increasing evidence that microplastics can trigger inflammatory damage, microbial dysbiosis, and oxidative stress in humans. Although there are limited studies investigating their effect on the ocular surface, studies of microplastics on other organs provide some insights. The prevalence of plastic waste has also triggered public outcry, culminating in the development of legislation aimed at reducing microplastics in commercial products. We present a review outlining the possible sources of microplastics leading to ocular exposure, and analyse the possible mechanisms of ocular surface damage. Finally, we examine the utility and consequences of current legislation surrounding microplastic regulation.
More Papers Like This
Microplastics and nanoplastics in the ocular environment: Pathways, toxic effects, and future challenges
AI summary Read the abstract
This review examines how micro- and nanoplastics may enter and affect the human eye, a topic that has received relatively little research attention. Researchers discuss potential exposure pathways, accumulation in ocular tissues, and mechanisms of harm including oxidative stress, inflammation, and cell death. The study highlights the need for more research on how plastic pollution could impact vision and overall eye health.
Micro/nanoplastics and eye health: a review
AI summary Read the abstract
This review examined the potential effects of micro- and nanoplastics on eye health, finding that ocular exposure can occur through direct contact and oral ingestion, with particles potentially penetrating biological barriers to reach eye tissues. Evidence indicates that these particles may induce adverse effects on the eye surface, elevate intraocular pressure, and cause retinal abnormalities, primarily through oxidative stress and inflammation mechanisms.
An often-overlooked health issue: The potential adverse effects of microplastics on the human ocular health
AI summary Read the abstract
Tiny plastic particles from air, cosmetics, and even contact lenses can land on the surface of your eyes, and this review of existing research suggests they may contribute to problems like dry eye, irritation, and inflammation of the cornea. While scientists are still figuring out exactly how harmful these particles are, the risk seems to depend on factors like plastic type and size, and can potentially be lowered by cutting down on plastic use and being mindful with contact lens care. It's a good reminder that microplastic exposure isn't just about what we eat or breathe, it may also affect the health of our eyes.
Polystyrene microplastic particles: In vivo and in vitro ocular surface toxicity assessment
AI summary Read the abstract
Researchers assessed the ocular surface toxicity of polystyrene microplastics in both in vivo and in vitro models. The study found that 50 nm and 2 micrometer microplastic particles caused damage to ocular surface tissues after 48 hours of exposure, affecting cell viability and inducing inflammatory responses. The findings suggest that microplastics present in cosmetics, tap water, and air may pose a risk to eye health.
Identification of microplastics in human tear fluid and meibum: Implications for dry eye disease pathogenesis
AI summary Read the abstract
For the first time, researchers confirmed the presence of microplastics in human tear fluid and the oily secretions of the eyelid glands (meibum), with polyethylene being the most common type found. Higher polyethylene levels correlated with worse dry eye disease symptoms. In lab and mouse experiments, polyethylene exposure damaged eye surface cells and triggered inflammation, suggesting airborne microplastics may contribute to dry eye disease.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.