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Detection of microplastics in pterygium tissue: Implications for environmental hazards
Summary
Researchers detected microplastics in surgically removed pterygium tissue from a patient's eye, identifying ten particles including polyethylene, polystyrene, and polypropylene ranging from 5 to 99 micrometers. The findings suggest that environmental microplastics may commonly reach the ocular surface, raising concerns about eye-related exposure pathways.
PurposeThis study aimed to report a case of microplastics (MPs) detection in a pterygium patient's tissue.Case reportA pterygium specimen was obtained from the right eye of a 43-year-old woman by surgical removal of a recurred pterygium. The number, morphology, and material type of the MPs in pterygium were identified using Raman microscopy and scanning electron microscopy. Ten MPs were detected in the pterygium, which corresponded to polyethylene (PE) (n = 7), polystyrene (PS) (n = 2), and polypropylene (PP) (n = 1). The size of MPs ranged from 5-9 µm (n = 5, PE or PS), 10-19 µm (n = 4, PE), and 50-99 µm (n = 1, PP). All MPs were transparent and irregular fragments.ConclusionsThis study demonstrated the detection of MPs in the pterygium tissue. Our findings suggest that environmental hazards, such as MP, may be commonly exposed to the ocular surface.