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3431777 
Journal Article 
Associations of blood heavy metal levels with intraocular pressure 
Park, S; Choi, NK 
2016 
Yes 
Annals of Epidemiology
ISSN: 1047-2797
EISSN: 1873-2585 
26 
8 
546-550 
English 
27497680 
WOS:000382102200005 
Purpose: Whether or which blood heavy metal levels (BHMLs) influence elevating intraocular pressure (IOP) are unknown. We examined the relationship among blood lead, mercury, and cadmium levels, blood pressure (BP), and MP and assessed whether BP mediates these BHMLs-lOP associations. Methods: We analyzed data on 8371 adult (>= 20 years) from the Korea National Health and Nutrition Examination Survey from 2008 to 2012. Mediation analysis was used to examine the contribution of BP to the BHMLs-IOP relationship. Results: IOP and three BHMLs were significantly associated with systolic and diastolic BP. But IOP was associated with only blood lead and mercury levels. BP significantly mediated lead-IOP and mercury-IOP associations: BP accounted for 20.5% and 14.2% of the association with IOP. Blood lead and mercury levels were significantly associated with IOP. Conclusions: BP significantly mediates the effects of those blood lead and mercury levels on IOP outcome. Prospective studies are needed to further examine the causal pathway from BHMLs to IOP elevation. (C) 2016 Elsevier Inc. All rights reserved. 
Heavy metal; Lead; Mercury; Cadmium; Blood pressure; Intraocular pressure