International journal of retina and vitreous · 2025
Macular thickness and vascular density assessment using optical coherence tomography and optical coherence tomography angiography imaging in iron ore mine personnel.
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Faraji Navid, Tafti Seyyed Pouria, Khoshroo Niloofar, Khoshrou Alireza, Bakhtiari Elham, Eslami Saeid, Shoeibi Nasser, Ansari Astaneh Mohammad Reza, Hosseini Seyedeh Maryam, Abrishami Majid, Heidarzadeh Hamid Reza, Arjmand Parnian, Abrishami Mojtaba
Аннотация
BACKGROUND: To assess macular anatomical and vascular parameters in individuals working in iron ore mines using Optical Coherence Tomography (OCT) and Optical Coherence Tomography Angiography (OCTA) imaging to explore potential correlations between this occupational exposure and retinal changes.
METHODS: Individuals from the Sangan iron ore mine in Iran were included in a comparative cross-sectional observational study. An age-matched normal control group was selected from healthy participants employed at Mashhad University of Medical Sciences. Following thorough medical evaluations, participants underwent OCT and OCTA imaging. The macular thickness profile, vessel density (VD) of the superficial (SCP) and deep retinal capillary plexus (DCP), and the area of the foveal avascular zone (FAZ) were measured in our cases and compared with age-matched normal controls.
RESULTS: One hundred and one individuals, with an average age of 38.3 ± 5.59 years in the case group and 38.5 ± 5.59 years in the control group, were enrolled in the study. The difference in mean foveal thickness between cases (50.75 ± 9.13) and normal controls (50.38 ± 8.29) was not statistically significant (p = 0.758). Similarly, the mean VD in SCP and DCP for the case group (49.08 ± 2.20 and 49.32 ± 2.42, respectively) and the control group (49.45 ± 3.54 and 49.36 ± 3.97) did not show significant differences. Additionally, there were no significant changes (p-value > 0.05) in macular thickness and VD in other retinal regions when comparing the case and control groups.
CONCLUSION: The research did not establish a significant association between occupational exposure in an iron ore mine and retinal structural changes or alterations in macular VD.
METHODS: Individuals from the Sangan iron ore mine in Iran were included in a comparative cross-sectional observational study. An age-matched normal control group was selected from healthy participants employed at Mashhad University of Medical Sciences. Following thorough medical evaluations, participants underwent OCT and OCTA imaging. The macular thickness profile, vessel density (VD) of the superficial (SCP) and deep retinal capillary plexus (DCP), and the area of the foveal avascular zone (FAZ) were measured in our cases and compared with age-matched normal controls.
RESULTS: One hundred and one individuals, with an average age of 38.3 ± 5.59 years in the case group and 38.5 ± 5.59 years in the control group, were enrolled in the study. The difference in mean foveal thickness between cases (50.75 ± 9.13) and normal controls (50.38 ± 8.29) was not statistically significant (p = 0.758). Similarly, the mean VD in SCP and DCP for the case group (49.08 ± 2.20 and 49.32 ± 2.42, respectively) and the control group (49.45 ± 3.54 and 49.36 ± 3.97) did not show significant differences. Additionally, there were no significant changes (p-value > 0.05) in macular thickness and VD in other retinal regions when comparing the case and control groups.
CONCLUSION: The research did not establish a significant association between occupational exposure in an iron ore mine and retinal structural changes or alterations in macular VD.