We compared the frequency of lens o

We compared the frequency of lens opacities among physicians with and without occupational expo- sure to ionizing radiation, and estimated dose-response between cumulative dose and opacities. We conducted ophthalmologic examinations of 21 physicians with occupational exposure to radiation and 16 unexposed physicians. Information on cumulative radiation doses (mean 111 mSv) was based on dosimeter readings recorded in a national database on occupational exposures. Lens changes were evaluated using the Lens Opacities Classification System II, with an emphasis on posterior subcapsu- lar (PSC) and cortical changes. Among the exposed physicians, the prevalences of cortical and PSC changes were both 11% (3/21), and the corresponding frequencies in the unexposed group were 44% (n = 7) and 6% (n = 1). For dose–response analysis, the data were pooled with 29 exposed physicians from our previous study. No association of either type of lens changes with cumulative recorded dose was observed. Our findings do not indicate an increased frequency of lens opacities in physicians with occupational exposure to ionizing radiation. However, the subjects in this study have received relatively low doses and therefore the results do not exclude small increases in lens opacities or contradict the studies reporting increases among interventional cardiologists with materially higher cumulative doses.

ผลลัพธ์ (อังกฤษ) 3:

We compared the frequency of lens opacities among physicians with and without occupational Expo - sure to, ionizing radiation. And estimated dose-response between cumulative dose and opacities. We conducted ophthalmologic examinations of 21 Physicians. With occupational exposure to radiation and 16 unexposed physicians.Information on cumulative radiation doses (mean 111 mSv) was based on dosimeter readings recorded in a national database. On occupational exposures. Lens changes were evaluated using the Lens Opacities Classification System II with an, emphasis. On posterior subcapsu - lar (PSC) and cortical changes. Among the exposed physicians the prevalences, of cortical and PSC. Changes were both 11% (3 / 21),And the corresponding frequencies in the unexposed group were 44% (n = 7) and 6% (n = 1). For dose - response analysis the,, Data were pooled with 29 exposed physicians from our previous study. No Association of either type of lens changes with. Cumulative recorded dose was observed.Our findings do not indicate an increased frequency of lens opacities in physicians with occupational exposure to ionizing. However radiation,.The subjects in this study have received relatively low doses and therefore the results do not exclude small increases. In lens opacities or contradict the studies reporting increases among interventional cardiologists with materially higher. Cumulative doses.
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