Estarki Fatemeh, Asharlous Amir, Mirzajani Ali, Abolghasemi Jamileh
Department of Optometry, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.
Department of Biostatistics, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
J Occup Health. 2021 Jan;63(1):e12237. doi: 10.1002/1348-9585.12237.
The present study was conducted to evaluate the status of tear film objectively and subjectively in machine carpet weavers.
In this cross-sectional study, machine-made carpet weavers were compared with the controls who were selected from people working in other parts of the factory except for the production. A complete evaluation of ocular health was done for all participants. The blink rate, tear deformation Time (TDT), and ocular staining were evaluated as an objective assessment and the ocular surface disease index (OSDI) was used for a subjective assessment of the tear film status. The results were compared between the two groups using the SPSS software.
The results of 46 weavers (mean age: 38.43 ± 6.10 years) and 46 controls (mean age: 33.20 ± 8.40 years) were analyzed. The mean of blink rate and OSDI score were significantly higher in weavers (Blink rate: 20.67 ± 4.18 blink/min, OSDI: 22.59 ± 9.51) in comparison with controls (Blink rate: 14.00 ± 3.30 blink/min, OSDI: 6.22 ± 4.78, P < .001). The mean TDT value of the weavers was significantly lower compared with the controls (10.27 ± 3.01 and 16.58 ± 4.18 s respectively, P < .001). Ocular surface staining was seen among 60.9% of weavers while there was 6.5% in the controls (P < .001). Based on the TDT test and OSDI results together, the percentage of dry eye in the weavers was 43.5% and that in the non-weavers was 2.2%, which showed that the relationship between weaving and dry eyes was statistically significant (P < .001).
The results indicate that increased symptoms and decreased tear stability in weavers compared with non-weavers lead to more tear film abnormalities in these individuals.
本研究旨在客观和主观地评估机织地毯工人泪膜的状况。
在这项横断面研究中，将机织地毯工人与从工厂除生产部门外其他部门工作的人员中选取的对照组进行比较。对所有参与者进行了眼部健康的全面评估。眨眼频率、泪液变形时间（TDT）和眼部染色作为客观评估指标，眼部表面疾病指数（OSDI）用于主观评估泪膜状况。使用SPSS软件对两组结果进行比较。
分析了46名织工（平均年龄：38.43±6.10岁）和46名对照组人员（平均年龄：33.20±8.40岁）的结果。与对照组相比，织工的平均眨眼频率和OSDI评分显著更高（眨眼频率：20.67±4.18次/分钟，OSDI：22.59±9.51）（眨眼频率：14.00±3.30次/分钟，OSDI：6.22±4.78，P<.001）。织工的平均TDT值显著低于对照组（分别为10.27±3.01秒和16.58±4.18秒，P<.001）。60.9%的织工出现眼部表面染色，而对照组为6.5%（P<.001）。根据TDT测试和OSDI结果综合来看，织工中干眼症的百分比为43.5%，非织工中为2.2%，这表明编织与干眼症之间的关系具有统计学意义（P<.001）。
结果表明，与非织工相比，织工的症状增加和泪液稳定性降低导致这些个体出现更多的泪膜异常。
