ABSTRACT
AIM: To investigate the refractive status and myopia wearing rate of primary and secondary school students aged 6-18 in Yecheng county, Xinjiang.METHOD: Cross-sectional study. From October 2021 to June 2022, a stratified random sampling method was used to select 81 863 students from 51 primary schools and 30 secondary schools in Yecheng county, Kashgar Prefecture, Xinjiang. Basic data of the students were collected, and non ciliary muscle paralysis optometry was performed to detect naked eye farsightedness and corrected vision with glasses. The refractive status, glasses wearing rate, and full correction rate of students of different ages, genders, and ethnic groups were observed.RESULT: The detection rate of myopia among enrolled students was 13.39%(10958/81863), the wearing rate of glasses was 23.96%(2626/10958), and the full correction rate was 50.57%(1328/2626). The detection rate of myopia shows a certain upward trend with age, and the detection rate of myopia in girls was higher than that in boys(15.75% vs. 10.96%). The detection rates of myopia in Han, Uyghur, and other ethnic students were 68.12%, 12.63%, and 22.42%, respectively.CONCLUSION:The detection rate of myopia and glasses wearing rate were relatively low for students aged 6～18 in Yecheng county, Xinjiang, while the detection rate and glasses wearing rate of myopia among Han students were significantly higher than those of Uyghur and students of other ethnics.
ABSTRACT
@#AIM: To discuss the effect of conbercept in the treatment of polypoid chorioretinopathy(PCV)and its influence on hemorheology.<p>METHODS: From January 2017 to April 2018, 62 patients with PCV were enrolled in our hospital. According to the difference of treatment, the patients were divided into two groups, 31 cases in each group. The control group was treated with rapunzumab and the observation group with conbercept. Intraocular pressure, BCVA, CMT, SFCT, hemorheology and complications were compared between the two groups. <p>RESULTS: There was no difference in intraocular pressure, BCVA, CMT and SFCT between the two groups before treatment(<i>P</i>>0.05). With the increase of time, BCVA increased, CMT and SFCT decreased in both groups(<i>P</i><0.05). BCVA, CMT and SFCT were different between the two groups(<i>P</i><0.05). There was no difference in intraocular pressure between the two groups before and after treatment(<i>P</i>>0.05). The whole blood high shear viscosity, whole blood low shear viscosity, plasma viscosity and RBC aggregation index in the observation group were lower than those before treatment and lower than those in the control group(<i>P</i><0.05), and the RBC deformation index was higher than that before treatment and higher than that in the control group(<i>P</i><0.05). There was no difference in the incidence of complications between the two groups(3% <i>vs</i> 6%, <i>P</i>>0.05).<p>CONCLUSION: The application of conbercept in PCV can improve the visual acuity, and have a good impact in the hemorheology, reduce the macular edema and other clinical symptoms, and it has high safety and no effect on intraocular pressure.