(Chin J Ophthalmol, 2020, 56 621-625).Objective to evaluate the causes that restrict the development of cataract surgery service capacity in public areas hospitals in Shanghai in the last few years. Techniques The condition of surgeries done in public areas hospitals are reviewed on the basis of the information associated with cataract surgery collected from the database of Shanghai Eye Disease Treatment. Meanwhile, the surgeries done by ophthalmologists working in the public hospitals are examined based on the National ophthalmology service capability survey. Outcomes The cataract surgery volume performed in public hospitals of Shanghai enhanced from 45 480 in 2013 to 51 941 in 2015. In 2014, the entire year on 12 months development price of cataract surgery volume in tertiary hospitals had been 8.54%, whilst in 2015, it was -0.21% on a yearly basis. A lot more than 70% cataract surgeries had been carried out in tertiary community hospitals. For the people performed in tertiary community hospitals, 80% had been performed in metropolitan location. The particular surgeons in tertiary account fully for 70% associated with real surgeons in all public hospitals. Among all cataract surgeries performed in additional hospitals, half had been done in urban areas. The volume of cataract surgery by cataract physician as well as the quantity of the ophthalmologist had been Wee1 inhibitor higher than those who work in secondary hospitals. The average cataract surgery volume of tertiary hospitals in towns as well as the average Immediate access annual cataract surgery volume of the particular surgeons are much more than those for the secondary hospitals when you look at the towns, however it is contrary in exurban places. Conclusion The excessive thickness of tertiary hospitals in metropolitan area and bad ophthalmology service capacity in additional hospitals in residential district and exurban areas have actually limited the fast growth price of cataract surgery and even a decline in Shanghai public hospitals. (Chin J Ophthalmol, 2020, 56 615-620).Objective To explore the short term ramifications of background PM2.5 in the outpatient visits of allergic conjunctivitis among kiddies in Shenzhen. Techniques it absolutely was a ecological research. Data on daily visits including date of go to, intercourse and age from children with allergic conjunctivitis were gathered from Shenzhen Eye Hospital and Shenzhen Children’s medical center in 2018. Associated data on polluting of the environment (PM2.5, PM10, SO2, NO2, CO and O3) and meteorology (atmospheric pressure, temperature and general humidity) had been additionally collected. Pearson correlation evaluation ended up being utilized for normal distribution data and Spearman position correlation analysis was useful for non-normal distribution data. Generalized additive model was made use of to calculate the effect of PM2.5 pollution on allergic conjunctivitis outpatients and the lagging impacts. Leads to 2018, there have been 16 133 allergic conjunctivitis outpatients in the two hospitals. The maximum age was 18 many years while the minimal age had been 2 months. Guys accounted for 49.3%. The daily average concentration of PM2.5 was 22 (15, 31) μg/m3. Changes of this focus of PM2.5 had an optimistic correlation with the level of allergic conjunctivitis visits, while the Spearman correlation coefficient was 0.150 (P=0.004). The solitary pollutant model revealed that the strongest result showed up at 3 times (RR=1.111， 95%CI1.071-1.152). A 10 μg/m3 increase of PM2.5 would result in an excessive wide range of sensitive conjunctivitis outpatients just as much as 11.112% (95%CI：7.011%-15.212%). In the several atmosphere pollutants designs, after the introduction of NO2, O3 and CO, the focus of PM2.5 showed an enhanced influence on the amount of medical center visits due to allergic conjunctivitis for a passing fancy time, and also the huge difference had been statistically significant (P less then 0.05). Conclusion Changes associated with the focus of PM2.5 had an optimistic correlation with day-to-day outpatient visits of allergic conjunctivitis among young ones in Shenzhen. (Chin J Ophthalmol, 2020, 56 608-614).Objective to analyze the prevalence and threat aspects of pterygium in Han and Yugur populations aged 40-79 years in Gansu Province, China. Methods this is a cross-sectional research. A multistage cluster sampling method with urbanization level-based stratification had been utilized. Multiple logistic regression analysis was carried out to judge the risk aspects of pterygium. Results a complete Microbial mediated of 4 193 men and women (1 840 males, 2 353 females; 3 035 Hans, 1 158 Yugurs) elderly over 40 in Gansu Province had been included in the study. One of them, 391 customers (9.3%) were discovered to have pterygium. The prevalence of pterygium modified for age and sex ended up being 9.3%. The prevalence rates of Han and Yugur individuals were 8.8% (267 customers) and 10.7% (124 customers), respectively, and there was no significant difference among them (χ²=3.629, P=0.057). Multivariate regression analysis revealed that the danger aspects of pterygium included age (OR=3.66, 95%CI 2.26-5.92), period of residence in the country side (OR=2.18, 95%CWe 1.41-3.38), and training level (OR=0.49, 95%CWe 0.29-0.83). Within the Han group, the danger elements of pterygium were age (OR=3.84, 95%CI 2.18-6.78) and duration of outlying residence (OR=2.02, 95%CI 1.23-3.33), and a higher level of knowledge (OR=0.36, 95%CI 0.20-0.66) had been a protective factor.