(Chin J Ophthalmol, 2020, 56 621-625).Objective To analyze the causes that restrict the development of cataract surgery solution capability in public hospitals in Shanghai in the last few years. Practices The condition of surgeries carried out in public hospitals are reviewed based on the data related to cataract surgery collected from the database of Shanghai Eye Disease Treatment. Meanwhile, the surgeries carried out by ophthalmologists employed in the public hospitals are studied based on the National ophthalmology service capability survey. Results The cataract surgery volume performed in public areas hospitals of Shanghai increased from 45 480 in 2013 to 51 941 in 2015. In 2014, the year on 12 months growth price of cataract surgery volume in tertiary hospitals was 8.54%, while in 2015, it was -0.21% on a yearly foundation. Significantly more than 70% cataract surgeries were performed in tertiary community hospitals. For everyone carried out in tertiary community hospitals, 80% were done in urban area. The actual surgeons in tertiary account fully for 70% associated with the real surgeons in every general public hospitals. Among all cataract surgeries performed in additional hospitals, half were carried out in cities. The quantity of cataract surgery by cataract doctor and also the amount of the ophthalmologist had been immune cytolytic activity more than those who work in additional hospitals. The average cataract surgery volume of tertiary hospitals in urban areas therefore the normal FX11 cell line annual cataract surgery amount of the actual surgeons are much higher than those associated with the secondary hospitals when you look at the urban areas, however it is contrary in exurban areas. Conclusion The excessive thickness of tertiary hospitals in metropolitan location and bad ophthalmology service capability in secondary hospitals in residential district and exurban areas have limited the fast development rate of cataract surgery as well as a decline in Shanghai general public hospitals. (Chin J Ophthalmol, 2020, 56 615-620).Objective To explore the short-term outcomes of background PM2.5 from the outpatient visits of allergic conjunctivitis among young ones in Shenzhen. Techniques it had been a ecological research. Data on day-to-day visits including day of see, intercourse and age from children with sensitive conjunctivitis had been collected from Shenzhen Eye Hospital and Shenzhen kid’s Hospital in 2018. Relevant information on air pollution (PM2.5, PM10, SO2, NO2, CO and O3) and meteorology (atmospheric stress, temperature and general humidity) were also collected. Pearson correlation evaluation ended up being useful for typical distribution information and Spearman rank correlation analysis had been employed for non-normal circulation data. Generalized additive model ended up being made use of to calculate the impact of PM2.5 pollution on allergic conjunctivitis outpatients and also the lagging impacts. Results In 2018, there have been 16 133 sensitive conjunctivitis outpatients in the two hospitals. The utmost age was 18 many years while the minimal age ended up being 2 months. Guys taken into account 49.3%. The daily average concentration of PM2.5 was 22 (15, 31) μg/m3. Modifications associated with the focus of PM2.5 had an optimistic correlation aided by the level of allergic conjunctivitis visits, together with Spearman correlation coefficient was 0.150 (P=0.004). The solitary pollutant design revealed that the strongest effect appeared at 3 times (RR=1.111， 95%CI1.071-1.152). A 10 μg/m3 increase of PM2.5 would result in an excessive amount of sensitive conjunctivitis outpatients as much as 11.112per cent (95%CI：7.011%-15.212%). Within the multiple air toxins models, following the introduction of NO2, O3 and CO, the concentration of PM2.5 revealed an enhanced effect on the amount of medical center visits due to allergic conjunctivitis for a passing fancy day, and the distinction had been statistically considerable (P less then 0.05). Conclusion Changes for the focus of PM2.5 had an optimistic correlation with everyday outpatient visits of sensitive conjunctivitis among kiddies in Shenzhen. (Chin J Ophthalmol, 2020, 56 608-614).Objective To investigate the prevalence and risk elements of pterygium in Han and Yugur communities elderly 40-79 many years in Gansu Province, Asia. Practices this is a cross-sectional research. A multistage cluster sampling method with urbanization level-based stratification had been used. Several logistic regression evaluation ended up being carried out to guage the chance elements of pterygium. Outcomes a complete animal component-free medium of 4 193 folks (1 840 males, 2 353 females; 3 035 Hans, 1 158 Yugurs) elderly over 40 in Gansu Province had been contained in the study. One of them, 391 patients (9.3%) were discovered having pterygium. The prevalence of pterygium modified for age and sex had been 9.3%. The prevalence prices of Han and Yugur participants were 8.8% (267 clients) and 10.7% (124 clients), correspondingly, and there is no significant difference among them (χ²=3.629, P=0.057). Multivariate regression evaluation showed that the chance facets of pterygium included age (OR=3.66, 95%CI 2.26-5.92), length of residence when you look at the country (OR=2.18, 95%CWe 1.41-3.38), and education level (OR=0.49, 95%CWe 0.29-0.83). In the Han group, the risk facets of pterygium were age (OR=3.84, 95%CWe 2.18-6.78) and duration of rural residence (OR=2.02, 95%CI 1.23-3.33), and a greater degree of training (OR=0.36, 95%CWe 0.20-0.66) ended up being a protective factor.