Publications by authors named "Yuancun Li"
Purpose: To investigate the association between children's school entrance age and refractive status and prevalence of myopia in southern China.
Methods: Population-based Cross-sectional study was conducted from September 2020 to June 2021 in Shantou, southern China, enrolling primary schoolchildren in the city. The school entrance age was calculated as the months from the birth date to the entrance date, divided by 12.
Background: This study aims to investigate the agreement between the NK and KS formulas in predicting the vault after implantation of an EVO-implantable collamer lens (ICL).
Methods: This retrospective study included 106 eyes of 57 patients who underwent ICL-V4c implantation. Preoperative vault prediction was conducted by utilizing the NK and KS formulas, with postoperative measurements by anterior segment optical coherence tomography (AS-OCT) at one month.
Article Synopsis
- The study aimed to analyze how the rates of anisometropia (unequal refractive power between the eyes) among Chinese children changed before and during the COVID-19 pandemic.
- A total of 11,235 children, aged 6-13, were followed from various years between 2010 and 2021, with the research showing a significant increase in anisometropia cases in children who visited in 2020 (during the pandemic) compared to previous years.
- Key risk factors identified included older age and greater initial refractive differences between the eyes, highlighting the pandemic's impact on eye health trends in these children.
Accuracy of new intraocular lens calculation formulas in Chinese eyes with short axial lengths.
Front Med (Lausanne)
October 2023
Purpose: To compare the measurement accuracy of new/updated intraocular lens (IOL) power calculation methods, namely, Kane, Emmetropia Verifying Optical (EVO), with existing methods (Barrett Universal II, Olsen, Haigis, Hoffer Q, Holladay 1, SRK/T) in Chinese eyes with axial lengths ≤ 22.5 mm.
Methods: The study included data from patients who underwent uneventful cataract surgery with the insertion of ZCB00 IOL.
Objectives: To determine the progression and incidence of myopia in Chinese schoolchildren in the post-COVID-19 pandemic period in Shantou, China.
Design: Prospective cohort study.
Setting: Shantou Myopia Study, China.
Aims: To assess the global burden and economic inequalities in the distribution of blindness and vision loss between 1990 and 2019.
Methods: A secondary analysis of the Global Burden of Diseases, Injuries and Risk Factors Study (GBD) 2019. Data for disability-adjusted life-years (DALYs) due to blindness and vision loss were extracted from the GBD 2019.
Article Synopsis
- The study investigates trends in multiple sclerosis (MS) burden globally, regionally, and nationally from 1990 to 2019, focusing on incidence, deaths, and disability-adjusted life years (DALYs).
- Analysis revealed an increase in global MS cases, deaths, and DALYs, with high socio-demographic index (SDI) regions experiencing the greatest burden.
- Interestingly, the age-standardized rates (ASR) for these metrics slightly declined, indicating varying trends with different age groups and over time.
Article Synopsis
- The Shantou Myopia Study aimed to assess the prevalence and risk factors for myopia in schoolchildren in southern China, involving over 724,000 students.
- It found that 51.8% of participants had myopia, with the rates increasing significantly with age and in urban environments, along with notable differences between education levels.
- Additionally, around 60% of those with myopia were uncorrected, highlighting a critical need for eye care education in schools.
Purpose: Hyperopic surprises tend to occur in axial myopic eyes and other factors including corneal curvature have rarely been analyzed in cataract surgery, especially in eyes with long axial length (≥ 26.0 mm). Thus, the purpose of our study was to evaluate the influence of keratometry on four different formulas (SRK/T, Barrett Universal II, Haigis and Olsen) in intraocular lens (IOL) power calculation for long eyes.
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- This study evaluated the effectiveness of the IOLMaster700, an optical biometer, in measuring the vault of implanted Collamer lenses (ICL) compared to another method, AS-OCT.
- The researchers found that the IOLMaster700 provided highly reliable measurements, with strong correlations to AS-OCT results, although some values from IOLMaster700 were slightly lower but not significantly.
- The conclusions suggest that IOLMaster700 is an accurate and consistent tool for measuring ICL vault and related parameters, making it a useful option for eye surgeries.
To evaluate the accuracy of different intraocular lens (IOL) power calculation formulas and develop prognostic nomograms to predict the risk of postoperative refractive error in primary angle-closure glaucoma (PACG) patients. A total of 111 eyes with PACG underwent goniosynechialysis combined with phacoemulsification and IOL implantation were included. SRK/T, Barrett II, Hoffer Q, and Kane formulas were used to predict postoperative refraction.
View Article and Find Full Text PDFAim: To perform a Meta-analysis on the precision and safety of femtosecond laser (FSL) capsulotomy compared with manual continuous curvilinear capsulotomy (CCC).
Methods: We searched PubMed, EMBASE, Web of Science, the Cochrane Library databases, and Clinical Trials.gov that maintained our inclusion criteria.