Review
Ophthalmology
Smriti Nagpal Gupta, Ruchi Goel, Sushil Kumar
Summary: Cataract is the leading cause of avoidable blindness, and manual small-incision cataract surgery (MSICS) has gained renewed significance, especially during the COVID-19 pandemic, due to its safety and cost-effectiveness. Understanding the factors that may influence surgically induced astigmatism is crucial for patients seeking spectacle independence after surgery.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2022)
Review
Ophthalmology
Sabyasachi Pattanayak, Satanshu Mathur, Ashok K. Nanda, B. Nageswar Rao Subudhi
Summary: Cataract is a major cause of visual impairment worldwide, but sutureless manual small-incision cataract surgery (MSICS) offers equivalent visual results at lower expenses. However, the larger size of the incision in the procedure often leads to higher astigmatism, which is an important cause of poor uncorrected visual acuity after surgery. Nevertheless, there are various techniques described in the literature that can minimize or eliminate surgically induced astigmatism (SIA) by adopting appropriate wound construction techniques during surgery.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Ophthalmology
Manisha Rathi, Ruchi Dabas, Ritesh Verma, Inder M. Rustagi, Satanshu Mathur, Sweety Dhania
Summary: This study compared the surgically induced astigmatism (SIA) caused by different incisions in manual small-incision cataract surgery (MSICS). The results showed that the chevron incision resulted in the least SIA, followed by the frown incision and straight incision. For patients with with-the-rule (WTR) astigmatism, the superiorly placed chevron incision provided optimal visual outcomes and minimal SIA. The temporal frown incision also had good results for patients with against-the-rule (ATR) astigmatism.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Ophthalmology
Jagannath Boramani, Jatinder Bali, Priyanka Boramani, Ojasvini Bali
Summary: Advanced instrumentation and intraocular lenses allow for precise correction of refractive errors. The surgically correcting astigmatism technique can effectively handle preoperative astigmatism and provide improved visual outcomes.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Ophthalmology
Manisha Rathi, Monika Dahiya, Ruchi Dabas, Inder Mohan Rustagi, Sumit Sachdeva, Sweety Dhania
Summary: The study demonstrates that the surgically induced astigmatism (SIA) in MSICS can be significantly reduced by using a single, central, perpendicular 10-0 polyamide suture in a superiorly placed straight scleral incision.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Ophthalmology
Ruchi Goel, Ruchita Sontakke, Shalin Shah, Vaibhav Nagpal, Sushil Kumar, Omeshwer Koli, Shweta Ojha, Swati Saini, Deepanjali Arya
Summary: This study aimed to investigate the effect of wound size modulation on pre-existing astigmatism. The results showed that by customizing the incision size, it is possible to effectively manage pre-existing corneal astigmatism of less than 3.00 D.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Ophthalmology
Narinder Kumar, Gagandeep Kaur, Charu Chadha, Neha Sethi, Nr Gupta, Sugandhi Gauri
Summary: The study evaluated the visual acuity and surgically induced astigmatism in patients undergoing manual small-incision cataract surgery (SICS) with nucleus management by the viscoexpression technique. The results showed that manual SICS can achieve early visual rehabilitation and reduce postoperative astigmatism.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Ophthalmology
Amulya Sahu, Jatinder Bali, Chinmaya Sahu, Deepak Mishra, Aarti Heda, Nilutparna Deori
Summary: The cataract surgery rate in India is relatively high but varies across different regions and populations. The use of smaller incisions in cataract surgery has been shown to have benefits such as lower astigmatism and faster recovery. This retrospective observational study examined the outcomes of using a 2 mm incision in cataract surgery, demonstrating good correction of astigmatism and visual recovery.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Medicine, General & Internal
Dnyanoba Mukund Darade, Jayshri Hariharrao Pendamkar, Bhagyashree Suresh Wangikar
Summary: This study compared the efficacy of Frown incision and Batwing incision in MSICS, and found that Frown incision was superior in reducing postoperative SIA and improving unaided visual acuity.
JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH
(2023)
Article
Ophthalmology
H. Soumya, Prashansa Yadav, S. K. Prabhakar
Summary: This study compared the change in astigmatism caused by frown, straight, and smile incisions in patients with pre-existing against-the-rule (ATR) astigmatism. The results showed that frown incision had the greatest reduction in astigmatism and was the best approach.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Ophthalmology
Amulya Sahu, Jatinder Bali, Chinmaya Sahu, Nilutparna Deori
Summary: This article describes a surgical technique for manual small-incision cataract extraction with phacofracture and presents its outcomes. The technique is found to effectively reduce astigmatism and result in good visual recovery in cataract surgery.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Ophthalmology
Manisha Nada, D. Rohit, S. Singh, A. K. Khurana, Sakshi Lochab, Anjali Kharolia
Summary: This study examined the effect of site and shape of scleral incisions for cataract surgery on corneal curvature. The results showed that temporal incisions and chevron-shaped incisions can reduce surgically-induced astigmatism and be utilized to tailor postoperative astigmatism.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Medicine, General & Internal
Kazutaka Kamiya, Kei Iijima, Wakako Ando, Nobuyuki Shoji
Summary: The study found that after standard cataract surgery, the arithmetic mean of surgically induced astigmatism (M-SIA) increased by approximately 0.5 D, while the centroid of surgically induced astigmatism (C-SIA) decreased significantly to approximately 40% of the M-SIA, exhibiting a tendency towards with-the-rule astigmatism.
FRONTIERS IN MEDICINE
(2021)
Article
Medicine, General & Internal
Shengtao Liu, Lanhui Yu, Zhiyuan Lu, Chiwen Cheng, Xuejun Gu, Jingying Liu, Xingtao Zhou
Summary: The influence of keratometric astigmatism on visual outcomes following small incision lenticule extraction (SMILE) was investigated. The study found that there was no significant difference in treatment centration and visual quality between high keratometric astigmatism and low keratometric astigmatism groups at the postoperative 6-month visit.
FRONTIERS IN MEDICINE
(2022)
Article
Ophthalmology
Vishwa Jyoti Bahl, Krishan Pal Singh Malik, Braham Prakash Guliani
Summary: This study aimed to evaluate the effect of cautery on surgically induced astigmatism in Indian patients undergoing manual small-incision cataract surgery (MSICS). The results showed that the use of cautery in MSICS does not increase surgically induced post-operative astigmatism, and the magnitude of surgically induced astigmatism decreases with time.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Ophthalmology
Nathan Congdon, Augusto Azuara-Blanco, Yoram Solberg, Carlo E. Traverso, Michele Iester, Carlo Alberto Cutolo, Alessandro Bagnis, Tin Aung, Scott J. Fudemberg, Richard Lindstrom, Thomas Samuelson, Kuldev Singh, Eytan Z. Blumenthal, Gus Gazzard
Summary: This study aims to compare the efficacy and non-inferiority of Eagle direct selective laser trabeculoplasty (DSLT) and selective laser trabeculoplasty (SLT) in reducing intraocular pressure (IOP) in patients with open angle glaucoma (OAG). The study is a randomized controlled trial with the primary outcome being the mean change in IOP at 6 months.
BRITISH JOURNAL OF OPHTHALMOLOGY
(2023)
Article
Ophthalmology
Olusola Oluyinka Olawoye, Olufunmilayo Fawole, Adeyinka O. Ashaye, Ving Fai Chan, Augusto Azuara-Blanco, Nathan Congdon
Summary: This study explores the effectiveness of community outreach screening in improving equity and access to eye care for glaucoma in Nigeria. The findings suggest that outreach screenings attract older, less educated, and lower-income individuals with lower knowledge and awareness of glaucoma compared to patients presenting spontaneously at a clinic. Furthermore, there was poor uptake of referral care due to lack of perceived need and transportation costs. Interventions such as free transportation and educational efforts may help improve the uptake of referral services and maximize equity gains.
BRITISH JOURNAL OF OPHTHALMOLOGY
(2023)
Article
Ophthalmology
Lewei Tang, Liang Chen, Cong Ye, Jingwei Zheng, Yi Zhou, Yan Tao, Qiangjie Huang, Xiaoyan Wang, Xiao Shang, Xiafei Pan, Nathan Congdon, Yuanbo Liang
Summary: This study found that Yang-deficient constitution and higher intraocular pressure are risk factors for visual field progression in normal-tension glaucoma (NTG) patients, which is consistent with prior research.
BRITISH JOURNAL OF OPHTHALMOLOGY
(2023)
Article
Ophthalmology
Guangming Jin, Minjie Zou, Chi Liu, Aiming Chen, Yi Sun, Charlotte Aimee Young, Yi Li, Danying Zheng, Nathan Congdon, Xiaotong Han
Summary: This study investigated the burden of near vision loss (NVL) in China from 1990 to 2019. The results showed a significant increase in the prevalence and disability-adjusted life-years (DALYs) due to NVL in China, with higher rates in women. Compared with neighboring countries, China has a higher burden of NVL. Despite a small decrease in recent years, measures are needed to reduce this burden.
BRITISH JOURNAL OF OPHTHALMOLOGY
(2023)
Article
Ophthalmology
Jingxin He, Aiming Chen, Minjie Zou, Charlotte Aimee Young, Ling Jin, Danying Zheng, Guangming Jin, Nathan Congdon
Summary: The global burden of trachoma, a common eye disease, has decreased significantly from 1990 to 2019. Lower human development index (HDI), socioeconomic status, and educational level are associated with a higher national disease burden of trachoma.
BRITISH JOURNAL OF OPHTHALMOLOGY
(2023)
Article
Ophthalmology
Yize Chen, Lynne Lohfeld, Di Song, Clara Pak, Xia Gong, Wenzhe Zhou, Yuanbo Liang, Nathan Congdon
Summary: This study explored the perception of selective laser trabeculoplasty (SLT) among physicians and patients and the acceptance of using SLT as a first-line treatment for glaucoma. It found that SLT has advantages in terms of safety and repeatability, but concerns about the durability of its effect were raised by both physicians and patients. Factors such as practice preference, personal motivation, and patient characteristics may influence treatment choice. Lack of knowledge and high expectations were observed among most patients. Physicians reported insufficient evidence supporting the use of SLT as first-line therapy and called for locally relevant guidelines. The study suggests that SLT could be a recommended first-line treatment for glaucoma, but barriers to its adoption should be addressed.
OPHTHALMIC EPIDEMIOLOGY
(2023)
Article
Ophthalmology
Xinyu Zhao, Jianqiang Lin, Shanshan Yu, Liqiong Xie, Ling Jin, Kun Xiong, Ching-Kit Tsui, Yue Xu, Benjuan Wu, Bin Liu, Wei Wang, Nathan Congdon, Wenyong Huang, Mingguang He, Xiaoling Liang
Summary: This study aimed to report the 6-year incidence, causes, and risk factors for vision loss (visual impairment and blindness) among elderly adults in rural southern China. The study found that cataract and refractive errors were the most common causes of vision loss. Older age, female sex, lower education, living alone, and longer axial length were significantly associated with greater incident vision loss.
BRITISH JOURNAL OF OPHTHALMOLOGY
(2023)
Article
Public, Environmental & Occupational Health
Senlin Lin, Yingyan Ma, Yi Xu, Lina Lu, Jiangnan He, Jianfeng Zhu, Yajun Peng, Tao Yu, Nathan Congdon, Haidong Zou
Summary: This study compares the cost-effectiveness of an artificial intelligence (AI) model with manual grading in community-based telemedicine screening for diabetic retinopathy. The results show that in low-income countries, replacing manual grading with an AI model does not improve screening outcomes due to lower labor costs and minimal savings in healthcare expenditures.
JMIR PUBLIC HEALTH AND SURVEILLANCE
(2023)
Editorial Material
Ophthalmology
Nathan Congdon, Ving Fai Chan
AMERICAN JOURNAL OF OPHTHALMOLOGY
(2023)
Article
Ophthalmology
Noelle Whitestone, John Nkurikiye, Jennifer L. Patnaik, Nicolas Jaccard, Gabriella Lanouette, David H. Cherwek, Nathan Congdon, Wanjiku Mathenge
Summary: This study demonstrates the practical application of AI-based diabetic retinopathy screening, showing high accuracy and patient satisfaction. It indicates the promising potential of AI in diabetic retinopathy screening.
BRITISH JOURNAL OF OPHTHALMOLOGY
(2023)
Article
Ophthalmology
Zitian Liu, Wenyong Huang, Zhenyu Wang, Ling Jin, Nathan Congdon, Yingfeng Zheng, Shida Chen, Yizhi Liu
Summary: This study demonstrates that the portable, self-imaging OCT is highly consistent with clinic-based SD-OCT in measuring CST and identifying most retinal lesions.
BRITISH JOURNAL OF OPHTHALMOLOGY
(2023)
Article
Ophthalmology
Olusola Olawoye, Jennifer Washaya, Girum W. Gessesse, Komi Balo, Jeremie Agre, Boniface Macheka, Nkiru Kizor-Akaraiwe, Jonathan Pons, Tarela Sarimiye, Adeyinka Ashaye, Farouk Garba, Richard Chitedze, Affiong Ibanga, Abdull Mahdi, Adunola Ogunro, Patrick Budengeri, Haroun Adetunji Ajibode, Lemlem Tamrat, Adeola Onakoya, Suhanyah Okeke, Abeba T. Giorgis, Chimdi Chuka Okosa, Kayode Fowobaje, Stephen Cook, Scott Lawrence, Ving Fai Chan, Augusto Azuara-Blanco, Nathan Congdon, Tony Realini
Summary: In sub-Saharan Africa, most physicians prefer to recommend primary medical therapy for glaucoma, while laser therapy may be underutilized where available. As the severity of glaucoma increases, the recommendation for laser therapy decreases, surgery increases, and medical therapy remains unchanged.
JOURNAL OF GLAUCOMA
(2023)
Article
Ophthalmology
Di Song, Sujie Fan, Qiang Zhou, Xiaohui Yang, Sizhen Li, Lynne Lohfeld, Weihe Zhou, Nathan Congdon, Yuanbo Liang, Ningli Wang
Summary: This study assessed the health-related quality of life and its determinants among rural glaucoma participants in northern China. The results showed that glaucoma participants had worse visual function and quality of life compared to age-matched normal controls, and primary angle-closure glaucoma participants had lower visual function and quality of life compared to primary open-angle glaucoma participants. These findings are important for public health strategies and cost-effectiveness research for glaucoma in rural China.
Article
Health Care Sciences & Services
Michael D. Abramoff, Noelle Whitestone, Jennifer L. Patnaik, Emily Rich, Munir Ahmed, Lutful Husain, Mohammad Yeadul Hassan, Md. Sajidul Huq Tanjil, Dena Weitzman, Tinglong Dai, Brandie D. Wagner, David H. Cherwek, Nathan Congdon, Khairul Islam
Summary: Autonomous artificial intelligence increases healthcare productivity, reducing health disparities and increasing access to care.
NPJ DIGITAL MEDICINE
(2023)
Review
Endocrinology & Metabolism
Katie Curran, Noelle Whitestone, Bedowra Zabeen, Munir Ahmed, Lutful Husain, Mohammed Alauddin, Mohammad Awlad Hossain, Jennifer L. Patnaik, Gabriella Lanouette, David Hunter Cherwek, Nathan Congdon, Tunde Peto, Nicolas Jaccard
Summary: This study found that artificial intelligence was able to accurately detect diabetic retinopathy in children and young adults with diabetes, despite being trained on adults. It may be an effective tool to reduce demands on scarce physician resources in low-resource settings for the care of children with diabetes.
CLINICAL MEDICINE INSIGHTS-ENDOCRINOLOGY AND DIABETES
(2023)
