Vitrectomy in Myopic Maculopathy

2021 ◽  
pp. 16-20
Keyword(s):  
Surgical Approach ◽  
High Myopia ◽  
Low Vision ◽  
Degenerative Changes ◽  
Pathological Changes ◽  
Pathological Myopia ◽  
New Developments ◽  
The World ◽  
Myopic Maculopathy

Myopia is one of the most important causes of low vision in the world. While high myopia causes pathological changes in many tissues in the eye, it also causes degenerative changes in the retina. This review mentions the vitreoretinal surgical approach, difficulties in surgery, and new developments in maculopathies due to pathological myopia.

Threats to the Economic Security of Russia in the Context of Trends in the Development of Africa

2020 ◽  
pp. 112-125
Author(s):  
Alexander I. Selivanov ◽  
Vladimir G. Starovoitov ◽  
Dmitriy V. Troshin
Keyword(s):  
National Economy ◽  
Economic Security ◽  
Economic Transformation ◽  
Economic Crime ◽  
African Continent ◽  
New Developments ◽  
External Threats ◽  
National Economic ◽  
The World ◽  
National Economic Security

Situation and value of the African continent on the economic and social cardmap of the world dynamically changes and will continue to change throughout all the 21st century with strengthening of the Africa positions in the world. In Russia all the complex of threats and problems which arise owing to political and economic transformation of Africa is not adequately estimated. The scientific literature on economic security issues presents an expanded set of internal and external threats to the national economy that goes beyond the traditional areas of the shadow economy, corruption, economic crime and related segments, including the internal economic stability of the national economy and inter-country competition, the quality of state strategic management, studies of the specifics of ensuring economic security in the conditions of the sixth technological order, intercultural communication and their impact on the economic relations between countries, etc. Incomplete use of such approach to strategy for the countries of Africa creates additional threats and risks for Russia. An analysis of security problems in Africa revealed that studies of economic security in the context of African development trends in Russia are conducted in an unsatisfactory volume, not always taking into account the results of new developments in the field of ensuring economic security. Even the large shifts happening on the African continent, forecasts of this dynamics sometimes are poorly known to experts of a profile of economic security, and many experts of an economic profile including working in the African subject often do not accurately distinguish problems of “economic cooperation” and “the Russian – African relations”, on the one hand, and “economic security of Russia” – with another. In this regard the new scientific problem is proved: need for deeper analysis of trends of economic and social development in Africa as an important component of a system of ensuring national economic security of Russia in the current period and in the future into account the new developments in the sphere of economic security. The main directions of activating scientific research and concentration of practical efforts to increase national economic security, neutralize threats and reduce risk for Russia in the designated context are formulated.

Battlefields from Event to Heritage

2020 ◽  
Author(s):  
John Carman ◽  
Patricia Carman
Keyword(s):  
Twentieth Century ◽  
Security Studies ◽  
New Developments ◽  
Critical Security Studies ◽  
The Past ◽  
New Approaches ◽  
Large Numbers ◽  
The World ◽  
War And Conflict ◽  
Modern War

What is—or makes a place—a ‘historic battlefield’? From one perspective the answer is a simple one—it is a place where large numbers of people came together in an organized manner to fight one another at some point in the past. But from another perspective it is far more difficult to identify. Quite why any such location is a place of battle—rather than any other kind of event—and why it is especially historic is more difficult to identify. This book sets out an answer to the question of what a historic battlefield is in the modern imagination, drawing upon examples from prehistory to the twentieth century. Considering battlefields through a series of different lenses, treating battles as events in the past and battlefields as places in the present, the book exposes the complexity of the concept of historic battlefield and how it forms part of a Western understanding of the world. Taking its lead from new developments in battlefield study—especially archaeological approaches—the book establishes a link to and a means by which these new approaches can contribute to more radical thinking about war and conflict, especially to Critical Military and Critical Security Studies. The book goes beyond the study of battles as separate and unique events to consider what they mean to us and why we need them to have particular characteristics. It will be of interest to archaeologists, historians, and students of modern war in all its forms.

scholarly journals Macular buckling versus vitrectomy on macular hole associated macular detachment in eyes with high myopia: a randomised trial

2021 ◽  
pp. bjophthalmol-2020-317800
Author(s):  
Xiujuan Zhao ◽  
Yonghao Li ◽  
Wei Ma ◽  
Ping Lian ◽  
Xiling Yu ◽  
...  
Keyword(s):  
Success Rate ◽  
Macular Hole ◽  
High Myopia ◽  
Randomised Trial ◽  
Case Series ◽  
Primary Treatment ◽  
Closure Rate ◽  
Macular Detachment ◽  
The Difference ◽  
Myopic Maculopathy

AimTo compare the efficacy of macular buckling (MB) and pars plana vitrectomy (PPV) for full-thickness macular holes (FTMH) and associated macular detachment (MD) in highly myopic eyes.MethodsProspective interventional case series of eyes undergoing PPV or MB for FTMH and MD.Main outcome measuresBest-corrected visual acuity (BCVA) at postoperative month 24. Other measured outcomes include the initial surgical success rate, macular hole closure rate and the progression of myopic maculopathy.ResultsA total of 53 eyes from 53 participants were included in this study (26 participants receiving MB and 27 participants receiving PPV), and finally 49 eyes from 49 participants (25 participants in the MB group and 24 participants in the PPV group) were analysed. At postoperative month 24, the BCVA had improved significantly in those that underwent either MB (p<0.001) or PPV (p=0.04). The difference between the groups was not significant (p=0.653). The surgical failure rate after the primary treatment was significantly higher in the PPV group than the MB group (25.00% vs 4.00%, respectively; p=0.04). The macular closure rate was higher in the MB group compared with the PPV group, but the difference was not statistically significant (64.00% vs 58.33%, respectively; p=0.45). Myopic maculopathy development may be more severe following PPV than following MB surgery.ConclusionPatients with high myopia obtained anatomical and functional improvements from either MB or PPV. However, MB achieved a significantly higher success rate in retinal reattachment compared with PPV.Trial registration numberNCT03433547.

scholarly journals Update and guidance on management of myopia. European Society of Ophthalmology in cooperation with International Myopia Institute

2021 ◽  
pp. 112067212199896
Author(s):  
János Németh ◽  
Beáta Tapasztó ◽  
Wagih A Aclimandos ◽  
Philippe Kestelyn ◽  
Jost B Jonas ◽  
...  
Keyword(s):  
European Society ◽  
High Myopia ◽  
Treatment Options ◽  
Vision Impairment ◽  
Pathological Myopia ◽  
Myopia Progression ◽  
Preventive Actions ◽  
Prevalence Estimates ◽  
Number Of Individuals ◽  
Myopia Control

The prevalence of myopia is increasing extensively worldwide. The number of people with myopia in 2020 is predicted to be 2.6 billion globally, which is expected to rise up to 4.9 billion by 2050, unless preventive actions and interventions are taken. The number of individuals with high myopia is also increasing substantially and pathological myopia is predicted to become the most common cause of irreversible vision impairment and blindness worldwide and also in Europe. These prevalence estimates indicate the importance of reducing the burden of myopia by means of myopia control interventions to prevent myopia onset and to slow down myopia progression. Due to the urgency of the situation, the European Society of Ophthalmology decided to publish this update of the current information and guidance on management of myopia. The pathogenesis and genetics of myopia are also summarized and epidemiology, risk factors, preventive and treatment options are discussed in details.

scholarly journals Observational study of clinical characteristics of dome-shaped macula in Chinese Han with high myopia at Zhongshan Ophthalmic Centre

BMJ Open ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. e021887 ◽  
Author(s):  
Xiujuan Zhao ◽  
Xiaoyan Ding ◽  
Cancan Lyu ◽  
Shiyi Li ◽  
Yu Lian ◽  
...  
Keyword(s):  
Visual Acuity ◽  
High Myopia ◽  
Choroidal Thickness ◽  
Clinical Characteristics ◽  
Serous Retinal Detachment ◽  
Protective Mechanism ◽  
Chinese Han ◽  
Corrected Visual Acuity ◽  
Myopic Maculopathy ◽  
Best Corrected Visual Acuity

PurposeTo evaluate the prevalence of dome-shaped macula (DSM) in highly myopic eyes among Chinese Han and to detect the correlation with myopic maculopathy and macular complications.MethodsA total of 736 Chinese Han patients (1384 eyes) with high myopia (refractive error≤6.0 diopters or axial length ≥26.5 mm) are reviewed based on information entered into a high-myopia database at Zhongshan Ophthalmic Centre. Subfoveal choroidal thickness (SFCT) and parafoveal choroidal thickness (PFCT) are measured. The prevalence of DSM in patients with myopic maculopathy is categorised from C0 to C4. Clinical features, including macular complications, SFCT and PFCT, are compared between myopic eyes with and without DSM.ResultsAmong the 1384 eyes, 149 (10.77%) show DSM. In highly myopic eyes without macular complications, the best corrected visual acuity is significantly worse in patients with DSM (p=0.002), and the ratio between subfoveal and parafoveal choroidal thickness (S/PCT) is significantly elevated in patients with DSM (p=0.021). The proportion of foveal schisis (17.24% vs 62.86%) is much lower in eyes with DSM compared with those without DSM. However, the proportions of extrafoveal schisis (39.66% vs 5.37%), foveal serous retinal detachment (SRD) (5.17% vs 0) and epiretinal membrane (ERM) (24.14% vs 10.74%) are much higher in eyes with DSM. The proportion of DSM was lower in C0 and C1, but higher proportion of DSM was found in C3 and C4.ConclusionsDSM is found in 10.77% of highly myopic eyes among Chinese Han. DSM might be a protective mechanism for foveal schisis and a risk factor for extrafoveal schisis, SRD and ERM.

scholarly journals Morphology and Microcirculation Changes of Optic Nerve Head Between Simple High Myopia and Pathologic Myopia

2021 ◽  
Author(s):  
Wenquan Tang ◽  
Xuanchu Duan ◽  
Junyi Ouyang ◽  
YuLin Luo ◽  
Xilang Wang
Keyword(s):  
Optic Nerve ◽  
Optic Nerve Head ◽  
High Myopia ◽  
Structural Changes ◽  
Pathologic Myopia ◽  
Disease Development ◽  
Pathological Changes ◽  
Choroidal Perfusion ◽  
Morphology Changes

Abstract This study explored morphology and microcirculation changes of optic nerve head (ONH) in simple high myopia(SHM) and pathologic myopia(PM), in order to evaluate and identify ONH changes in the development of PM. We divided 193 right eyes of 193 patients into SHM and PM according to the retinopathy. We found that ONH is one of the earliest pathological changes in myopia, and its morphology changes were also the most obvious. PM is closely linked to the reduction of choroidal perfusion and structural changes of ONH. Microcirculation showed a significant priority changes in myopia. Further research should address whether these fndings are associated with future disease development in highly myopic eyes.

History and Theory in Anthropology

2021 ◽  
Author(s):  
Alan Barnard
Keyword(s):  
North America ◽  
New Developments ◽  
The Past ◽  
Award Winning ◽  
The World ◽  
The Subject ◽  
Post Colonialism ◽  
New Generation ◽  
History And Theory

In the past twenty years, there have been exciting new developments in the field of anthropology. This second edition of Barnard's classic textbook on the history and theory of anthropology has been revised and expanded to include up-to-date coverage on all the most important topics in the field. Its coverage ranges from traditional topics like the beginnings of the subject, evolutionism, functionalism, structuralism, and Marxism, to ideas about globalization, post-colonialism, and notions of 'race' and of being 'indigenous'. There are several new chapters, along with an extensive glossary, index, dates of birth and death, and award-winning diagrams. Although anthropology is often dominated by trends in Europe and North America, this edition makes plain the contributions of trendsetters in the rest of the world too. With its comprehensive yet clear coverage of concepts, this is essential reading for a new generation of anthropology students.

Technology, the Global Economy and other New Challenges for Civil Justice

2021 ◽  
Keyword(s):  
Global Economy ◽  
Civil Justice ◽  
New Developments ◽  
Cross Border ◽  
The World ◽  
Transnational Cooperation ◽  
Recognition And Enforcement ◽  
Judicial Proceedings ◽  
New Challenges ◽  
Electronic Technologies

This is a fresh and stimulating book on new challenges for civil justice. It brings together leading experts from across the world to discuss relevant topics of civil justice from regional, cross-border, international and comparative perspectives. <i>Inter alia</i>, this book will focus on multinational rules and systems of dispute resolution in the era of a global economy, while also exploring accountability and transparency in the course of civil justice. Transnational cooperation in cross-border insolvency, regionalism in the process of recognition and enforcement of foreign titles, and the application of electronic technologies in judicial proceedings, including new types of evidence also play a major role. <br><br><i>Technology, the Global Economy and other New Challenges for Civil Justice</i> is a compact and accessible overview of new developments in the field from across the world and written for those with an interest in civil justice.

Innovation, Creativity, Entrepreneurship Management

2021 ◽  
pp. 313-330
Author(s):  
Anoop Krishna Saxena
Keyword(s):  
Technology Management ◽  
Management Education ◽  
New Developments ◽  
Success Stories ◽  
Design Creativity ◽  
The World ◽  
Innovation And Entrepreneurship

Creativity, innovation, and entrepreneurship can bring groundbreaking new developments for humanity. The futuristic options for such developments are aplenty, if technology management education can be oriented more realistically and innovatively. Mr. Elon Musk himself is the source of ideation, design, creativity, innovation, and entrepreneurship. There are hundreds of such innovative entrepreneurs in the world whose success stories can provide sufficient insights into gathering the knowledge and information relating to innovation, creativity, and entrepreneurship. In this context, a discussion of the terms creativity, innovation, and entrepreneurship is well felicitous.

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