Trachoma is the leading infectious cause of blindness (2). It is characterized by repeated
conjunctival infection with particular strains of Chlamydia trachomatis. This scars the conjunctivae and,
in some cases, leads to trichiasis with or without entropion. The abrasive action of eyelashes can
d...amage the cornea. In 2018, trachoma affected the poorest residents of the poorest communities of 43
countries
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WHO Fact sheets, questions and answers.
Trachoma is a disease of the eye and the leading infectious cause of blindness worldwide.
Trachoma is one of the 17 WHO-defined Neglected Tropical Diseases
(NTDs) that affect over 1 billion of the world’s poorest and most
marginalized people. It is caused by the bacterium chlamydia trachomatis.
This manual is designed to provide specific information for trachomatous trichiasis (TT) trainers who are training others to undertake surgery for entropion trachomatous trichiasis (TT). Other approaches are not addressed. The manual is divided into two parts. The first part covers specifics designe...d for training TT surgeon candidates, and serves as a resource document. The trainer can elect to have trainees read the material directly, use this manual as a guide for creating a training presentation, or use it in other ways to assist in the training. The manual contains both knowledge that should be imparted during training and a description of the skills that need to be developed and assessed during practice and surgery sessions. The second part is designed only for the trainers of the surgeon trainees and covers selection and final assessment of the trainees.
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Trachoma causes more vision loss and blindness than any other infection in the world. This disease is caused by Chlamydia trachomatis bacteria. Other variants or strains of these bacteria can cause a sexually transmitted infection (chlamydia) and disease in lymph nodes.
This is photomicrograph ...of a conjunctival smear that revealed the presence of what are known as, intracytoplasmic inclusions Trachoma is easily spread through direct personal contact such as from fingers, through shared towels and clothes, and through flies that have been in contact with the eyes or nose of an infected person. When left untreated, repeated Chlamydia trachomatis infections in the eye can cause severe scarring on the inside of the eyelid. This can cause the eyelashes to scratch the cornea (trichiasis). In addition to causing pain, trichiasis permanently damages the cornea and can lead to irreversible blindness.
Chlamydia trachomatis infections spread in areas that lack access to safely managed drinking water and sanitation systems. Trachoma affects the most resource-limited communities in the world. Globally, almost 1.9 million people have vision loss because of trachoma, and it causes 1.4% of all blindness worldwide.1 In 2021, 136 million people lived in trachoma-endemic areas and were at risk of trachoma blindness.
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Trachoma is one of oldest infectious diseases known to humans. It is caused by the bacteria Chlamydia trachomatis, which is transmitted through contact with eye secretions of infected people (shared use of towels and handkerchiefs, contact with fingers, etc.), as well by flies that help spread it.
SECOND MEETING REPORT
DECATUR, GA, USA, 26 JUNE 2016
The number of people at risk from trachoma, the world’s leading infectious cause of blindness, remained stable in 2020 despite disruptions to community-based interventions caused by COVID-19, the World Health Organization (WHO) reported in its Weekly Epidemiological Record.
Yaws forms part of a group of chronic bacterial infections commonly known as the endemic treponematoses. These diseases are caused by spiral bacteria of the genus Treponema, which also includes endemic syphilis (bejel) and pinta. Yaws is the most common of these three infections.
Trachoma, caused by particular serovars of Chlamydia trachomatis, is the leading
infectious cause of blindness. Infection is transmitted within ocular and nasal secretions that are passed from person to person on fingers, fomites (such as clothing) and eye-seeking flies (particularly Musca sorbens)....
Ophthalmic infection is associated with an inflammatory conjunctivitis known as “active trachoma”. Repeated episodes of active trachoma can scar the eyelids. In some individuals this leads to trachomatous trichiasis (TT), in which one or more eyelashes on the upper
eyelid touch the eye. TT is extremely painful. It can be corrected surgically, but, if left untreated, may lead to corneal opacification, resulting in vision impairment and blindness.
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A key component of elimination is to reduce the number
of unmanaged trachomatous trichiasis cases to less than
1 per 1,000 population in affected areas. This will require
not only a large increase in the number of surgeries
performed, but also improvements in the quality of surgery
and in the e...fficiency of surgery provision programs. It also
will require that we make special efforts to reach out to
women and the most marginalized populations, who are
disproportionally affected by trichiasis (TT).
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The WHO estimates that 19 million children aged 15 years or younger are visually impaired. Of these, 1.4 million are irreversibly blind and need visual rehabilitation interventions for full psychological and personal development. The remainder have visual problems that could be prevented or treated.... Identifying children with visual problems early in life so that they can benefit from medical and optical interventions remains a key challenge for most child eye health programmes. Reports from various low-and middle-income countries indicate that the age of children undergoing operation for cataract is frequently too high to achieve maximum benefit.
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Trachoma is an eye infection that for thousands of years caused many people to go blind across all continents. As the result of development and targeted interventions, trachoma is now limited to an estimated 57 countries, often affecting the poorest
populations of the world. Today, more than 2 mill...ion people are either blind or suffer from a very painful disability as the result of trachoma.
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Chagas disease, or American trypanosomiasis, is a condition that causes gradual organ damage. Without treatment, it can be fatal.
This article explains where the T. cruzi parasite is most common and how it can spread. It also outlines the symptoms of Chagas disease and the treatment options avail...able.
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Wiping out Trachoma from Nepal – How Nepal eliminated trachoma as a public health problem
WHO - 2018
In 2018, we are celebrating 20 years of progress in eliminating trachoma, the world’s leading infectious cause of blindness. Set up in 1998 by Pfizer Inc. and the Edna McConnell Clark Foundation, the International Trachoma Initiative (ITI) supports Ministries of Health in over 30 countries around ...the world by making Zithromax® available for use in public health campaigns to eliminate trachoma. The 20th anniversary of our founding gives us an opportunity to reflect on the distance we’ve traveled in fighting this disease, and raise the ambition for accelerating to a world where diseases like trachoma are a distant memory. We have not traveled alone these past 20 years – a broad coalition of actors including NGOs, the World Health Organization (WHO), Ministries of Health, health workers, and community members have made these incredible achievements possible. Our 20th anniversary gives us an opportunity to celebrate this coalition of partners, colleagues, and friends
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La deuxième édition de ce manuel combine et met à jour les éléments contenus dans les trois manuels
antérieurs consacrés à la rotation bilamellaire du tarse, à la méthode de Trabut et à l’évaluation fi nale des
chirurgiens du trichiasis.
Ce manuel est destiné à fournir des informa...tions spécifi ques aux formateurs dans le domaine du trichiasis
trachomateux (TT) à d’autres personnes pour qu’elles puissent pratiquer la chirurgie de l’entropion trichiasis.
Il ne traite pas des autres approches et se divise en deux parties. La première présente les spécifi cités de la
formation des futurs chirurgiens du trichiasis et sert de document de référence. Le formateur peut préférer
que les stagiaires lisent directement le document, utilisent ce manuel comme guide dans le cadre d’une
présentation didactique ou l’exploitent d’autres manières comme aide à la formation. Le manuel contient
des connaissances devant être transmises lors de la formation et une description des compétences devant
être acquises et évaluées pendant la pratique et les sessions de chirurgie. La seconde partie est destinée
UNIQUEMENT aux formateurs des futurs chirurgiens et porte sur la sélection et l’évaluation fi nale des
participants.
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The Fifty-first World Health Assembly adopted resolution WHA51.11 in 1998, which targets the
global elimination of trachoma as a public health problem by 2020 (1). The strategy recommended
to achieve that goal is encapsulated by the acronym “SAFE”, which represents: Surgery for
individuals wi...th trachomatous trichiasis (TT; the late blinding stage of trachoma); and Antibiotics,
Facial cleanliness and Environmental improvement (2). The A, F and E interventions are delivered to
entire districts in which active (inflammatory) trachoma is common in order to treat ocular infection
with Chlamydia trachomatis, the causative organism of trachoma, and sustainably reduce its
transmission.
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En 1998, la Cinquante-et-Unième Assemblée mondiale de la Santé a adopté la résolution
WHA51.11 qui vise l’élimination mondiale du trachome en tant que problème de santé publique
à l’horizon 2020 (1). La stratégie recommandée pour atteindre cet objectif est récapitulée dans
le sig...le « CHANCE » qui signifie CHirurgie pour les personnes atteintes de trichiasis
trachomateux (TT – le dernier stade cécitant du trachome) ; Antibiothérapie, Nettoyage du
visage et Changements Environnementaux (2). Les interventions relatives aux volets A, N et CE
sont menées dans des districts entiers dans lesquels les cas de trachome évolutif
(inflammatoire) sont courants, dans le but de traiter les infections oculaires dues à Chlamydia
trachomatis, l’agent pathogène à l’origine du trachome, et de réduire durablement sa
transmission.
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La quincuagésima primera Asamblea de la Salud Mundial aprobó la resolución WHA51.11 en
1998, que busca la eliminación mundial del tracoma como problema de salud pública para el 2020
(1). La estrategia recomendada para lograr ese objetivo está encapsulada por las siglas "SAFE", que
represent...a: La cirugía para los individuos con triquiasis tracomatosa (TT; la última etapa que causa
ceguera por tracoma); y Antibióticos, Limpieza Facial y Mejoramiento ambiental (2). Las
intervenciones A, F y E se llevan a distritos enteros en los que el tracoma activo (inflamatorio) es
común para tratar la infección ocular causada por Chlamydia trachomatis, el agente causal del
tracoma y reduce de manera sustentable su transmisión.
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