An estimated 253 million people live with vision impairment: 36 million are blind and 217 million have moderate to severe vision impairment. 81% of people who are blind or have moderate or severe vision impairment are aged 50 years and above
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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The aim of this pamphlet is to inform parents and guardians of supports and services available for children and young people who are blind or have a visual impairment.
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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At present at least 2.2 billion people around the world have a vision impairment, of whom at least 1 billion have a vision impairment that could have been prevented or is yet to be addressed. The world faces considerable challenges in terms of eye care, including inequalities in the coverage and qua...lity of prevention, treatment and rehabilitation services; a shortage of trained eye care service providers; and poor integration of eye care services into health systems, among others. The World report on vision aims to address these challenges and galvanize action.
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The WHO Vision and eye screening implementation handbook (VESIH) offers a step-by-step guidance for conducting vision and eye screenings in community and primary care settings. The evidence-based interventions are drawn from the WHO Package of eye care interventions and developed with a focus on del...ivering screenings easily, safely, and effectively in low- and low–intermediate-resource settings. The early identification through screenings ensures timely treatments and management to avoid vision impairment in high-risk populations, including newborns, pre-school children, school children, and older adults.
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Vitamin A deficiency is a risk factor for blindness and for mortality from measles and diarrhoea in children aged 6–59 months. We aimed to estimate trends in the prevalence of vitamin A defi ciency between 1991 and 2013 and its mortality burden in low-income and middle-income countries.
The IAPB School Eye Health Workgroup has released these guidelines to help deliver standardised comprehensive eye health services to more than 700 million children attending schools around the world. These guidelines direct the planning and implementation of school eye health initiatives for policym...akers, health authorities, and related professionals. They emphasize effective, efficient, and sustainable programs, particularly in low- and middle-income countries. Monitoring and evaluation should be planned from the outset, and existing local guidelines should be integrated.
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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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Onchocerciasis used to be an important public health problem in Africa, with over 37 million people infected and millions suffering from debilitating skin disease, terrible itching, impaired vision and
blindness. But the epidemiological situation has improved dramatically over the last two decades.... Community directed treatment with ivermectin has effectively brought the disease under control in most endemic areas where onchocerciasis is no longer a public health risk.
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Globally each year, millions of people suffer illness or lose their lives because the vaccines, medicines and diagnostic tests that they need are either unavailable or unaffordable – and this lack of access to medicine is acute in low- and middle-in-
come countries (LMICs). While the COVID-19 pan...demic laid this inequity bare, it also saw the pharmaceutical industry develop and bring new vaccines and treat- ments to market at unprecedented speed. As the world emerges from the worst
of this crisis, pharmaceutical companies are now at an important juncture, where lessons learned from the pandemic can prove pivotal in finding solutions to bridge long-standing gaps in access to medicine in LMICs.
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A guide for community health workers, rehabilitation workers, and families.
This manual covers identifying primary and secondary disabilities, developing skills for daily living, and working through behavior problems. The new 2018 edition features new topics, including mental and developmental di...sabilities, microcephaly and Zika, causes of birth defects and childhood disability, epilepsy and seizures, hearing loss and vision problems, HIV, leprosy, and more, and has updated information on polio, cerebral palsy, juvenile arthritis, muscular dystrophy, and medications.
Readers will find instructions on how to build six different wheelchairs using local resources; useful therapy techniques, such as making fun and educational toys; ideas for improving playground accessibility for all children; and low-cost rehabilitation aids and adaptations for home and community.
You can download chapter 4 for free. The complete book is available at Hesperian Book STore
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Hypertension is referred to as a “silent killer”. Most people with hypertension are unaware of their condition as in most cases, they experience no warning signs or symptoms hence they are not identified or treated. Hypertention is associated with a number of conditions, disability, and causes o...f death. These include: strokes; myocardial infarction; end-stage renal disease; congestive heart failure; peripheral vascular disease and blindness. According to Stats SA, in 2017, hypertensive disorders resulted in 19 900 deaths with a further 44 357 deaths associated with cerebrovascular diseases and other heart diseases. This means around 30% of all deaths in 2017 were associated with increased blood pressure.
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