The Biggest Cause Of Preventable Blindness Just Won't Go Away

Bugune, wrapped in a shawl on a bench outside her local health clinic, is recovering from eyelid surgery that saved her sight. (Photo: Tom Gardner)
Bugune, wrapped in a shawl on a bench outside her local health clinic, is recovering from eyelid surgery that saved her sight. (Photo: Tom Gardner)

This article is part of HuffPost’s Project Zero campaign, a yearlong series on neglected tropical diseases and efforts to fight them.

TOGA, Ethiopia ― Fresh out of sight-saving eyelid surgery, Bugune sat fragile and exhausted on a bench in the shade, her son Birhane by her side.

“I was in such pain,” said the mother of six, wrapped in a shawl and with a thick bandage across her face, as she recalled the agony of recent months. Since 2015, her eyelashes had been curling into her eye, rubbing and scratching against the cornea until it was too painful to lift the lids to see.

“I had tears falling from my eyes, but it hurt too much to wipe them. I had a headache all the time, so I couldn’t do anything. I couldn’t go to the market; I couldn’t go to weddings.”

Ewnetu Melesse, an ophthalmic nurse, performs sight-saving eyelid surgery on Bugune, carefully removing the ingrowing eyelashes caused by trachiasis, the advanced form of trachoma. (Photo: Tom Gardner)
Ewnetu Melesse, an ophthalmic nurse, performs sight-saving eyelid surgery on Bugune, carefully removing the ingrowing eyelashes caused by trachiasis, the advanced form of trachoma. (Photo: Tom Gardner)

Bugune had been suffering from trachoma, a bacterial eye infection that is the world’s leading cause of preventable blindness but that has long been neglected especially in Ethiopia, which is home to the largest population of sufferers by far.

The country is today the last major frontier in the global battle against the disease, but, despite recent efforts, public understanding of the disease and its causes remains poor — pushing the goal of elimination just beyond reach.

“I thought I was never going to see again,” Bugane said of the agonizing uncertainty of previous weeks. “I was so scared.”

Trachoma has been around for millennia. Traces of it have been found in the eyelids of Egyptian mummies, and it was once common across much of Europe and America.

But today the disease is almost entirely confined to the world’s poorest countries, in particular the hot, arid regions of sub-Saharan Africa. Women, as primary caregivers, suffer disproportionately because children are more likely to be infected. And women are four times more likely than men to need surgery.

“It is a disease of poverty,” explained Teshome Gebre, the International Trachoma Initiative’s regional director for Africa, in his office in the Ethiopian capital, Addis Ababa. “You don’t find it in the developed world or even the developing world.”

Of the 42 countries where trachoma is still present, Ethiopia has more than 30 percent of Africa’s already disproportionate burden. About 75 million Ethiopians three-quarters of the population live in trachoma-endemic areas, while the backlog of people urgently needing surgery for trachiasis, the advanced form of the disease, last year reached 693,000, the largest number of any country in the world.

In Bugune’s village of Toga, trachoma is rampant, but awareness of the disease is still lacking. (Photo: Tom Gardner)
In Bugune’s village of Toga, trachoma is rampant, but awareness of the disease is still lacking. (Photo: Tom Gardner)

Bugune’s village of Toga is in the central region of Oromia, about four miles from the provincial boomtown of Shashamane, where the disease is typically much less common.

“The further you go from the main road, the more prevalent trachoma is,” explained Oumer Shafi Abdurahman, former director of Ethiopia’s Neglected Tropical Diseases program and now project manager for Stronger-SAFE, a Wellcome Trust-funded initiative led by the London School of Hygiene & Tropical Medicine that aims to increase understanding of the disease.

In some villages in the bushland surrounding Shashamane, where Oumer works, as many as 9 out of 10 children can be infected at any one time.

Yet trachoma is easily treatable with antibiotics and simple surgery, and the campaign to eliminate it by 2020, the World Health Organization’s global target, should be attainable, some experts believe.

Since 2012, Ethiopia has made significant strides, in particular by pioneering the Global Trachoma Mapping Project, the largest survey of an infectious disease, by using mobile phones and GPS signals to collate the country’s first national trachoma database.

The survey found that more than 90 percent of districts in Ethiopia have trachoma at critical levels, a revelation that helped spur the government and its donors to taking more decisive action.

Related Coverage

A Heartbreaking Look At Leprosy In 2017

Inside A Modern-Day Plague Outbreak

Meet The Americans Who Live With Open Sewers In Their Yard

In 2014, the federal minister of health announced a $1.7 million “fast-track initiative” to clear the then-estimated backlog of more than 800,000 people in need of surgery by the end of 2016, in part by training specialists to perform surgery at clinics across the country.

With the help of organizations like the Fred Hollows Foundation, it has also embarked upon a vast program of drug distribution, doling out antibiotics to entire communities — every man, woman and child — in order to curb transmission.

Ethiopia’s health extension program has advanced rapidly in a decade, with some 6,000 clinics and 48,000 extension workers nationwide making it possible to deliver doses of antibiotics to the most remote parts of the country.

In Oromia alone, nearly 7 million doses of antibiotics were delivered in 2016 —reaching 94 percent of a targeted population — and a similar number have been reached this year.

“Even though it is a very poor country, the system has worked” to deliver a mass antibiotic program, Oumer said. “And now that surgery is freely available, almost everywhere, there’s no reason for someone to go blind because of trachoma.”

For a country that 15 years ago had no national program to combat the disease and very little commitment from the central government, this is a remarkable turnaround.

The question now is whether Ethiopia can join the ranks of other countries that have recently eliminated trachoma. Yet many are doubtful because, despite improvements, progress has not been as swift as they had hoped.

Love HuffPost? Become a founding member of HuffPost Plus today.

Bugune’s husband, Araba, outside the family home in Toga, a small village in Ethiopia’s Oromia region. Araba blames smoke for his wife's eye problems. (Photo: Tom Gardner)
Bugune’s husband, Araba, outside the family home in Toga, a small village in Ethiopia’s Oromia region. Araba blames smoke for his wife's eye problems. (Photo: Tom Gardner)

Bugune and her family knew little about trachoma, despite the government’s public awareness campaign. In their circular, thatched-roof homestead less than a mile from the health center, Bugune’s husband, Araba, would remove the eyelashes manually, one by one. He urged her to visit the doctor, but for months she refused.

Neither knew of the strong link between transmission and poor hygiene: Bugane said she thought her eye problems were caused by smoke in the house, and her husband agreed.

“I don’t need to learn this,” he said. “When there is smoke in the house people get trachoma.”

Their neighbors were similarly uncertain. Their son Birhane suggested that light reflected from car windows might cause eye problems.

But it is more than just lack of public awareness that is slowing progress.

“Compared to the scale of the investment, the results have not been as expected,” Oumer admitted. “In the Amhara region of Ethiopia, which has had mass treatment for over seven years, it simply should have gone by now.”

One reason, he thinks, is that trachoma’s biology is still poorly understood by the scientific community.

“What we don’t know is probably more than we do know.”

Muluadam Abraham, an ophthalmic nurse, examines a small child for signs of trachoma, finding white spots on the inside of the eyelid that indicate infection. (Photo: Tom Gardner)
Muluadam Abraham, an ophthalmic nurse, examines a small child for signs of trachoma, finding white spots on the inside of the eyelid that indicate infection. (Photo: Tom Gardner)

His Stronger-SAFE team is trying to work out precisely what lies behind transmission so that prevention methods can become more effective. The Shashamane-based researchers are examining local behavior, including water use, overcrowding and hygiene standards in affected villages, to try to pinpoint the causes.

Some experts, for example, wonder whether its extreme prevalence in Ethiopia is a result of cultural factors, such as washing habits or diet.

Others think that only economic development, particularly improved water access and sanitation, can wipe out the disease.

Oumer disagrees. “There’s no reason why it shouldn’t go here. There are poor countries with no trachoma. There must be something we are doing wrong.”

In November 2012, the WHO validated Oman as having eliminated trachoma, while China, Gambia, Ghana, Iran, Morocco and Myanmar have also claimed victory in recent years. (It was considered eliminated in the U.S. by the mid-20th century.)

Oumer and others doubt Ethiopia can meet the 2020 target, though he thinks that elimination of trichiasis the advanced form of the disease that caused Bugune’s eyelashes to grow inward might still be within reach.

Bugune, meanwhile, is fatalistic.

She is not, after all, the only one in her family to have suffered. Her brother’s wife recently had successful surgery on her right eye, but now the other eye is infected.

“I think it will come back for me, too,” Bugune said. “But if I go blind, my husband will guide me. It is his duty.”

Bugune, still under anaesthetic, lies on the operating table after receiving the simple and cheap eyelid surgery that saved her sight. (Photo: Tom Gardner)
Bugune, still under anaesthetic, lies on the operating table after receiving the simple and cheap eyelid surgery that saved her sight. (Photo: Tom Gardner)

This series is supported, in part, by funding from the Bill & Melinda Gates Foundation. All content is editorially independent, with no influence or input from the foundation.

Also on HuffPost

Lymphatic Filariasis

Lymphatic filariasis, more commonly known as elephantiasis, is a <a href="https://www.cdc.gov/parasites/lymphaticfilariasis/">leading cause of disability worldwide</a>, according to the U.S. Centers for Disease Control and Prevention. It affects <a href="https://www.cdc.gov/parasites/lymphaticfilariasis/gen_info/faqs.html">over 120 million people</a>&nbsp;globally and can cause severe swelling of body parts, including the legs and scrotum. While people are usually infected in childhood, the painful, disfiguring symptoms of the disease only&nbsp;<a href="http://www.who.int/mediacentre/factsheets/fs102/en/" target="_blank">show up later in life</a>.

Onchocerciasis

Onchocerciasis, commonly known as river blindness, is an eye and skin disease that can cause severe itching and visual impairment ― including blindness. Around <a href="http://www.who.int/mediacentre/factsheets/fs095/en/" target="_blank">18 million people are infected</a>. Of those, over 6.5 million suffer from severe itching, and 270,000 are blind. The disease is caused by a parasitic worm, transmitted through bites from infected blackflies. The worm can live for up to 14 years in the human body, and each adult female worm can be more than 1.5 feet long.

Chagas

Chagas disease is a <a href="http://www.who.int/mediacentre/factsheets/fs340/en/">potentially life-threatening illness</a>. In the first months after infection, symptoms are mild, including skin lesions and fever. But in its second, chronic phase, up to 1&nbsp;in 3&nbsp;patients develop cardiac disorders, which can lead to heart failure and sudden death. The disease is transmitted to humans by &ldquo;kissing bugs,&rdquo; which live in the walls or roof cracks of poorly constructed homes in rural areas, according to the World Health Organization. Of the estimated 6 million to 7 million people affected worldwide, most live in Latin America, but the disease has also spread to the United States. Around&nbsp;300,000 people in the U.S.&nbsp;have Chagas disease, according to the <a href="http://interactives.dallasnews.com/2015/tropical-diseases/">Dallas Morning News</a>.

Dengue

Dengue is a <a href="http://www.who.int/mediacentre/factsheets/fs117/en/" target="_blank">flu-like illness that can sometimes be lethal</a>.&nbsp;In 2015, more than 2 million cases of dengue were reported in the Americas. In some Asian and Latin American countries, &ldquo;severe&rdquo; dengue is a leading cause of serious illness and death among children.&nbsp;Dengue is spread by the Aedes aegypti mosquitoes, the same type of insect that transmits Zika. To reduce the risk of bites, WHO recommends&nbsp;covering water containers, using insecticide, having window screens and wearing long sleeves.

Human African Trypanosomiasis

Human African trypanosomiasis, commonly known as <a href="http://www.who.int/mediacentre/factsheets/fs259/en/" target="_blank">sleeping sickness</a>, is a chronic infection that affects the central nervous system.&nbsp;People can be infected for years without signs, but in the second stage, patients can suffer behavior changes,&nbsp;hallucinations and even&nbsp;<a href="http://www.huffingtonpost.com/entry/what-is-sleeping-sickness_us_5824c886e4b02a0512938c60">slip into a coma and die</a>. Many people affected live in <a href="http://www.who.int/mediacentre/factsheets/fs259/en/" target="_blank">remote, rural areas that don&rsquo;t have easy access</a> to quality health services. This makes diagnosis and treatment more difficult. WHO has identified sleeping sickness as a disease that could be <a href="https://www.crowdrise.com/ProjectZero" target="_blank" data-beacon="{&quot;p&quot;:{&quot;mnid&quot;:&quot;entry_text&quot;,&quot;lnid&quot;:&quot;citation&quot;,&quot;mpid&quot;:9,&quot;plid&quot;:&quot;http://apps.who.int/iris/bitstream/10665/70809/1/WHO_HTM_NTD_2012.1_eng.pdf&quot;}}">eliminated worldwide by 2020</a>&nbsp;if the right resources are dedicated to it.

Leishmaniasis

There are several forms of <a href="http://www.who.int/mediacentre/factsheets/fs375/en/" target="_blank">leishmaniasis</a>,&nbsp;including visceral, which can be fatal, with symptoms including fever and weight loss; and cutaneous, the most common form, which&nbsp;causes skin lesions, leaving lifelong scars and disability. The disease, spread by sandflies, affects some of the poorest people on earth, according to WHO, and is associated with malnutrition and poor housing. Around 1 million new cases occur annually, causing 20,000 to 30,000 deaths. Leishmaniasis is climate-sensitive, affected by changes in rainfall, temperature and humidity ― which means it could be exacerbated by global warming.

Trachoma

Trachoma is an eye disease, which if&nbsp;<a href="http://www.who.int/mediacentre/factsheets/fs382/en/">untreated, can cause irreversible blindness</a>. It causes visual impairment or blindness in 1.9 million people, per WHO. The disease is present in poor, rural areas of 42 countries in Africa, Latin America, Asia and the Middle East ― but Africa is the most affected.

Rabies

Rabies is <a href="http://www.who.int/mediacentre/factsheets/fs099/en/index.html">almost always fatal</a> once symptoms show up. Initial symptoms are fever and tingling around the wound. As the virus spreads, people with &ldquo;furious&rdquo; rabies become hyperactive and die by cardiac arrest; people with &ldquo;paralytic&rdquo; rabies become paralyzed, fall into a coma and die. Transmitted by pet dogs, rabies&nbsp;causes tens of thousands of deaths every year. The disease is present on all continents except Antarctica ― but more than 95 percent of human deaths due to it occur in Asia and Africa. It&nbsp;is a neglected disease primarily affecting poor populations, where vaccines are not readily available.

Leprosy

Leprosy is a chronic disease, which when untreated can <a href="http://www.who.int/mediacentre/factsheets/fs101/en/">cause permanent damage to the skin</a>, nerves, limbs and eyes.&nbsp;There were 176,176 cases at the end of 2015, according to WHO. While the stigma associated with the disease means people are less likely to seek treatment, leprosy is curable, and treatment early on can avoid disability. Leprosy was eliminated as a public health problem in 2000 ― meaning there is now less than one case for every 10,000 people worldwide.

Schistosomiasis

Schistosomiasis is&nbsp;a chronic disease that&nbsp;causes gradual damage to internal organs.&nbsp;Symptoms include&nbsp;<a href="http://www.who.int/mediacentre/factsheets/fs115/en/" target="_blank">blood in urine</a>, and in severe cases, kidney or liver failure, and even bladder cancer.&nbsp;Around 20,000 people die from it each year.&nbsp;Transmitted by parasites in infested water, the disease largely affects poor, rural communities in Africa that lack access to safe drinking water and sanitation. &ldquo;[People]&nbsp;get it as kids bathing in water,&rdquo; Sandrine Martin, a staff member for the nonprofit&nbsp;<a href="http://www.malariaconsortium.org/pages/who_we_are.htm" target="_blank" data-saferedirecturl="https://www.google.com/url?hl=en&amp;q=http://www.malariaconsortium.org/pages/who_we_are.htm&amp;source=gmail&amp;ust=1480609103751000&amp;usg=AFQjCNG03VPF1XL5zli4__XAjDWpDmBOvw">Malaria Consortium</a>&nbsp;in Mozambique, told HuffPost. &ldquo;But the symptoms, like blood in the urine, only develop later ― and then people tend to hide it because it&rsquo;s in the genital area.&rdquo;

Chikungunya

Chikungunya is a disease that <a href="http://www.who.int/mediacentre/factsheets/fs327/en/">causes fever and severe joint pain</a>, according to WHO. While it is rarely fatal, it can be debilitating. Since 2004, it has infected&nbsp;<a href="http://www.paho.org/hq/index.php?option=com_content&amp;view=article&amp;id=8303&amp;Itemid=40023&amp;lang=en">more than 2 million people</a>&nbsp;in Asia and Africa.&nbsp;There is no cure for the disease, which is transmitted to humans by infected mosquitoes.&nbsp;The name comes from a word in the <a href="https://www.britannica.com/science/chikungunya-fever" target="_blank">Kimakonde language</a>,&nbsp;spoken in some areas of Mozambique and Tanzania,&nbsp;that means&nbsp;&ldquo;to become contorted&rdquo; ― a nod to the hunched-over position of people who are affected with joint pain.

Echinoccosis

<a href="http://www.who.int/mediacentre/factsheets/fs377/en/index.html">Echinoccosis</a> is a parasitic disease that leads to cysts in the liver and lungs. While it can be life-threatening if untreated, even people who receive treatment often have a reduced quality of life, according to WHO. Found in every continent except Antarctica, the disease is acquired by consuming food or water contaminated with tapeworm eggs, or through direct contact with animals who carry it, such as domestic dogs or sheep.

Foodborne Trematodiases

Foodborne trematodiases can cause&nbsp;<a href="http://www.who.int/mediacentre/factsheets/fs368/en/">severe liver and lung disease</a>, and on rare occasions death. Most prevalent in East Asia and South America, the disease&nbsp;is caused by worms that people get by eating raw fish, shellfish or vegetables that have been infected with larvae. While early, light infections can be asymptomatic, chronic infections are severe.More than 56 million people were infected with foodborne trematodes, and over 7,000 people died in 2005, the year of WHO&rsquo;s most recent global estimate.

Buruli Ulcer

Buruli ulcer is a <a href="http://www.who.int/mediacentre/factsheets/fs199/en/" target="_blank">skin infection</a>&nbsp;caused by bacteria that often starts as a painless swelling, but without treatment, it can lead to permanent disfigurement and disability. In 2014, 2,200 new cases were reported, with most patients under age 15. The exact mode of transmission is still unknown. The majority of cases, if detected early enough, can be cured with antibiotics.

Yaws

Yaws is a chronic,&nbsp;<a href="http://www.who.int/mediacentre/factsheets/fs316/en/">disfiguring childhood infectious disease</a>.&nbsp;Affecting skin, bone and cartilage, the symptoms show up weeks to months after infection and include yellow lesions and bone swelling. More than 250,000 cases of yaws were reported from 2010 to 2013, WHO told HuffPost.&nbsp;A&nbsp;lack of clean water and soap for bathing contributes to its spread. Only 13 countries are known to still have cases of yaws, including <a href="https://www.ncbi.nlm.nih.gov/pubmed/26001576" target="_blank">Ghana, Papua New Guinea and Solomon Islands</a>.

Soil-Transmitted Helminth

Soil-transmitted helminth infections are among <a href="http://www.who.int/mediacentre/factsheets/fs366/en/" target="_blank">the most common infections</a> worldwide and affect the poorest communities. People are infected by worms transmitted by human feces contaminating soil in areas with poor sanitation. People with light infections usually have no symptoms. Heavier infections can cause diarrhea, abdominal pain, general weakness and impaired cognitive development. Depending on the number of worms, it can lead to death. Up to 2 billion people are infected worldwide, according to WHO. But because infections can be light, not all patients suffer, WHO&rsquo;s Ashok Moo told HuffPost.

Taeniasis

Taeniasis is an <a href="http://www.who.int/mediacentre/factsheets/fs376/en/index.html" target="_blank">intestinal infection caused by tapeworms</a>, which mostly causes mild symptoms, such as abdominal pain, nausea, diarrhea or constipation. But if larvae infect the brain, causing neurocysticercosis, the disease can cause epileptic seizures and can be fatal. People get it by eating raw or undercooked infected pork. The ingested tapeworm eggs develop into larvae and migrate through the body. Taeniasis is <a href="https://www.cdc.gov/parasites/taeniasis/gen_info/faqs.html">underreported</a> worldwide because it is hard to diagnose in areas with little access to health services, according to the CDC.

Guinea Worm

Guinea worm is a <a href="http://www.who.int/mediacentre/factsheets/fs359/en/index.html" target="_blank">crippling disease</a>&nbsp;that it is close to being eradicated. There were only 22 human cases reported in 2015, according to WHO ― down from around 3.5 million cases in 21 countries in the mid-1980s.&nbsp;The&nbsp;disease is usually transmitted when people with limited access to quality drinking water swallow stagnant water contaminated with parasites. About a year after infection, a painful blister forms ―&nbsp;most of the time on the lower leg ―&nbsp;and one or more worms emerge, along with a burning sensation. It is rarely fatal, but can debilitate infected people for weeks. The Carter Center, founded by former President Jimmy Carter and his wife, has been instrumental in efforts&nbsp;to eradicate the disease.

This article originally appeared on HuffPost.