Southeast Asia Eliminates Trachoma, 2 Billion Protected

For the first time ever, an entire region of 2 billion people lives free from the threat of trachoma, the world's leading infectious cause of blindness.

The World Health Organization recently certified Timor-Leste as having eliminated trachoma as a public health problem. This island nation's victory marks a stunning milestone: all of Southeast Asia is now trachoma-free.

The disease, caused by bacteria that scars the inner eyelid, once threatened millions with permanent blindness. Repeated infections cause eyelashes to turn inward, scratching the eye until vision is lost. It spreads most easily in communities without clean water, sanitation, or access to basic healthcare.

Timor-Leste's journey to elimination required rigorous investigation. Between 2015 and 2017, health workers examined children on Atauro Island, screened patients at eye clinics nationwide, and conducted door-to-door searches. They found no trace of the disease.

In 2025, researchers tested 4,949 samples from children aged 1 to 5 across all 13 municipalities. Not a single sample showed evidence of transmission requiring public health intervention.

"Timor-Leste has once again demonstrated that strong national leadership, high-quality evidence and integrated health services can deliver lasting public health gains," said Dr. Nilesh Buddha of WHO's Southeast Asia Regional Office.

The Ripple Effect

This achievement didn't happen overnight or in isolation. Laos eliminated trachoma in 2017, followed by Nepal in 2018, Myanmar in 2020, and India in 2024. Vietnam, Cambodia, Bangladesh, Sri Lanka, Maldives, Bhutan, and Thailand also reached elimination.

Each country's success built momentum for its neighbors. Health workers shared strategies, surveillance methods, and treatment protocols across borders. They proved that even nations with limited resources could defeat a disease that had caused blindness for thousands of years.

The elimination also shows how addressing basic needs creates lasting health benefits. Improved access to clean water, better sanitation, and integrated health services didn't just stop trachoma. These improvements protect communities from multiple diseases at once.

"The elimination of trachoma from the South-East Asia Region is a significant step towards our global target of eliminating trachoma worldwide by 2030," said WHO Director-General Dr. Tedros Adhanom Ghebreyesus.

Two billion people can now live without fear of this preventable cause of blindness, and the world moves closer to erasing trachoma completely.