Mirjahan Choudhury receives a free eye screening at the Rangia Post office in India.
Subhamoy Bhattacharjee for NPR
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Subhamoy Bhattacharjee for NPR
In recent years, Sangita Kalita has watched as her mother and mother-in-law go to the local temple — called a naamghar — in Assam State, India and leave disappointed.
Each visit, their hope was to read the sacred Hindu texts, "but due to vision issues, they faced a lot of problems recognizing the small letters in the book," explains Kalita.
According to the World Health Organization, they are among more than 800 million people worldwide who suffer from presbyopia — age-related loss of close-up vision — for which basic reading glasses would help. Yet, according to WHO, in many lower-income countries, fewer than one in four people who need eyeglasses have them.
Kalita says for her family, getting reading glasses was simply too complicated and expensive. While in many high-income countries, readers are available in all kinds of stores, in lower-resourced settings, getting a pair often requires a trip to the hospital or a specialized optical shop, usually in a big city.
Kalita is trying to change that.
In northeastern India, she's part of a team testing a new effort to address the challenge of getting vision care in remote areas. The idea involves the country's massive network of post offices.
A quick eye test in an unusual place
Kalita used to be a school teacher. Now, she spends her days at a red and white kiosk that's against the bright white walls of the post office in the town of Rangiya.
From that vantage point, she watches as customers come in. Some are there to mail packages while others use a wide variety of services offered in Indian post offices, such as opening and accessing small savings accounts. Kalita notices how they go about their task.
"A lot of old people come in who are not even able to fill out the deposit form," she says.
When she sees them struggling, that's when she steps in. She approaches, asking if they'd like a quick eye test. If so, she invites them to the kiosk where the words "get a free eye-screening and high-quality eye glasses here" are written at the top. After they work through a few simple tests in a spiral bound book, Kalita can tell if they need reading glasses. And if they do, they walk out with a free pair.
Sangita Kalita, an eye screening volunteer, helps clients at the Rangia Post office.
Subhamoy Bhattacharjee for NPR
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Subhamoy Bhattacharjee for NPR
The idea for this model came from a partnership between WHO and the Universal Postal Union or UPU. "With an estimated 680,000 post offices operating globally, postal services offer a unique opportunity to reach remote and underserved areas," the report explains.
The plan was to tap into the world's largest postal network — India Post has over 150,000 offices.
"The whole thinking was that we look at an established channel, which has a reach, which has infrastructure, which has people," says Shweta Verma, deputy director for programs and operations at VisionSpring India.
Under a pilot program run by VisionSpring, Verma says, between December 2025 and May 2026, more than 5,000 people were screened in five post offices in Assam State.
Verma says 80% of those who received glasses were first time wearers. That "tells us that there was no screening or program for eye health" in the area prior to the pilot, she says.
Convincing skeptics
Getting reading glasses can make a big difference for a person's income, in addition to making every day tasks easier. That's especially true in Assam State, a region known for tea production.
A study published in The Lancet Global Health found that reading glasses increased tea pickers' productivity by almost 22% since they need to see which leaves to pick and are paid based on the quality of their harvest.
Over the course of the post office pilot, Verma says, they've had to earn the suppo
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