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The TT Tracker: improving the quality of trachoma eye care using a mobile app

Digital technology has become an essential tool in the fight against trachoma, one of the world’s most ancient neglected tropical diseases. Our TT Tracker app ensures that patients undergoing trachoma surgery get the aftercare treatment they need.

The surgery to treat trachoma itself is straightforward, taking around 20 minutes. But, when it comes to bringing patients back for check-ups – which are critical to ensure that the surgery has been successful, and that they are no longer at risk of going blind – the process can be challenging.

How can a mobile phone make a difference?

The TT Tracker, a smartphone-based app, helps health workers to collect and analyse information about patients’ operations and how they went. It helps them locate those who are in need of follow-up visits, and gives them an up-to-date view of TT work and outcomes.

The only way to treat trachomatous trichiasis (TT), the advanced form of trachoma, is to operate. However, those most affected by the disease often live in remote places, miles away from the nearest health clinic. Returning to visit the surgeon could mean a long journey, and in nomadic communities, families might have moved further away between appointments. This can make it hard to monitor patient recovery and assess any additional care needs.

Sightsavers developed the TT Tracker in response to a World Health Organization (WHO) convening that highlighted this issue among others in 2015.

A lady's eye is examined with a torch

What is 'TT'?

The advanced stage of trachoma is called trachomatous trichiasis (TT). This causes the eyelashes to turn inwards and scrape the eyeball. Not only is this incredibly painful, it can lead to irreversible blindness.

More about trachoma
21,000
treatment journeys monitored
137 million
people are at risk of going blind from trachoma
five billion
people have access to mobile phones

How does the TT Tracker work?

Patients’ data is collected when they first register for surgery, and then throughout their treatment journey. This includes their appointment on the day of their surgery and three follow-up appointments.

Based on the information collected, the TT Tracker sends online and email updates to staff, telling them which patients need to be followed up with and when. Even if different stages of a patient’s treatment journey happen in different locations with different medical teams, the surgeon in charge of their care has easy access to all the information they need through the app.

As well as supporting individual patients, the TT Tracker helps programmes understand how well surgeons are performing. And it gathers information on patient demographics, the number of patients and surgeries, the status of follow-up appointments and surgical outcomes, which is all updated daily and stored securely. Because the data is collected in a centralised system, country governments can use it to inform future work – most importantly, to support the goal of trachoma elimination.

We are using the TT Tracker in five countries and are working to bring its benefits to more parts of the world. Our goal is to roll out similar apps for surgeries that treat other widespread health conditions, such as hydrocele caused by the neglected tropical disease lymphatic filariasis, as well as cataracts. More in-depth resources on the app are available here.

Zakari works with the surgeon to record patient data on the TT Tracker

Ensuring advanced trachoma surgeries are on track in Benin

Zakari is part of our vital mobile eye health team who carried out the first sight-saving TT surgeries in Borgou, a remote area in northern Benin, under the Accelerate programme. Find out how Zakari and others are using the app to save people's sight.

Read their stories

Find out more about our work

Sightsavers and fighting disease
An eye surgeon examines a woman's eyes to check for signs of trachoma.
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WHO: 74% reduction in people needing advanced trachoma surgery

People requiring surgery treat severe cases of trachoma, the world’s leading cause of infectious blindness, have declined from 7.6 million in 2002 to 2 million in 2020, according to World Health Organization data.

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