A cure for blindness, in your smartphone | CNN

CNN values your feedback

1. How relevant is this ad to you?
2. Did you encounter any technical issues?
Thank You!
Your effort and contribution in providing this feedback is much appreciated.
Close
Ad Feedback
World
Africa
Americas
Asia
Australia
China
Europe
India
Middle East
United Kingdom
More
Africa Americas Asia Australia China Europe India Middle East United Kingdom
Watch Listen Live TV
My Account
  • Settings
  • Newsletters
  • Topics you follow
  • Sign out
Your CNN account Sign in to your CNN account

My Account
  • Settings
  • Newsletters
  • Topics you follow
  • Sign out
Your CNN account Sign in to your CNN account

Live TV Listen Watch
Edition
US
International
Arabic
Español
Edition
  • US
  • International
  • Arabic
  • Español

Africa
Americas
Asia
Australia
China
Europe
India
Middle East
United Kingdom

Follow CNN
Download the CNN App

  • World
    • Africa
    • Americas
    • Asia
    • Australia
    • China
    • Europe
    • India
    • Middle East
    • United Kingdom
  • US Politics
    • Elections 2026
    • Trump
    • Facts First
    • CNN Polls
    • Redistricting Tracker
    • Epstein Files
  • Business
    • Tech
    • Media
    • Calculators
    • Videos
  • Markets
    • Pre-markets
    • After-Hours
    • Fear & Greed
    • Investing
  • Health
    • Life, But Better
    • Fitness
    • Food
    • Sleep
    • Mindfulness
    • Relationships
  • Entertainment
    • Movies
    • Television
    • Celebrity
  • Tech
    • Innovate
  • Style
    • Arts
    • Design
    • Fashion
    • Architecture
    • Luxury
    • Beauty
    • Video
  • Travel
    • Destinations
    • Food & Drink
    • Stay
    • News
    • Videos
  • Sports
    • Football
    • Tennis
    • Golf
    • Motorsport
    • US Sports
    • Olympics
  • Science
    • Space
    • Life
    • Unearthed
  • Climate
    • Solutions
    • Weather
  • Weather
    • Video
    • Climate
  • Ukraine-Russia War
  • Israel-Hamas War
  • Features
    • As Equals
    • Call to Earth
    • Freedom Project
    • Impact Your World
    • Inside Africa
    • CNN Heroes
  • Watch
    • Live TV
    • Featured
    • CNN Fast
    • Shows A-Z
    • CNN 10
    • CNN TV Schedule
  • Listen
    • All There Is with Anderson Cooper
    • Chasing Life with Dr. Sanjay Gupta
    • The Assignment with Audie Cornish
    • Terms of Service with Clare Duffy
    • CNN 5 Things
    • All CNN Podcasts
  • Games
    • Daily Crossword
    • Jumble Crossword
    • Photo Shuffle
    • Sudoblock
    • Sudoku
    • 5 Things Quiz
  • About CNN
    • Photos
    • Investigations
    • CNN Profiles
    • CNN Leadership
    • CNN Newsletters
    • Work for CNN

Download the CNN App
African Start up
Ad Feedback

A cure for blindness, in your smartphone

Published 6:26 AM EDT, Thu March 31, 2016
Link Copied!
A smartphone app developed by Peek Vision (Portable Eye Examination Kit) has been used in Kenya, Botswana and India to test patients who would otherwise find getting proper eye care difficult.
A smartphone app developed by Peek Vision (Portable Eye Examination Kit) has been used in Kenya, Botswana and India to test patients who would otherwise find getting proper eye care difficult.
Courtesy Peek
There are 39 million blind people in the world, and in low-income countries, 80% of blindness is curable, notes Dr. Andrew Bastawrous, an eye surgeon that helped develop the app.
There are 39 million blind people in the world, and in low-income countries, 80% of blindness is curable, notes Dr. Andrew Bastawrous, an eye surgeon that helped develop the app.
Courtesy Peek
Cataracts and refractive errors are the two most common problems in poorer countries notes Bastawrous, who has trained local examiners in remote areas of Kenya on the new technology.
Cataracts and refractive errors are the two most common problems in poorer countries notes Bastawrous, who has trained local examiners in remote areas of Kenya on the new technology.
Courtesy Peek
21,000 school children were screened in Kenya, with successful results. Another round of screening has just started for another 300,000 students to be tested in Kenya.
21,000 school children were screened in Kenya, with successful results. Another round of screening has just started for another 300,000 students to be tested in Kenya.
Courtesy Peek
Examiners show an "E" to those being tested, and the patient points the way the letter is facing. It's simple, but has had very accurate results, according to a JAMA  Opthamology report.
Examiners show an "E" to those being tested, and the patient points the way the letter is facing. It's simple, but has had very accurate results, according to a JAMA Opthamology report.
Courtesy Peek
For tests done in schools, parents are sent text messages with their child's results and then told if follow-up is needed.
For tests done in schools, parents are sent text messages with their child's results and then told if follow-up is needed.
Courtesy Peek
"We find a local champion," says Dr. Bastawrous, who stresses how important the people on the ground are to his team's mission. Often a village leader is trained in order to reach those in need.
"We find a local champion," says Dr. Bastawrous, who stresses how important the people on the ground are to his team's mission. Often a village leader is trained in order to reach those in need.
Courtesy Peek
Peek's technology helps to detect cataracts, glaucoma, macular degeneration, diabetic retinopathy and signs of nerve disease. It can also pick up other health problems including severe high blood pressure and diabetes. <br />
Peek's technology helps to detect cataracts, glaucoma, macular degeneration, diabetic retinopathy and signs of nerve disease. It can also pick up other health problems including severe high blood pressure and diabetes.
Courtesy Peek

My Account
  • Settings
  • Newsletters
  • Topics you follow
  • Sign out
Your CNN account Sign in to your CNN account

Live TV Listen Watch
  • World
    • Africa
    • Americas
    • Asia
    • Australia
    • China
    • Europe
    • India
    • Middle East
    • United Kingdom
  • US Politics
    • Trump
    • Facts First
    • CNN Polls
    • Elections 2026
    • Redistricting Tracker
    • Epstein Files
  • Business
    • Tech
    • Media
    • Calculators
    • Videos
  • Markets
    • Pre-markets
    • After-Hours
    • Fear & Greed
    • Investing
  • Health
    • Life, But Better
    • Fitness
    • Food
    • Sleep
    • Mindfulness
    • Relationships
  • Entertainment
    • Movies
    • Television
    • Celebrity
  • Tech
    • Innovate
  • Style
    • Arts
    • Design
    • Fashion
    • Architecture
    • Luxury
    • Beauty
    • Video
  • Travel
    • Destinations
    • Food & Drink
    • Stay
    • News
    • Videos
  • Sports
    • Football
    • Tennis
    • Golf
    • Motorsport
    • US Sports
    • Olympics
  • Science
    • Space
    • Life
    • Unearthed
  • Climate
    • Solutions
    • Weather
  • Weather
    • Video
    • Climate
  • Ukraine-Russia War
  • Israel-Hamas War
  • Features
    • As Equals
    • Call to Earth
    • Freedom Project
    • Impact Your World
    • Inside Africa
    • CNN Heroes
  • Watch
    • Live TV
    • Featured
    • CNN Headlines
    • Shows A-Z
    • CNN 10
    • CNN TV Schedule
  • Listen
    • All There Is with Anderson Cooper
    • Chasing Life with Dr. Sanjay Gupta
    • The Assignment with Audie Cornish
    • Terms of Service with Clare Duffy
    • CNN 5 Things
    • All CNN Podcasts
  • Games
    • Daily Crossword
    • Jumble Crossword
    • Photo Shuffle
    • Sudoblock
    • Sudoku
    • 5 Things Quiz
  • About CNN
    • Photos
    • Investigations
    • CNN Profiles
    • CNN Leadership
    • CNN Newsletters
    • Work for CNN

World
Watch Listen Live TV
My Account
  • Settings
  • Newsletters
  • Topics you follow
  • Sign out
Your CNN account Sign in to your CNN account
Follow CNN

Download the CNN app
Download the CNN app

Terms of Use Privacy Policy Ad Choices Accessibility & CC About Newsletters Transcripts Sitemap

© 2026 Cable News Network. A Warner Bros. Discovery Company. All Rights Reserved.
CNN Sans ™ & © 2016 Cable News Network.

Download the CNN app

Scan the QR code to download the CNN app on Google Play.

Scan the QR code to download the CNN app from Google Play.

Download the CNN app

Scan the QR code to download the CNN app from the Apple Store.

Scan the QR code to download the CNN app from the Apple Store.