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Give the Gift of Sight.

We combat the lack of access to affordable tools for Refractive Error screening in low resource areas


Clear Vision

The Folding Foropter is a novel device developed by the LVPEI Center for Innovation, Hyderabad to combat the lack of access to tools for Refractive Error screening in low resource areas. This device is eco-friendly, low-cost, high quality and easy to use which allows anyone to build their own, just by following the instructions.

To know about our other projects, click here.

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The Problem

Uncorrected Refractive Errors are the largest cause of avoidable blindness in the developing world. Visual impairment can have immediate and long-term consequences in children and adults, such as lost educational and employment opportunities, and impaired quality of life. Refractive errors can simply be diagnosed, measured, and corrected with the aid of optical corrective approaches and devices such as spectacles and contact lenses or by refractive surgical procedures. 



billion affected 

Due to refractive errors.



million visually impaired

43%  of visual impairments are due to uncorrected refractive errors.



in low-resource areas

Current data suggests that more than 90% of people with Uncorrected Refractive Errors worldwide reside in rural and low-income countries.


Our Solution

Inspired by the Foldscope by Dr. Manu Prakash, the Folding Foropter is a simple paper cut out that folds around two lenses, forming two tubes that slide in and out of each other. The user then needs to look at a fixed target through the device and slide the tube to see the target clearly. The device has a simple scale that then gives the approximate refractive power.

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january 2017

They (Folding Foropters) were fantastic and really helped us to identify the appropriate lens strength for our patients.

The gift of sight opens an entirely new realm in which to experience life. I want to thank you and your team for all you’ve done to create the Folding Foropter.

Volunteer team from North Carolina / Peru




Get Started!


make your Folding Foropter

Just follow the instructions and build your own device in just minutes!


use your Folding Foropter

Use your deivce to know your approximate refractive power instantly!


Join Us!

Connect with us to partner, know more and order your device.


Donate and give the gift of sight. For larger donations or to become a contributor, please click the second button.

Photos from Coffee Table Book.jpg