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


Give the

Gift of Sight.


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.

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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. 




people affected due to Refractive Errors.



million visually impaired

43%  of visual impairment is 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 areas 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 slides the tube to see the target clearly. The device has a simple scale that then gives the approximate refractive error.

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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



Donate and give the gift of sight.