The $1 Spectacle

This is not breaking news, simply an amazing story unfolding right under our noses that should be recognized for its potential impact. During TEDGlobal 2009, Josh Silver delivered a powerful presentation outlining his goal to produce Adspec eyeglasses for only $1 a pair to solve a massive world health issue, eye care in the third world. His goal; provide cheap, durable, corrective lenses to more than one billion who need glasses in the developing world.

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Inspiration struck Josh Silver in 1985, while leading a group of researchers in the Department of Atomic and Laser Physics at the University of Oxford, he realized that certain liquids could be used to change a lenses curvature without impacting the refraction of light (short biography). He continued to work on the liquid-focusing glasses until he had a working prototype in 1996, at which point he founded Adaptive Eyecare to further develop the invention with grant money provided by the UK’s Department for International Development. In 2002 Josh Silver became the director of the Centre for Vision in the Developing World, where he is currently perfecting his glasses and conducting small disbursements.

Adspec Design

The current design uses a duel membrane system, where a liquid core is sand-witched between two movable membranes which expand and contracts based on the adjustable oil levels. The silicon oil is inserted into each lens using a syringe specifically designed for the glasses. Adding oil creates an outward curvature which helps with long-sightedness, while removing the oil creates an inward curvature and helps with short-sightedness. Once dialed to the users strength preference the syringe is removed, and can be stored for later adjustment of the lens’ correction. The entire system costs about $19 to manufacture and deliver, which is substantially less than most alternatives, especially without the added cost of an eye exam. Yet, Josh Silver aims to reduce the cost to $1 by 2020, in order to make his invention affordable for even the impoverished.


Poor eyesight poses a sometimes insurmountable barrier in third world countries, where the vast majority of the population does not have access to eye care or corrective lenses. Like many social health problems, poor eye-care is one that has a devastating impact throughout society. The impact starts on the lowest levels, Josh Silver states that about 60% of children require some sort of eye correction, while most corrections at a young age would be minor for some not having access to glasses can be to much, and as a result struggle or entirly fail to complete a basic education, which is a major quality of life indicator. Further, the deterioration of eyesight with age reduces the efficiency of many older workers, and reduces the value of their experience.


Josh Silver has already seen an impact from the early disbursement of his glasses. He fondly retells the story of Henry Adjei-Mensah. A 35 year old tailor in Ghana, Adjei-Mensah fell into poverty after a forced retirement due to his deteriorating eye sight, he could no longer tread a needle or operate a sewing machine. Selected as a recipient for a trial run of the adjustable-focus glasses, his face lit up as his world came back into view. He immediately pulled a sewing needle and thread from his pocket and successfully slipped the threat through the eye of the needle. Now, Adjei-Mensah has rekindled his career and is able to support himself and his family.

Currently the Centre for Vision in the Developing World has distributed over 30,000 pairs of the liquid-focus glasses in over twenty countries, covering South America, Africa, and Asia. Josh Silver’s goal is to distribute one billion pairs by 2020, dubbed Global Vision 2020. The potential of this technology is huge, if the cost can be brought down and manufacturing ramped up this invention could have one of the largest impacts on vision in third world countries.


SeeYourImpact is not affiliated with Josh Silver or the Centre for Vision in the Developing World, however we harbor a great respect for their work. If you are interested in helping a life altering cause through SeeYourImpact the Blind Peoples Association provides top notch care for the visually impaired, and a small donation can provide braille education or a low vision kit and change a life.

Changing attitudes, changing lives

After great visits to the Blind People’s Association in Ahmedabad, and Padma Industrial School in Tamil Nadu, I recently visited another SeeYourImpact partner charity, Amar Jyoti, based in Delhi.

SeeYourImpact is a charity network that cost-effectively enables donors to give small, life changing lifts to people in need through carefully vetted charitable organizations and directly see the impact of their donations.

Our partner charities that support education are about far more than classes and homework. Sponsoring the tuition of a child often means providing them lodging, meals, uniforms, vocational training and medical care. When you support a student at Amar Jyoti school, you also support an integrated educational environment (50% of their students are mentally or physically handicapped) that teaches equality and respect for all its students.

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Spread the word

With children at BPA!

Notes from the Field, January 2010

In January I visited the Blind People’s Association (BPA), a See Your Impact partner organization located in the Indian state of Gujarat. The most rewarding part of my visit was meeting Gaguben and seeing the impact BPA had on her life. Gaguben is just one success story, but there are countless people whose lives have been transformed by the good work of dedicated, transparent NGOs in the field. However, a vital component of her story is missing: how did Gaguben find out about the free cataract surgeries offered by BPA? Providing services is just the first step for many organizations whose target populations live in rural areas. Connecting people in need to the services being provided is a major obstacle for some of our partners. Not all children go to school, not all adults work regular jobs, not all families have access to transportation. If you want to help as many people as possible, how do you reach them?

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Gaguben’s journey

A $30 donation restored Gaguben’s vision and completely transformed her life. Watch the video to see how!

Click here to donate a cataract surgery!

Gaguben back in action!

Dinesh is reading Gandhi in Braille!
Working together we can make a difference!

Ragini playing at school

A small group of people has truly made a difference in the life of Ragini, a five year-old girl with down syndrome. When she started at school she was unable to concentrate unless a teacher was directly interacting with her, helping her learn new skills. She could not sit still. She was hesitant to mix with other students.

Slowly, the gifted teachers at Amar Jyoti school have helped Ragini come out of her shell. She is becoming more social and her motor coordination is improving, such that she is now able to fill a bag with blocks. Amar Jyoti school is really helping Ragini.

She still faces one major obstacle, however: her family cannot afford her school fees.

Megha, Sneha, Hazel, Sameer, Bruce and Brian all donated tuition to Amar Jyoti school. These gifts were combined to sponsor a full year of tuition for Ragini. She now can continue to receive the specialized attention she requires at school.

When we work together we can make a difference!

Making a difference on and off the court
Rohit Kr. Pasi

Rohit playing basketball!

Rohit is a fourteen year old boy who loves to play basketball. Rohit also has polio, but he hasn’t let that stop him from getting involved in sports at Amar Jyoti school. In the six years he has attended Amar Jyoti, his teachers have noticed a steadily increasing level of confidence in Rohit, both in the classroom and on the court.

Rohit’s father is a rickshaw driver, which makes it impossible for him to afford Rohit’s tuition. Ravi, your generous contribution has sponsored an entire year of Rohit’s tuition. During that year he will continue to improve his stellar handwriting, work on fractions and, of course, play basketball. But more importantly, he will develop his self confidence on and off the court.

Click here to learn how you can help!

Bharat loves his new tricycle and his independence!
Kamruddin practices writing at Amar Jyoti
Parental involvement at Amar Jyoti