Joshua Silver, Centre for Vision in the Developing World

Adspecs are self-adjustable eyeglasses made for the rural population.

Product description Brand name and product description

Adspecs are self-adjustable eyeglasses which allow users to set the right focus for each lens. The pair of lenses work on the principle of making the lens to go from convex to concave with the application of fluid-filled syringes. The syringes transfer the fluid in between the bi-layer of the lens and set the focal length.

Target region(s) Target region for distribution/implementation (listed by country if specified)
Distributors/implementing organizations Organization(s) distributing/deploying this product directly to communities/individuals?"

Centre for Vision in the Developing World (CVDW) partnered with government and community organizations for trials.

Partners include the US Military Humanitarian and Civic Assistance Program, the Ghana Education Ministry, Non-Formal Education Division (NFED), and Global Vision 2020.

Other distributors include: The Rural Development Centre (RUDEC) in Cameroon and Remote Area Medicine’s (RAM) vision outreach project in Bolivia.


Market suggested retail price Price per unit or service price per usage/terms (USD). Subsidies noted.

19 USD per pair

Competitive landscape Similar products available on the market. May not be a comprehensive listing.

OneDollarGlasses, EyejustersFocusspec (Focus On Vision, The Netherlands), Adlens  (Adlens Ltd, United Kingdom), ChildViSion glasses  (Dow Corp and Center for Vision in the Developing World),

SDG targeted United Nations Sustainable Development Goals (SDGs) targeted with this product/application/service

Goal 3: Good health and well-being

Target user(s) Target user/consumer base (country, income segment)

People in developing countries requiring vision aids who do not have access to a trained optometrist to obtain prescription glasses.

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