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  2. Visual impairment - Wikipedia

    en.wikipedia.org/wiki/Visual_impairment

    Visual or vision impairment (VI or VIP) is the partial or total inability of visual perception.In the absence of treatment such as corrective eyewear, assistive devices, and medical treatment, visual impairment may cause the individual difficulties with normal daily tasks, including reading and walking. [6]

  3. AMD Alliance International - Wikipedia

    en.wikipedia.org/wiki/AMD_Alliance_International

    AMD Alliance International is a non-profit coalition of the world’s leading vision, seniors and research organizations working to raise awareness of age-related macular degeneration, understanding of available options for prevention, early detection, treatment, rehabilitation and support services.

  4. Visual prosthesis - Wikipedia

    en.wikipedia.org/wiki/Visual_prosthesis

    The ability to give sight to a blind person via a bionic eye depends on the circumstances surrounding the loss of sight. For retinal prostheses, which are the most prevalent visual prosthetic under development (due to ease of access to the retina among other considerations), patients with vision loss due to degeneration of photoreceptors (retinitis pigmentosa, choroideremia, geographic atrophy ...

  5. Retinal implant - Wikipedia

    en.wikipedia.org/wiki/Retinal_implant

    The Manchester Royal Infirmary and Prof Paulo E Stanga announced on July 22, 2015, the first successful implantation of Second Sight's Argus II in patients with severe Age Related Macular Degeneration. [23] [24] These results are very impressive as it appears that the patients integrate the residual vision and the artificial vision. It ...

  6. Argus retinal prosthesis - Wikipedia

    en.wikipedia.org/wiki/Argus_retinal_prosthesis

    It is used as a visual prosthesis to improve the vision of people with severe cases of retinitis pigmentosa. The Argus II version of the system was approved for marketing in the European Union in March 2011, and it received approval in the US in February 2013 under a humanitarian device exemption. The Argus II system costs about US$150,000 ...

  7. Refractive error - Wikipedia

    en.wikipedia.org/wiki/Refractive_error

    Eyeglasses work as an added lens of the eye serving to bend the light to bring it to focus on the retina. Depending on the eyeglasses, they serve many functions. [36] Reading glasses These are general over-the-counter glasses which can be worn for easier reading, especially for defective vision due to aging called presbyopia.

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