How does the new device differ from Argus II and Retina Implant?

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The New Ocular Implant Offers Enhanced Image Resolution Compared to Predecessors

A newly developed ocular implant, designed by French researchers, aims to restore sight for patients with age-related macular degeneration (AMD) by significantly improving the resolution of perceived images through infrared stimulation. This advancement addresses the limitations of earlier devices like Argus II and Retina Implant, which provided insufficient results for AMD patients, with only a small number able to distinguish letters. The new device is characterised by its simpler, connected design and its capacity to project higher-resolution images.
Enhanced Image Resolution Through Infrared Stimulation

The core innovation of the new device lies in its approach to image perception. Unlike previous models, it is engineered to improve the resolution of images perceived by the eye via infrared stimulation. This method is intended to more effectively replicate the function of the retina's natural light-sensitive cells, the photoreceptors, which are compromised in AMD patients.
Addressing Insufficient Results from Previous Devices

Marketed devices such as Argus II and Retina Implant have faced challenges due to their limited efficacy in AMD patients. Serge Picaud, an Inserm researcher leading the project, noted that while these earlier implants enabled patients to perceive light signals, the ability to distinguish letters was rare. The current research is focused on overcoming this deficiency by developing a visual prosthesis that offers a more substantial restoration of visual acuity.
Simpler, Connected Design for Broader Application

The French researchers' objective was to create a visual prosthesis that is not only more effective but also simpler in its design. The new implant is described as a connected device, suggesting potential for improved functionality and integration. This simplified yet advanced approach is being tested to see if it can be applied to conditions beyond AMD, such as retinitis pigmentosa, which also involves photoreceptor degeneration.

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How does the new device differ from Argus II and Retina Implant?

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