Implantation of Modular Photovoltaic Subretinal Prosthesis
- Authors
- Lee, Dae Yeong; Lorach, Henri; Huie, Phil; Palanker, Daniel
- Issue Date
- Feb-2016
- Publisher
- SLACK INC
- Citation
- OPHTHALMIC SURGERY LASERS & IMAGING RETINA, v.47, no.2, pp.171 - 174
- Journal Title
- OPHTHALMIC SURGERY LASERS & IMAGING RETINA
- Volume
- 47
- Number
- 2
- Start Page
- 171
- End Page
- 174
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/8651
- DOI
- 10.3928/23258160-20160126-11
- ISSN
- 2325-8160
- Abstract
- BACKGROUND AND OBJECTIVE: Establish the surgical procedure for subretinal implantation of multiple photovoltaic arrays for the restoration of sight. MATERIALS AND METHODS: Multiple silicon photovoltaic arrays of 1 mm in diameter and 30 mu m in thickness were implanted subretinally via single retinotomy in rabbits. Ophthalmoscopic imaging and optical coherence tomography (OCT) were used to validate the implants' placement. RESULTS: Vitrectomy, followed by subretinal fluid injection for retinal detachment and retinotomy, allowed accurate placement of seven modules in the bleb, covering approximately a 3.5-mm diameter area on the retina via a single 1.5-mm retinotomy. OCT confirmed complete reattachment of the retina over the implants. CONCLUSION: Subretinal implantation of multiple photovoltaic arrays via a single retinotomy, followed by their tiling, minimizes the scleral and retinal incisions and provides better fit to the spherical shape of the eye ball, compared to a single, larger module. Such minimally traumatic procedure can be performed with 20-gauge intraocular instruments.
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