Implantation of modular photovoltaic subretinal prosthesis
Open accessAbstract
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 µm 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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Multiple PRIMA devices have been placed in the rabbit eye to increase the visual angle.
“Multiple PRIMA devices have been placed in the rabbit eye to increase the visual angle [123].”
From Advances in visual prostheses: engineering and biological challenges (2022) · cites this paper as [123]
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References 9 · Cited by 30
- Authors
- Lee, D. Y., Lorach, H., Huie, P., & Palanker, D.
- Affiliations
- Gachon University Gil Medical Center (KR)
- Corresponding author
- Lorach, Henri
- Venue
- Ophthalmic Surgery, Lasers and Imaging Retina
- Publisher
- SLACK, Inc.
- Published
- 2016-02
- Volume
- 47
- Issue
- 2
- Pages
- 171-174
- ISSN
- 1542-8877 (ISSN-L)
- 2325-8160
- 2325-8179
- PMC
- PMC6492552
- OpenAlex
- W2263889128
- Cited by
- 30
- References
- 9
- Citations by year
- 2025: 3 · 2023: 2 · 2022: 3 · 2021: 4 · 2020: 7 · 2019: 2 · 2018: 5 · 2017: 1 · 2016: 3
- FWCI
- 2.06
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Ophthalmic surgery, lasers & imaging retina (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- Funders
- U.S. Department of Defense (W81XWH-15–1-, W81XWH, W81XWH1510009)
- National Institutes of Health (W81XWH)
- National Eye Institute (R01-EY-18608, R01EY018608)
- Topics
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
- Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Retinal and Macular Surgery
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinal Development and Disorders
- Keywords
- retinotomy, vitrectomy, retinal detachment, optical coherence tomography, rabbit model, vision restoration, minimally invasive surgery
- MeSH terms
- Animals, Electrodes, Implanted, Electric Stimulation Therapy, Microelectrodes, Rabbits, Retina, Retinal Detachment, Vitrectomy, Prosthesis Implantation, Tomography, Optical Coherence, Visual Prosthesis
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