{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T10:22:56Z","timestamp":1787653376103,"version":"build-2736575974"},"reference-count":81,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T00:00:00Z","timestamp":1787616000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Med. Technol."],"abstract":"<jats:p>Advanced degenerative retinal diseases [e.g., retinitis pigmentosa (RP) and age-related macular degeneration (AMD)] are characterized by irreversible photoreceptor loss, and conventional interventions rarely prevent progression to profound vision loss at advanced stages. Retinal prostheses and optogenetic therapies are two leading bionic strategies to bypass absent photoreceptors, yet both are limited by a shared \u201cencoding\u2013biointerface\u201d bottleneck: converting external scenes into interpretable neural activity in surviving retinal circuits with adequate selectivity, safety margins, and long-term stability. This review critically compares the two approaches in spatial resolution, neural adaptation, and biosafety, while explicitly distinguishing clinical evidence from preclinical and proof-of-concept studies. Retinal prostheses provide near-term light perception and limited form vision but are constrained by current spread, non-selective pathway\/axon recruitment, interface reactions, and cortical decoding burden. Optogenetic restoration offers cell-type\u2013biased reactivation and potentially more physiological processing, but currently remains coupled to external light-delivery hardware and is limited by scattering, heterogeneous transduction, safety-limited irradiance, restricted dynamic range, and adeno-associated virus (AAV)\u2013related inflammatory risk. We highlight emerging integrative directions, including opto-electronic hybrid interfaces, adaptive encoding, broadband subretinal nanomaterial-based photovoltaic nanoprostheses, and experimental acoustic modalities (e.g., focused ultrasound and sonogenetics), alongside ethical and accessibility considerations for translation.<\/jats:p>","DOI":"10.3389\/fmedt.2026.1898982","type":"journal-article","created":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T09:55:22Z","timestamp":1787651722000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Bionic vision technologies: progress and perspectives on retinal prostheses and optogenetics for the treatment of advanced retinal degeneration"],"prefix":"10.3389","volume":"8","author":[{"given":"Na","family":"Long","sequence":"first","affiliation":[{"name":"Department of Ophthalmology, Anqing Municipal Hospital","place":["Anqing, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Meng","family":"Si","sequence":"additional","affiliation":[{"name":"Department of Pharmacy, Anqing Municipal Hospital","place":["Anqing, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yin","family":"Jiang","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Anqing Municipal Hospital","place":["Anqing, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fan","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Anqing Shihanbin Aier Eye Hospital","place":["Anqing, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bei","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Anqing Municipal Hospital","place":["Anqing, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fei","family":"Jiang","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Anqing Municipal Hospital","place":["Anqing, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shangang","family":"Pan","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Anqing Municipal Hospital","place":["Anqing, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xueqin","family":"Chu","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Anqing Municipal Hospital","place":["Anqing, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huarong","family":"Wu","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Anqing Municipal Hospital","place":["Anqing, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,8,25]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"1040090","DOI":"10.3389\/fncel.2022.1040090","article-title":"Differences in the spatial fidelity of evoked and spontaneous signals in the degenerating retina","volume":"16","author":"Carleton","year":"2022","journal-title":"Front Cell Neurosci"},{"key":"B2","doi-asserted-by":"publisher","first-page":"327","DOI":"10.1016\/B978-0-443-22212-2.00015-X","article-title":"Insights into retinal remodeling in retinal degenerative disease","volume":"218","author":"Jones","year":"2026","journal-title":"Handb Clin Neurol"},{"key":"B3","doi-asserted-by":"publisher","first-page":"e0129242024","DOI":"10.1523\/JNEUROSCI.0129-24.2024","article-title":"Retinoic acid-dependent loss of synaptic output from bipolar cells impairs visual information processing in inherited retinal degeneration","volume":"44","author":"Ganzen","year":"2024","journal-title":"J Neurosci"},{"key":"B4","doi-asserted-by":"publisher","first-page":"1038","DOI":"10.1051\/medsci\/2020213","article-title":"Vision restoration: science fiction or reality?","volume":"36","author":"Picaud","year":"2020","journal-title":"Med Sci (Paris)"},{"key":"B5","doi-asserted-by":"publisher","first-page":"1067","DOI":"10.1080\/07853890.2022.2066169","article-title":"New frontiers of retinal therapeutic intervention: a critical analysis of novel approaches","volume":"54","author":"Nanegrungsunk","year":"2022","journal-title":"Ann Med"},{"key":"B6","doi-asserted-by":"publisher","first-page":"8","DOI":"10.1016\/j.jocn.2020.05.041","article-title":"Bionic eye review\u2014an update","volume":"78","author":"Nowik","year":"2020","journal-title":"J Clin Neurosci"},{"key":"B7","doi-asserted-by":"publisher","first-page":"736","DOI":"10.1111\/aos.14443","article-title":"Highest reported visual acuity after electronic retinal implantation","volume":"98","author":"Cehajic Kapetanovic","year":"2020","journal-title":"Acta Ophthalmol"},{"key":"B8","doi-asserted-by":"publisher","first-page":"106","DOI":"10.1186\/s13036-025-00548-2","article-title":"Can bionic eyes restore vision? 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