Journal article
Functional vision in the real-world environment with a second-generation (44-channel) suprachoroidal retinal prosthesis
L Karapanos, CJ Abbott, LN Ayton, M Kolic, MB McGuinness, EK Baglin, SA Titchener, J Kvansakul, D Johnson, WG Kentler, N Barnes, DAX Nayagam, PJ Allen, MA Petoe
Translational Vision Science and Technology | Published : 2021
DOI: 10.1167/tvst.10.10.7
Open access
Abstract
Purpose: In a clinical trial (NCT03406416) of a second-generation (44-channel) supra-choroidal retinal prosthesis implanted in subjects with late-stage retinitis pigmentosa (RP), we assessed performance in real-world functional visual tasks and emotional well-being. Methods: The Functional Low-Vision Observer Rated Assessment (FLORA) and Impact of Vision Impairment–Very Low Vision (IVI-VLV) instruments were administered to four subjects before implantation and after device fitting. The FLORA contains 13 self-reported and 35 observer-reported items ranked for ease of conducting task (impossible-easy, central tendency given as mode). The IVI-VLV instrument quantified the impact of low vision o..
View full abstractGrants
Awarded by State Government of Victoria
Funding Acknowledgements
The authors thank Second Sight Medical Products for providing and allowing academic use of the FLORA instrument. Supported by Australian National Health and Medical Research grant no. 1082358 to P.J. Allen, L.N. Ayton, and M.A. Petoe. Additional funding support from Bionic Vision Technologies. The Bionics Institute and the Centre for Eye Research Australia acknowl-edge the support of the Victorian Government through its Operational Infrastructure Support Program.