Evidence map›Paper›PMID 34383875›Full record

Trial reportTranslational vision science & technology2021

Functional Vision in the Real-World Environment With a Second-Generation (44-Channel) Suprachoroidal Retinal Prosthesis.

Lewis Karapanos, Carla J Abbott, Lauren N Ayton, Maria Kolic, Myra B McGuinness, Elizabeth K Baglin, Samuel A Titchener, Jessica Kvansakul, Dean Johnson, William G Kentler and 4 more

Registry-linked trialOpen access · goldAbstract readClinical Trial
In one paragraph

Trial report in Translational vision science & technology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03406416 (Evaluation of a Suprachoroidal Retinal Prosthesis), which is not on this map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.9field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT03406416 nacompletednot on this map

Evaluation of a Suprachoroidal Retinal Prosthesis: A 44 Channel Fully Implantable Study

TypeinterventionalSponsorMobius Medical Pty Ltd.Ran2018 to 2020Enrolled4ConditionsRetinitis Pigmentosa, ChoroideremiaArms44Ch Bionic Eye Device
3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 28 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Observational
  10. Aligning Visual Prosthetic Development With Implantee Needs.Translational vision science & technology · 2024
    Article
  11. Aligning visual prosthetic development with implantee needs.medRxiv : the preprint server for health sciences · 2024
    Article
  12. Bridging the gap of vision restoration.Frontiers in cellular neuroscience · 2024
    Review
  13. Review
  14. Article
  15. Article
  16. Towards aJournal of neural engineering · 2022
    Article
  17. Review
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors at 5 institutions in 1 country.

Lewis KarapanosCentre for Eye Research Australia, Royal Victorian Eye & Ear Hospital, East Melbourne, VIC, Australia.
Carla J AbbottCentre for Eye Research Australia, Royal Victorian Eye & Ear Hospital, East Melbourne, VIC, Australia.
Lauren N AytonCentre for Eye Research Australia, Royal Victorian Eye & Ear Hospital, East Melbourne, VIC, Australia.
Maria KolicCentre for Eye Research Australia, Royal Victorian Eye & Ear Hospital, East Melbourne, VIC, Australia.
Myra B McGuinnessCentre for Eye Research Australia, Royal Victorian Eye & Ear Hospital, East Melbourne, VIC, Australia.
Elizabeth K BaglinCentre for Eye Research Australia, Royal Victorian Eye & Ear Hospital, East Melbourne, VIC, Australia.
Samuel A TitchenerBionics Institute, East Melbourne, VIC, Australia.
Jessica KvansakulBionics Institute, East Melbourne, VIC, Australia.
Dean JohnsonSpecialised Orientation and Mobility, Melbourne, VIC, Australia.
William G KentlerDepartment of Biomedical Engineering, University of Melbourne, Parkville, VIC, Australia.
Nick BarnesResearch School of Engineering, Australian National University, Canberra, ACT, Australia.
David A X NayagamBionics Institute, East Melbourne, VIC, Australia.
Penelope J AllenCentre for Eye Research Australia, Royal Victorian Eye & Ear Hospital, East Melbourne, VIC, Australia.
Matthew A PetoeBionics Institute, East Melbourne, VIC, Australia.
Centre for Eye Research Australia · AUUniversity of Melbourne · AUAustralian College of Optometry · AUAustralian National University · AUBionics Institute · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: In a clinical trial (NCT03406416) of a second-generation (44-channel) suprachoroidal 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 on daily activities and emotional well-being. Results: Three subjects completed the FLORA for two years after device fitting; the fourth subject ceased participation in the FLORA after fitting for reasons unrelated to the device. For all subjects at each post-fitting visit, the mode ease of task with device ON was better or equal to device OFF. Ease of task improved over the first six months with device ON, then remained stable. Subjects reported improvements in mobility, functional vision, and quality of life with device ON. The IVI-VLV suggested self-assessed vision-related quality of life was not impacted by device implantation or usage. Conclusions: Subjects demonstrated sustained improved ease of task scores with device ON compared to OFF, indicating the device has a positive impact in the real-world setting. Translational Relevance: Our suprachoroidal retinal prosthesis shows potential utility in everyday life, by enabling an increased environmental awareness and improving access to sensory information for people with end-stage RP.

Indexed as

Retinitis PigmentosaVision, LowVisual ProsthesisHumansQuality of LifeVision, Ocular

Identifiers

PMID34383875
PMCPMC8362639
OpenAlexW3188148682

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.