Evidence map›Paper›PMID 35082313›Full record

Trial reportNature communications2022

Simultaneous perception of prosthetic and natural vision in AMD patients.

D Palanker, Y Le Mer, S Mohand-Said, J A Sahel

Registry-linked trialAbstract readClinical Trial
In one paragraph

Trial report in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03333954 (Feasibility Study of Compensation for Blindness With the PRIMA System in Patients With Dry Age Related Macular Degeneration), which is not on this map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
–field-weighted citation impact
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.

NCT03333954 nacompletednot on this map

Feasibility Study of Compensation for Blindness With the PRIMA System in Patients With Dry Age Related Macular Degeneration

TypeinterventionalSponsorScience CorporationRan2017 to 2024Enrolled5ConditionsDry Age-related Macular DegenerationArmsPRIMA Bionic Vision System
3 · Its place in the literature

Who cites it

71 citing papers in PubMed.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Motion perception with visual prostheses.Progress in biomedical engineering (Bristol, England) · 2026
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Restoration of Sight with Electronic Retinal Prostheses.Annual review of vision science · 2025
    Review
  17. Article
  18. Article
  19. Evaluating Deep Human-in-the-Loop Optimization for Retinal Implants Using Sighted Participants.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2025
    Article
  20. Article

11 more citing papers are in PubMed but not listed here.

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

4 authors.

D PalankerDepartment of Ophthalmology and Hansen Experimental Physics Laboratory, Stanford University, Stanford, CA, USA. palanker@stanford.edu.ORCID 0000-0002-0480-3025
Y Le MerDepartment of Ophthalmology, Fondation Ophtalmologique A. de Rothschild, Paris, France.
S Mohand-SaidClinical Investigation Center INSERM-DGOS 1423, Quinze-Vingts National Eye Hospital, Paris, France.
J A SahelDepartment of Ophthalmology, Fondation Ophtalmologique A. de Rothschild, Paris, France.ORCID 0000-0002-4831-1153

Funding

Virus Production and Manipulation of Protein/Gene Expression ModuleP30EY008098 · NEI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Ethan A Rossi · 1989 to 2026
$17.8M
Stanford Vision Research CoreP30EY026877 · NEI · STANFORD UNIVERSITY · PI Jeffrey L Goldberg · 2017 to 2026
$8.0M
Photovoltaic Subretinal Prosthesis with High Pixel DensityR01EY027786 · NEI · STANFORD UNIVERSITY · PI PALANKER, DANIEL V · 2017 to 2021
$3.3M
NEI NIH HHS P30 EY008098NEI NIH HHS P30 EY026877NEI NIH HHS R01 EY027786
6 · The paper itself

Abstract

Loss of photoreceptors in atrophic age-related macular degeneration (AMD) results in severe visual impairment. Since the low-resolution peripheral vision is retained in such conditions, restoration of central vision should not jeopardize the surrounding healthy retina and allow for simultaneous use of the natural and prosthetic sight. This interim report, prespecified in the study protocol, presents the first clinical results with a photovoltaic substitute of the photoreceptors providing simultaneous use of the central prosthetic and peripheral natural vision in atrophic AMD. In this open-label single group feasibility trial (NCT03333954, recruitment completed), five patients with geographic atrophy have been implanted with a wireless 2 x 2 mm-wide 30 µm-thick device, having 378 pixels of 100 µm in size. All 5 patients achieved the primary outcome of the study by demonstrating the prosthetic visual perception in the former scotoma. The four patients with a subretinal placement of the chip demonstrated the secondary outcome: Landolt acuity of 1.17 ± 0.13 pixels, corresponding to the Snellen range of 20/460-20/565. With electronic magnification of up to a factor of 8, patients demonstrated prosthetic acuity in the range of 20/63-20/98. Under room lighting conditions, patients could simultaneously use prosthetic central vision and their remaining peripheral vision in the implanted eye and in the fellow eye.

Indexed as

Visual PerceptionVisual ProsthesisAgedAged, 80 and overElectric StimulationElectric Stimulation TherapyEquipment DesignEyeglassesGeographic AtrophyHumansMacular DegenerationRetinaTreatment OutcomeVision DisordersVisual Acuity

Identifiers

PMID35082313
PMCPMC8792035

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.