Evidence map›Paper›PMID 27895995›Full record

ArticleBiomedical optics express2016

Photoreceptor disc shedding in the living human eye.

Omer P Kocaoglu, Zhuolin Liu, Furu Zhang, Kazuhiro Kurokawa, Ravi S Jonnal, Donald T Miller

Open access · goldAbstract read
In one paragraph

Article in Biomedical optics express, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 4% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

72 citing papers in PubMed, 1 synthesis or guideline pooled it, 96 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Optical Assessment of Photoreceptor Function Over the Macula.Translational vision science & technology · 2024
    Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Lysosomes in retinal health and disease.Trends in neurosciences · 2023
    Review
  20. Adaptive Optics Imaging of Inherited Retinal Disease.Cold Spring Harbor perspectives in medicine · 2023
    Review

12 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

6 authors at 1 institution in 1 country.

Omer P KocaogluSchool of Optometry, Indiana University, Bloomington, IN 47405, USA.
Zhuolin LiuSchool of Optometry, Indiana University, Bloomington, IN 47405, USA.
Furu ZhangSchool of Optometry, Indiana University, Bloomington, IN 47405, USA.
Kazuhiro KurokawaSchool of Optometry, Indiana University, Bloomington, IN 47405, USA.
Ravi S JonnalDepartment of Ophthalmology & Vision Science, University of California, Davis, CA 95616, USA.
Donald T MillerSchool of Optometry, Indiana University, Bloomington, IN 47405, USA.
Indiana University Bloomington · US

Funding

Optical Imaging of the Photoreceptor-RPE ComplexR01EY018339 · NEI · TRUSTEES OF INDIANA UNIVERSITY · PI MILLER, DONALD T · 2007 to 2025
$7.7M
Properties of Photoreceptors and Muller Cells Investigated with AO-OCTR00EY026068 · NEI · UNIVERSITY OF CALIFORNIA AT DAVIS · PI JONNAL, RAVI S. · 2018 to 2020
$739k
Properties of photoreceptors and Muller cells investigated with AO-OCTK99EY026068 · NEI · UNIVERSITY OF CALIFORNIA AT DAVIS · PI JONNAL, RAVI S. · 2016 to 2017
$196k
NEI NIH HHS K99 EY026068NEI NIH HHS R00 EY026068NEI NIH HHS R01 EY018339
6 · The paper itself

Abstract

Cone photoreceptors undergo a daily cycle of renewal and shedding of membranous discs in their outer segments (OS), the portion responsible for light capture. These physiological processes are fundamental to maintaining photoreceptor health, and their dysfunction is associated with numerous retinal diseases. While both processes have been extensively studied in animal models and postmortem eyes, little is known about them in the living eye, in particular human. In this study, we report discovery of the optical signature associated with disc shedding using a method based on adaptive optics optical coherence tomography (AO-OCT) in conjunction with post-processing methods to track and monitor individual cone cells in 4D. The optical signature of disc shedding is characterized by an abrupt transient loss in the cone outer segment tip (COST) reflection followed by its return that is axially displaced anteriorly. Using this signature, we measured the temporal and spatial properties of shedding events in three normal subjects. Average duration of the shedding event was 8.8 ± 13.4 minutes, and average length loss of the OS was 2.1 μm (7.0% of OS length). Prevalence of cone shedding was highest in the morning (14.3%) followed by the afternoon (5.7%) and evening (4.0%), with load distributed across the imaged patch. To the best of our knowledge these are the first images of photoreceptor disc shedding in the living retina.

Indexed as

(110.1080) Active or adaptive optics(170.4470) Ophthalmology(170.4500) Optical coherence tomography(330.4300) Vision system - noninvasive assessment(330.5310) Vision - photoreceptors(330.7331) Visual optics, receptor optics

Identifiers

PMID27895995
PMCPMC5119595
OpenAlexW2531412645

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.