Evidence map›Paper›PMID 28875347›Full record

Observational studyGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2017

The relationship between contrast sensitivity and retinal nerve fiber layer thickness in patients with glaucoma.

Sarah Amanullah, Joseph Okudolo, Kamran Rahmatnejad, Shuai-Chun Lin, Sheryl S Wizov, Remy S Manzi Muhire, Lisa A Hark, Cindy X Zheng, Tingting Zhan, George L Spaeth

Open access · greenAbstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
0.2field-weighted citation impact, top 42% 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

15 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. Observational
  3. Association of contrast sensitivity with vessel density and functional parameters in different stages of glaucoma.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2025
    Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Association of ocular blood flow and contrast sensitivity in normal tension glaucoma.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2021
    Article
  10. Spaeth/Richman Contrast Sensitivity in Staging Glaucoma.Translational vision science & technology · 2020
    Article
  11. Observational
  12. Article
  13. Article
  14. Article
  15. Article
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

10 authors at 2 institutions in 1 country.

Sarah AmanullahSidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA.
Joseph OkudoloSidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA.
Kamran RahmatnejadDepartment of Research and Glaucoma Research Center, Wills Eye Hospital, 840 Walnut Street, Suite 1140, Philadelphia, PA, 19107, USA.
Shuai-Chun LinDepartment of Research and Glaucoma Research Center, Wills Eye Hospital, 840 Walnut Street, Suite 1140, Philadelphia, PA, 19107, USA.
Sheryl S WizovDepartment of Research and Glaucoma Research Center, Wills Eye Hospital, 840 Walnut Street, Suite 1140, Philadelphia, PA, 19107, USA. swizov@willseye.org.
Remy S Manzi MuhireDepartment of Research and Glaucoma Research Center, Wills Eye Hospital, 840 Walnut Street, Suite 1140, Philadelphia, PA, 19107, USA.
Lisa A HarkSidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA.
Cindy X ZhengDepartment of Research and Glaucoma Research Center, Wills Eye Hospital, 840 Walnut Street, Suite 1140, Philadelphia, PA, 19107, USA.
Tingting ZhanDepartment of Biostatistics, Thomas Jefferson University, Philadelphia, PA, USA.
George L SpaethDepartment of Research and Glaucoma Research Center, Wills Eye Hospital, 840 Walnut Street, Suite 1140, Philadelphia, PA, 19107, USA.
Thomas Jefferson University · USWills Eye Hospital · US

Funding

Merck IISP 39138
6 · The paper itself

Abstract

purposeTo evaluate the correlation between contrast sensitivity (CS) and retinal nerve fiber layer (RNFL) in different areas of vision.

methodsThis report is a sub-analysis of a prospective, observational cohort study investigating changes in performance-based assessment, vision-related quality of life, and clinical measures in patients with moderate to advanced glaucoma. The study included 161 participants with at least a 2-year history of glaucoma who underwent annual testing for 4 years. Contrast sensitivity was measured using the Spaeth/Richman contrast sensitivity (SPARCS) test, while RNFL thickness (RNFLT) was measured using Cirrus optical coherence tomography (OCT). Statistical analyses were performed to determine correlations between CS and RNFLT; the correlations were calculated for each annual visit, totaling four correlation coefficients for each patient over the course of 4 years.

resultsThe SPARCS score in the left upper area of vision correlated the most strongly with the RNFLT of the inferior quadrant for both eyes at each annual visit, specifically in the seven o'clock sector for the left eye and the six o'clock sector for the right eye (p < 0.05). There were no discernible trends for the correlations between the other areas of CS and RNFL quadrants or clock hours over the 4 years of the study. Linear regression between the SPARCS total score and average RNFLT showed a significant direct correlation at each visit (p < 0.01).

conclusionsContrast sensitivity in the left upper area of vision for both eyes correlated most strongly with the thickness of the inferior quadrant of the RNFL. These fibers project to the temporal portion of the right occipital lobe, implying a potential center for contrast perception in this area. The longitudinal nature of the study suggests that CS may be a predictive tool for changes in RNFL in patients with glaucoma. Despite this finding, retinal damage and its relationship to CS was diffuse. In addition, SPARCS was shown to predict RNFLT. Further research is warranted to understand how CS can be used as a tool in the clinical setting.

Indexed as

Intraocular PressureAdultAgedAged, 80 and overContrast SensitivityFemaleFollow-Up StudiesGlaucomaHumansMaleMiddle AgedNerve FibersProspective StudiesRetinal Ganglion CellsROC CurveTomography, Optical CoherenceContrast sensitivityGlaucomaRetinal nerve fiber layer thicknessStructure–function

Identifiers

PMID28875347
OpenAlexW2741603315

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.