Evidence map›Paper›PMID 23224148›Full record

ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2013

Five-year forecasts of the Visual Field Index (VFI) with binocular and monocular visual fields.

Ryo Asaoka, Richard A Russell, Rizwan Malik, David F Garway-Heath, David P Crabb

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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.

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

6 citing papers in PubMed, 11 citations in OpenAlex.

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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

5 authors at 3 institutions in 1 country.

Ryo AsaokaDepartment of Optometry and Visual Science, City University London, Northampton Square, London, EC1V 0HB, UK. rasaoka-tky@umin.ac.jp
Richard A Russell
Rizwan Malik
David F Garway-Heath
David P Crabb
City, University of London · GBMoorfields Eye Hospital NHS Foundation Trust · GBUniversity College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn clinical care, visual field (VF) damage is assessed using monocular VF testing, yet patients perceive the world binocularly. This study was conducted to compare 5-year forecasts for the Visual Field Index (VFI) generated from series of binocular and monocular VFs.

methodsSeries of ten consecutive VFs (Humphrey 24-2 Full-threshold) spanning on average 3.7 (SD: ±0.8) years from 60 eyes of 30 glaucomatous patients were retrospectively examined. The VFs of both eyes were merged to produce the integrated VF and its VFI score (Binocular VFI) was estimated. Forecasts of binocular and monocular VFIs were calculated for each patient by projecting the fitted linear regression 5 years ahead from the last VF following the method on the Humphrey Guided Progression Analysis (GPA) print-out. The precisions of the forecasts were calculated as the width of the 95% prediction limit (PL).

resultsThe mean 5 year forecast for binocular VFIs was 92% (SD: 11%), which was significantly higher than forecasts from right and left eyes (79% [SD: 19%] and 82% [SD: 16%] respectively; P < 0.05). The width of the 95% PL for 5-year predictions with monocular VFIs (mean right eye: 29% [SD: 19%] and mean left eye: 27% [SD: 16%]) were significantly larger than that of the binocular VFI (mean: 12% [SD: 7%]; P < 0.05).

conclusionsFive year forecasted VFI values using binocular measures return significantly better values, and can be made with greater confidence than those based on monocular measures. In turn, forecasts of a patient's binocular VFI might be more relevant to estimating the patient's future functional VF.

Indexed as

AdultAgedDisease ProgressionFemaleGlaucoma, Open-AngleHumansLow Tension GlaucomaMaleMiddle AgedPrognosisRetrospective StudiesVision, BinocularVision DisordersVision, MonocularVisual FieldsVisual Field Tests

Identifiers

PMID23224148
OpenAlexW1993123550

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.