Repository logo
 
Publication

Measurement of fusional vergence: protocol for a systematic review

2016Journal article Open access
Simple item page
dc.contributor.authorLança, Carla
dc.contributor.authorRowe, Fiona
dc.date.accessioned2016-07-04T14:53:03Z
dc.date.available2016-07-04T14:53:03Z
dc.date.issued2016
dc.description.abstractIntroduction - No validated protocol exists for the measurement of the prism fusion ranges. Many studies report on how fusional vergence ranges can be measured using different techniques (rotary prism, prism bar, loose prisms and synoptophore) and stimuli, leading to different ranges being reported in the literature. Repeatability of the different methods available and the equivalence between them it is also important. In addition, some studies available do not agree in what order fusional vergence should be measured to provide the essential information on which to base clinical judgements on compensation of deviations. When performing fusional vergence testing the most commonly accepted clinical technique is to first measure negative fusional vergence followed by a measurement of positive fusional vergence to avoid affecting the value of vergence recovery because of excessive stimulation of convergence. Von Noorden recommend using vertical fusion amplitudes in between horizontal amplitudes (base-out, base-up, base-in, and base down) to prevent vergence adaptation. Others place the base of the prism in the direction opposite to that used to measure the deviation to increase the vergence demand. Objectives - The purpose of this review is to assess and compare the accuracy of tests for measurement of fusional vergence. Secondary objectives are to investigate sources of heterogeneity of diagnostic accuracy including: age; variation in method of assessment; study design; study size; type of strabismus (convergent, divergent, vertical, cycle); severity of strabismus (constant/intermittent/latent).pt_PT
dc.identifier.citationLança CC, Rowe F. Measurement of fusional vergence: protocol for a systematic review. PROSPERO. 2016:CRD42016037133.pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.21/6297
dc.language.isoengpt_PT
dc.peerreviewednopt_PT
dc.relation.publisherversionhttp://www.crd.york.ac.uk/PROSPERO/display_record.asp?ID=CRD42016037133pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectOrthopticspt_PT
dc.subjectBinocular visionpt_PT
dc.subjectFusional vergencept_PT
dc.subjectTests accuracypt_PT
dc.subjectSystematic reviewpt_PT
dc.titleMeasurement of fusional vergence: protocol for a systematic reviewpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPageCRD42016037133pt_PT
oaire.citation.titlePROSPEROpt_PT
person.familyNameLança
person.givenNameCarla
person.identifier.ciencia-id601A-6412-BF2F
person.identifier.orcid0000-0001-9918-787X
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication0320b455-ee19-4670-8bf2-10dce9de1bec
relation.isAuthorOfPublication.latestForDiscovery0320b455-ee19-4670-8bf2-10dce9de1bec

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Measurement of fusional vergence_protocol for a systematic review.pdf
Size:
124.71 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ESTeSL - Artigos