View in EDS PDF Full Text

Intermediate spatial frequency letter contrast sensitivity: its relation to visual resolution before and during amblyopia treatment.

Saved in:
Bibliographic Details
Title: Intermediate spatial frequency letter contrast sensitivity: its relation to visual resolution before and during amblyopia treatment.
Authors: Moseley, Merrick J., Stewart, Catherine E., Fielder, Alistair R., Stephens, David A.
Source: Ophthalmic & Physiological Optics. Jan2006, Vol. 26 Issue 1, p1-4. 4p. 2 Graphs.
Subjects: Amblyopia, Eye examination, Eye movement disorders, Vision disorders, Ophthalmology, Optometry
Abstract: We examined the loss of letter contrast sensitivity (LCS) measured using the Pelli-Robson chart, and the extent to which any such loss was modulated by spectacle wear and occlusion therapy in children participating in an amblyopia treatment trial. Their initial mean interocular difference in logMAR acuity was approximately three times that of their LCS (0.45 vs 0.14 log units). Log LCS was weakly though significantly correlated with logMAR visual acuity (VA) for all VAs better than 0.90 ( r = −0.19, 95% CI: −0.28 to −0.10) whereas for all VAs of 0.90 or poorer, log LCS was markedly and significantly correlated with VA ( r = −0.72, 95% CI: −0.83 to −0.53). LCS in those children with a ≥0.1 log unit interocular difference on this test improved commensurately with VA during treatment. We conjecture that the spatial visual loss in all but the most severe amblyopes occurs in an area of resolution and contrast space that lies beyond that sampled by the Pelli-Robson chart. [ABSTRACT FROM AUTHOR]
Copyright of Ophthalmic & Physiological Optics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
FullText Links:
  – Type: pdflink
Text:
  Availability: 0
Header DbId: pbh
DbLabel: Psychology and Behavioral Sciences Collection
An: 19215674
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Intermediate spatial frequency letter contrast sensitivity: its relation to visual resolution before and during amblyopia treatment.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Moseley%2C+Merrick+J%2E%22">Moseley, Merrick J.</searchLink><br /><searchLink fieldCode="AR" term="%22Stewart%2C+Catherine+E%2E%22">Stewart, Catherine E.</searchLink><br /><searchLink fieldCode="AR" term="%22Fielder%2C+Alistair+R%2E%22">Fielder, Alistair R.</searchLink><br /><searchLink fieldCode="AR" term="%22Stephens%2C+David+A%2E%22">Stephens, David A.</searchLink>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Ophthalmic+%26+Physiological+Optics%22">Ophthalmic & Physiological Optics</searchLink>. Jan2006, Vol. 26 Issue 1, p1-4. 4p. 2 Graphs.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Amblyopia%22">Amblyopia</searchLink><br /><searchLink fieldCode="DE" term="%22Eye+examination%22">Eye examination</searchLink><br /><searchLink fieldCode="DE" term="%22Eye+movement+disorders%22">Eye movement disorders</searchLink><br /><searchLink fieldCode="DE" term="%22Vision+disorders%22">Vision disorders</searchLink><br /><searchLink fieldCode="DE" term="%22Ophthalmology%22">Ophthalmology</searchLink><br /><searchLink fieldCode="DE" term="%22Optometry%22">Optometry</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: We examined the loss of letter contrast sensitivity (LCS) measured using the Pelli-Robson chart, and the extent to which any such loss was modulated by spectacle wear and occlusion therapy in children participating in an amblyopia treatment trial. Their initial mean interocular difference in logMAR acuity was approximately three times that of their LCS (0.45 vs 0.14 log units). Log LCS was weakly though significantly correlated with logMAR visual acuity (VA) for all VAs better than 0.90 ( r = −0.19, 95% CI: −0.28 to −0.10) whereas for all VAs of 0.90 or poorer, log LCS was markedly and significantly correlated with VA ( r = −0.72, 95% CI: −0.83 to −0.53). LCS in those children with a ≥0.1 log unit interocular difference on this test improved commensurately with VA during treatment. We conjecture that the spatial visual loss in all but the most severe amblyopes occurs in an area of resolution and contrast space that lies beyond that sampled by the Pelli-Robson chart. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Ophthalmic & Physiological Optics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=19215674
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1111/j.1475-1313.2005.00343.x
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 4
        StartPage: 1
    Subjects:
      – SubjectFull: Amblyopia
        Type: general
      – SubjectFull: Eye examination
        Type: general
      – SubjectFull: Eye movement disorders
        Type: general
      – SubjectFull: Vision disorders
        Type: general
      – SubjectFull: Ophthalmology
        Type: general
      – SubjectFull: Optometry
        Type: general
    Titles:
      – TitleFull: Intermediate spatial frequency letter contrast sensitivity: its relation to visual resolution before and during amblyopia treatment.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Moseley, Merrick J.
      – PersonEntity:
          Name:
            NameFull: Stewart, Catherine E.
      – PersonEntity:
          Name:
            NameFull: Fielder, Alistair R.
      – PersonEntity:
          Name:
            NameFull: Stephens, David A.
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 01
              Text: Jan2006
              Type: published
              Y: 2006
          Identifiers:
            – Type: issn-print
              Value: 02755408
          Numbering:
            – Type: volume
              Value: 26
            – Type: issue
              Value: 1
          Titles:
            – TitleFull: Ophthalmic & Physiological Optics
              Type: main
ResultId 1