Literature DB >> 7295633

Does the Catford drum give an accurate assessment of acuity?

J Atkinson, O Braddick, E Pimm-Smith, L Ayling, R Sawyer.   

Abstract

Adult emmetropes and myopes were tested with the Catford drum and the results compared with subjective (Landolt C) acuity. For he emmetropes the Catford drum was found to overestimate visual acuity by a factor of approximately 4. For myopes, and emmetropes viewing through plus lenses, the discrepancies were much larger. Since the Catford drum not only overestimates acuity but will do so by a factor which varies for different visual disorders, caution is needed in clinical interpretation of results obtained with it.

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Year:  1981        PMID： 7295633      PMCID： PMC1039616          DOI： 10.1136/bjo.65.9.652

Source DB:  PubMed          Journal:  Br J Ophthalmol        ISSN： 0007-1161            Impact factor:   4.638


  10 in total

1.  Visual contrast sensitivity of a 6-month-old infant measured by the evoked potential.

Authors:  L Harris; J Atkinson; O Braddick
Journal:  Nature       Date:  1976-12-09       Impact factor: 49.962

2.  Subjective and objective visual acuity testing techniques.

Authors:  S G Khan; K F Chen; M Frenkel
Journal:  Arch Ophthalmol       Date:  1976-12

Review 3.  The importance of measuring contrast sensitivity in cases of visual disturbance.

Authors:  G B Arden
Journal:  Br J Ophthalmol       Date:  1978-04       Impact factor: 4.638

4.  Development of visual acuity.

Authors:  G V Catford; A Oliver
Journal:  Arch Dis Child       Date:  1973-01       Impact factor: 3.791

5.  The measurement of spatial contrast sensitivity in cases of blurred vision associated with cerebral lesions.

Authors:  I Bodis-Wollner; S P Diamond
Journal:  Brain       Date:  1976-12       Impact factor: 13.501

6.  Spatio-temporal interactions in anisometropic and strabismic amblyopia.

Authors:  D M Levi; R S Harwerth
Journal:  Invest Ophthalmol Vis Sci       Date:  1977-01       Impact factor: 4.799

7.  Measurement of infant visual acuity from pattern reversal evoked potentials.

Authors:  S Sokol
Journal:  Vision Res       Date:  1978       Impact factor: 1.886

8.  The threshold contrast sensitivity function in strabismic amblyopia: evidence for a two type classification.

Authors:  R F Hess; E R Howell
Journal:  Vision Res       Date:  1977       Impact factor: 1.886

9.  Contrast sensitivity assessment of functional amblyopia in humans.

Authors:  R F Hess
Journal:  Trans Ophthalmol Soc U K       Date:  1979

Review 10.  Visual acuity in human infants: a review and comparison of behavioral and electrophysiological studies.

Authors:  V Dobson; D Y Teller
Journal:  Vision Res       Date:  1978       Impact factor: 1.886
  10 in total
  4 in total

1.  Visual assessment of infants: vernier targets for the Catford drum.

Authors:  B Hopkisson; P Arnold; B Billingham; M McGarrigle; P Entwistle
Journal:  Br J Ophthalmol       Date:  1991-05       Impact factor: 4.638

2.  'Preferential looking' for monocular and binocular acuity testing of infants.

Authors:  J Atkinson; O Braddick; E Pimm-Smith
Journal:  Br J Ophthalmol       Date:  1982-04       Impact factor: 4.638

3.  Assessment of the Catford drum in visual acuity testing and its use as a measurement of visual performance in low-vision patients.

Authors:  J J Boop; J T van Dalen; G S Tyner
Journal:  Br J Ophthalmol       Date:  1987-10       Impact factor: 4.638

4.  Evaluation of central, steady, maintained fixation grading for predicting inter-eye visual acuity difference to diagnose and treat amblyopia in strabismic patients.

Authors:  Mihir Kothari; Amar Bhaskare; Deepali Mete; Svetlana Toshniwal; Priti Doshi; Shalini Kaul
Journal:  Indian J Ophthalmol       Date:  2009 Jul-Aug       Impact factor: 1.848
  4 in total

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