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Björn Hammar, MD, PhD. Photo.

Björn Hammar

Specialist physician

Björn Hammar, MD, PhD. Photo.

Comparison of a new digital KM screen test with conventional Hess and Lees screen tests in the mapping of ocular deviations

Author

  • Rannveig Linda Thorisdottir
  • Johanna Sundgren
  • Rafi Sheikh
  • Jonas Blohmé
  • Björn Hammar
  • Sten Kjellström
  • Malin Malmsjö

Summary, in English

PURPOSE: To evaluate the digital KM screen computerized ocular motility test and to compare it with conventional nondigital techniques using the Hess and Lees screens.

METHODS: Patients with known ocular deviations and a visual acuity of at least 20/100 underwent testing using the digital KM screen and the Hess and Lees screen tests. The examination duration, the subjectively perceived difficulty, and the patient's method of choice were compared for the three tests. The accuracy of test results was compared using Bland-Altman plots between testing methods.

RESULTS: A total of 19 patients were included. Examination with the digital KM screen test was less time-consuming than tests with the Hess and Lees screens (P < 0.001 and P = 0.003, resp., compared with the digital KM screen). Patients found the test with the digital KM screen easier to perform than the Lees screen test (P = 0.009) but of similar difficulty to the Hess screen test (P = 0.203). The majority of the patients (83%) preferred the digital KM screen test to both of the other screen methods (P = 0.008). Bland-Altman plots showed that the results obtained with all three tests were similar.

CONCLUSIONS: The digital KM screen is accurate and time saving and provides similar results to Lees and Hess screen testing. It also has the advantage of a digital data analysis and registration.

Department/s

  • Ophthalmology Imaging Research Group
  • Ophthalmology, Lund
  • Clinical research in neuro-ophthalmology

Publishing year

2018-08

Language

English

Pages

6-280

Publication/Series

JAAPOS

Document type

Journal article

Publisher

Elsevier

Topic

  • Ophthalmology

Status

Published

Research group

  • Ophthalmology Imaging Research Group
  • Clinical research in neuro-ophthalmology

ISBN/ISSN/Other

  • ISSN: 1091-8531