Bodil Gesslein
Visiting research fellow
Comparison of perimetric 24-2 and 30-2 test patterns in detecting visual field defects in patients with tumours in the pituitary region
Author
Summary, in English
PURPOSE: Automated perimetry provides a standardized method of measuring the visual field. The Humphrey Field Analyser (HFA) uses the 24-2 test pattern to cover 24 degrees centrally or the 30-2 test pattern to cover a slightly broader region of 30 degrees. The aim of this study was to determine whether the 24-2 test pattern provides comparable information to the 30-2 test pattern in detecting visual field defects in patients with tumours in the pituitary region.
METHODS: A retrospective cohort study was carried out on patients with tumours in the pituitary region and radiologically confirmed compression of the visual pathway. Included patients (79 of 133) had been examined using the Humphrey 30-2 visual field test, after which the 30-2 test patterns were reduced into corresponding 24-2 test patterns. The location of visual field defects, visual acuity and the perimetric parameters mean deviation (MD) and visual field index (VFI) were also recorded.
RESULTS: No patient was classified differently when evaluated with the 24-2 test pattern, compared to the 30-2 test pattern. Interestingly, although the majority of patients had visual field defects located in the temporal visual field of each eye, a significant minority did not. In addition, it was found that a large proportion of patients had normal visual acuity (≥0.8).
CONCLUSIONS: The use of the HFA 24-2 test pattern reliably detected visual field defects in patients with tumours in the pituitary region. The present study indicates that MD and VFI are not reliable parameters for evaluating visual field defects due to compression.
Department/s
- Ophthalmology Imaging Research Group
- Ophthalmology, Lund
- LU Profile Area: Light and Materials
- Ophthalmology (Malmö)
- EpiHealth: Epidemiology for Health
- LUCC: Lund University Cancer Centre
- Glioma immunotherapy group
- Neurosurgery
- Clinical research in neuro-ophthalmology
- LTH Profile Area: Photon Science and Technology
Publishing year
2023-07-14
Language
English
Publication/Series
Acta Ophthalmologica
Document type
Journal article
Publisher
Wiley-Blackwell
Topic
- Ophthalmology
- Cancer and Oncology
Status
Epub
Research group
- Ophthalmology Imaging Research Group
- Ophthalmology (Malmö)
- Glioma immunotherapy group
- Clinical research in neuro-ophthalmology
ISBN/ISSN/Other
- ISSN: 1755-3768