Staff Members - Benha University
Correlation between axial length and applanation tonometry
Zagazig Medical Journal • 2003
Publication Information
Authors
Shereef Abdelwahab
Keywords
Not Available
Journal
Zagazig Medical Journal
Publisher
Not Available
Volume
Not Available
Issue
Not Available
Pages
Not Available
publication.type
Local
Paper Link
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Supplementary Materials
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Abstract
AIM: To investigate the physical principle that suggests that a large globe offers less resistance to applanation than a small one.
METHODS: 400eyes of 200 adults were included in this study. All patients were randomly selected from patients scheduled for cataract surgery at Benha Faculty of medicine hospital. Preoperatively, all patients had their intraocular pressure (IOP) measured and their axial length was also measured and recorded. Data collected was examined using a regression analysis .
RESULTS: There was a statistically significant negative correlation where it was found that for every 1.0 mm increase in axial length the tonometry value was 0.28 units lower (P= 0.0002)
CONCLUSION: The size of the globe may influence the applanation tonometry readings. Thus when clinical findings do not fit the tonometry readings, axial length measurement may give a clue.
METHODS: 400eyes of 200 adults were included in this study. All patients were randomly selected from patients scheduled for cataract surgery at Benha Faculty of medicine hospital. Preoperatively, all patients had their intraocular pressure (IOP) measured and their axial length was also measured and recorded. Data collected was examined using a regression analysis .
RESULTS: There was a statistically significant negative correlation where it was found that for every 1.0 mm increase in axial length the tonometry value was 0.28 units lower (P= 0.0002)
CONCLUSION: The size of the globe may influence the applanation tonometry readings. Thus when clinical findings do not fit the tonometry readings, axial length measurement may give a clue.