Please use this identifier to cite or link to this item: https://hdl.handle.net/1822/5758

TitleAge differences in central and peripheral intra-ocular pressure using a rebound tonometer
Author(s)González-Méijome, José Manuel
Jorge, Jorge
Queirós, A.
Fernandes, Paulo Rodrigues
Montés-Micó, Robert
Almeida, José B.
Parafita, Manuel A.
KeywordsRebound tonometry
Peripheral tonometry
Corneal rigidity
Corneal thickness
Age
Issue dateAug-2006
PublisherBMJ Publishing Group
JournalBritish Journal of Ophthalmology
Citation"British Journal of Ophthalmology". ISSN 0007-1161. 90:8 (Aug. 2006).
Abstract(s)To evaluate the influence of age on the measurements and relationships among central and peripheral IOP readings taken with a rebound tonometer. METHODS: The intraocular pressures were assessed using the ICare(R) rebound tonometer (Tiolat Oy, Helsinki, Finland) on the right eye of two-hundred and seventeen patients (88 males, 129 females), aged 18 to 85 years (meanSD, 45.919.8 years), at the center and at 2 mm from the nasal and temporal limbus along the horizontal meridian. Three age groups were established as being less than 30 years old (n=75), from 31 to 60 years old (n=77) and above 60 years old (n=65). RESULTS: There was a high correlation between central and peripheral IOP readings, with central reading being higher than peripheral ones. The higher IOP values were found within the younger group for the central location. Subjects within the older group (above 60 years of age) presented significantly lower temporal IOP readings than the remaining two groups (p<0.001), while no significant differences were found among groups at central and nasal locations (p=0.099 and p=0.225, respectively). There was a significant decrease in nasal and temporal IOP readings as the age increased (p=0.011 and p=0.006, respectively). CONCLUSION: Older patients displayed lower IOP values than the middle-aged and younger patients in the temporal peripheral location. A negative correlation between age and IOP by rebound tonometry was found in the corneal periphery but not in its center
TypeArticle
URIhttps://hdl.handle.net/1822/5758
DOI10.1136/bjo.2006.103044
ISSN0007-1161
Publisher versionhttp://bjo.bmjjournals.com/cgi/rapidpdf/bjo.2006.103044v1
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CDF - OCV - Artigos/Papers (with refereeing)

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