Abstract:
PURPOSE:To assess and investigate the relationship between diurnal variations in intraocular pressure (IOP) and biomechanical properties of cornea. METHODS:Sixty-two healthy volunteers were recruited. Corneal compensated IOP (IOPcc), Goldmann-correlated IOP (IOPg), corneal resistance factor (CRF), and corneal hysteresis (CH) parameters were recorded by the Ocular Response Analyzer (ORA). Central corneal thickness (CCT) was measured using an ultrasonic pachymeter. Three consecutive measurements of IOPcc, IOPg, CRF, CH, and CCT were recorded at 8:00 am, 11:00 am, 2:00 pm, and 5:00 pm. One-way analysis of variance and Pearson correlation tests were used for statistical analysis. Intra device repeatability was evaluated using Scheffe multiple comparison. RESULTS:IOPcc, IOPg, CRF, CH, and CCT measurements displayed a stable profile during daytime acquisitions and no statistically significant variation was noted (p>0.05). All measurements of IOPcc, IOPg, CRF, and CH recorded by ORA at 8:00 am, 11:00 am, 2:00 pm, and 5:00 pm were all found to be highly repeatable (p>0.05). There was a statistically significant and inverse correlation between IOPcc and CH (p=0.001), and a positive correlation was detected between IOPcc and CRF (p=0.001). CRF and CH were both found to be positively correlated to CCT (p=0.001). CONCLUSIONS:IOPcc readings and recordings of corneal biomechanics were constant throughout the day in healthy eyes. CRF and CH seem to exert different effects on IOPcc as diverse correlations were detected between CRF, CH, and IOPcc. Assessment of IOP and corneal biomechanics using ORA was found to be a highly repeatable.
journal_name
Eur J Ophthalmoljournal_title
European journal of ophthalmologyauthors
Oncel B,Dinc UA,Gorgun E,Yalvaç BIdoi
10.1177/112067210901900518subject
Has Abstractpub_date
2009-09-01 00:00:00pages
798-803issue
5eissn
1120-6721issn
1724-6016pii
7E2E5540-7DF6-4D71-A923-E00C70884F25journal_volume
19pub_type
杂志文章abstract:INTRODUCTION:Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a novel virus causing an ongoing pandemic in 2020. Although the symptomatic patients infected by SARS-CoV-2 generally show respiratory distress, atypical manifestations such as conjunctivitis are also observed. A series of cases are reported i...
journal_title:European journal of ophthalmology
pub_type: 杂志文章
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journal_title:European journal of ophthalmology
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journal_title:European journal of ophthalmology
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journal_title:European journal of ophthalmology
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journal_title:European journal of ophthalmology
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journal_title:European journal of ophthalmology
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journal_title:European journal of ophthalmology
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journal_title:European journal of ophthalmology
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journal_title:European journal of ophthalmology
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journal_title:European journal of ophthalmology
pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:European journal of ophthalmology
pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:European journal of ophthalmology
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journal_title:European journal of ophthalmology
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更新日期:2013-09-01 00:00:00
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更新日期:2016-04-12 00:00:00