The Effect of Dehydration and Fasting on Corneal Biomechanical Properties and Intraocular Pressure

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dc.contributor.authorOltulu, Refik
dc.contributor.authorSatirtav, Gunhal
dc.contributor.authorErsan, Ismail
dc.contributor.authorSoylu, Erkan
dc.contributor.authorOkka, Mehmet
dc.contributor.authorZengin, Nazmi
dc.date.accessioned2024-02-23T14:21:10Z
dc.date.available2024-02-23T14:21:10Z
dc.date.issued2016
dc.departmentNEÜen_US
dc.description.abstractPurpose: To evaluate the changes in corneal biomechanical properties and intraocular pressure (IOP) during fasting period in healthy subjects. Methods: Seventy-two eyes of 72 fasting subjects (study group), and 62 eyes of 62 nonfasting subjects (control group) were enrolled in this prospective study undertaken at a single university hospital. All subjects underwent complete ophthalmologic examination including ocular biomechanical evaluation with ocular response analyzer. Ocular response analyzer measurement was performed on the right eyes of the subjects between 5.00 and 6.00 PM after approximately 14 hr of fasting for the study group and after a nonfasting period for the control group. The corneal hysteresis, corneal resistance factor, mean corneal compensated IOP (IOPcc), and Goldmann-correlated IOP (IOPg) values were measured with a patented dynamic bidirectional applanation process. Results: Goldmann-correlated IOP and IOPcc measurements in the study group and the control group were found as 13.8 +/- 2.8 mm Hg, 14.6 +/- 2.6 mm Hg and 16.3 +/- 2.2 mm Hg, 15.7 +/- 2.4 mm Hg, respectively. There was statistically significant difference within the two groups in IOPg and IOPcc (P < 0.001). In addition, corneal hysteresis and corneal resistance factor significantly decreased in study group compared with control group (P < 0.001, P = 0.012, respectively). Conclusion: Prolonged fasting causes a significant decrease in IOPg, IOPcc, corneal hysteresis, and corneal resistance factor in healthy subjects, altering the biomechanical properties of the cornea.en_US
dc.identifier.doi10.1097/ICL.0000000000000220
dc.identifier.endpage394en_US
dc.identifier.issn1542-2321
dc.identifier.issn1542-233X
dc.identifier.issue6en_US
dc.identifier.pmid26657661en_US
dc.identifier.scopus2-s2.0-84949595581en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage392en_US
dc.identifier.urihttps://doi.org/10.1097/ICL.0000000000000220
dc.identifier.urihttps://hdl.handle.net/20.500.12452/13459
dc.identifier.volume42en_US
dc.identifier.wosWOS:000387490000011en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherLippincott Williams & Wilkinsen_US
dc.relation.ispartofEye & Contact Lens-Science And Clinical Practiceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCorneal Biomechanicsen_US
dc.subjectOcular Response Analyzeren_US
dc.subjectRamadan Monthen_US
dc.subjectFastingen_US
dc.titleThe Effect of Dehydration and Fasting on Corneal Biomechanical Properties and Intraocular Pressureen_US
dc.typeArticleen_US

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