Does severity of dermatochalasis in aging affect corneal biomechanical properties?
Authors Atalay K, Gurez C, Kirgiz A, Cabuk K
Received 20 January 2016
Accepted for publication 8 March 2016
Published 17 May 2016 Volume 2016:11 Pages 659—664
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Colin Mak
Peer reviewer comments 3
Editor who approved publication: Dr Richard Walker
Kurşat Atalay, Ceren Gurez, Ahmet Kirgiz, Kubra Serefoglu Cabuk
Department of Ophthalmology, Bagcilar Training and Research Hospital, Istanbul, Turkey
Purpose: The aim of this study was to investigate the possibility of a relationship between corneal biomechanical properties and different grades of dermatochalasis.
Patients and methods: Patients were assigned to four groups according to the severity of their dermatochalasis: normal (Group 1), mild (Group 2), moderate (Group 3), and severe (Group 4). An Ocular Response Analyzer device was used to measure corneal hysteresis (CH), corneal resistance factor (CRF), and corneal-compensated intraocular pressure (IOPcc).
Results: We found no significant differences in the mean values of the CH, CRF, and IOPcc of all groups (P=0.75, P=0.93, and P=0.11, respectively). However, CH and IOPcc were negatively correlated in Group 1, Group 2, and Group 3 patients (P=0.013, r=−0.49; P=0.015, r=−0.52; and P=0.011, r=−0.47, respectively), but this correlation was not apparent in the Group 4 patients (P=0.57, r=0.12). CRF and IOPcc were correlated, but only in Group 4 (P=0.001, r=0.66).
Conclusion: Severe dermatochalasis was associated with altered corneal biomechanical properties. Some of the important visual consequences of dermatochalasis and related diseases (such as floppy eyelid syndrome) can be understood by considering corneal biomechanical alterations.
Keywords: cornea, dermatochalasis, corneal hysteresis, corneal resistance factor, corneal biomechanical properties
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