Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/31429
Title: Corneal volume measures for monitoring contact lens induced corneal swelling : a pilot study
Authors: Lam, AKC 
Wong, YZ
Cheng, SY
Keywords: Corneal swelling
Corneal volume
Pentacam
Issue Date: 2011
Publisher: Wiley-Blackwell
Source: Clinical and experimental optometry, 2011, v. 94, no. 1, p. 93-97 How to cite?
Journal: Clinical and Experimental Optometry 
Abstract: Background: This study investigated the use of corneal volume to monitor the corneal swelling response induced by wearing high plus power contact lenses.Methods: Twelve young non-contact lens wearers were recruited with one eye fitted with a soft contact lens (Polymacon material, 38.6 per cent water, Dk of 9 and 0.27 mm centre thickness) and the fellow eye served as control. The treated eye was patched for two hours leaving the control eye uncovered. Central corneal thickness (CCT) was measured with non-contact specular microscopy and corneal volumes (at three, five and 10 mm zones) were measured with a corneal topographer (Pentacam, Oculus Inc, Germany), before eye patching as well as immediately after and every 20 minutes for 100 minutes.Results: Subjects had similar CCT and corneal volumes between the two eyes before treatment. The treatment eyes showed a mean corneal swelling of 8.1 per cent immediately after lens removal. Corneal volume was significantly increased at the three (mean swelling of 5.9 per cent), five (5.6 per cent) and 10 millimetre (3.3 per cent) zones. It took 20 minutes for the corneal volume at the 10 mm zone to return to baseline but required 60 minutes for the three and five millimetre zones to return to the baseline level. The central corneal thickness was still significantly thicker 80 minutes after patching.Conclusion: Corneal volume could be a useful parameter to monitor corneal change when an event affects the entire cornea. Corneal volume combined with central corneal thickness could give more comprehensive information to monitor central corneal swelling.
URI: http://hdl.handle.net/10397/31429
DOI: 10.1111/j.1444-0938.2010.00517.x
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

5
Last Week
0
Last month
0
Citations as of Feb 23, 2017

WEB OF SCIENCETM
Citations

2
Last Week
0
Last month
0
Citations as of Feb 22, 2017

Page view(s)

19
Last Week
0
Last month
Checked on Feb 19, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.