Tear Film Surface Quality With Rigid and Soft Contact Lenses

Garima Tyagi; David Alonso-Caneiro; Michael Collins; Scott Read

doi:10.1097/ICL.0b013e31824da99c

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Tear Film Surface Quality With Rigid and Soft Contact Lenses

Journal article

Peer reviewed

Tear Film Surface Quality With Rigid and Soft Contact Lenses

Garima Tyagi, David Alonso-Caneiro, Michael Collins and Scott Read

Eye and Contact Lens, Vol.38(3), pp.171-178

2012

DOI: https://doi.org/10.1097/ICL.0b013e31824da99c

PMID: 22510586

Abstract

tear film surface quality

rigid contact lens

soft contact lens

dynamic high-speed videokeratoscopy

Objectives: The aim of this study was to measure tear film surface quality (TFSQ) using dynamic high-speed videokeratoscopy during short-term (8 hrs) use of rigid and soft contact lenses. Methods: A group of 14 subjects wore 3 different types of contact lenses on 3 different nonconsecutive days (order randomized) in 1 eye only. The subjects were screened to exclude those with dry eye. The lenses included a polymethyl methacrylate (PMMA) hard, a rigid gas permeable (RGP; Boston XO), and a soft silicone hydrogel lens. Three 30-second long high-speed videokeratoscopy recordings were taken with contact lenses in situ, in the morning and again after 8 hrs of contact lens wear, both in normal and suppressed blinking conditions. Recordings were also made on a baseline day with no contact lens wear. Results: The presence of a contact lens in the eye had a significant effect on the mean TFSQ in both natural and suppressed blinking conditions (P=0.001 and P=0.01, respectively, repeated-measures analysis of variance). The TFSQ was worse with all the lenses compared with no lens in the eye in the afternoon during both normal and suppressed blinking conditions (all P<0.05). In natural blinking conditions, the mean TFSQ for the PMMA and RGP lenses was significantly worse than the baseline day (no lens) for both morning and afternoon measures (P<0.05). Conclusions: This study shows that both rigid and soft contact lenses adversely affect the TFSQ in both natural and suppressed blinking conditions. No significant differences were found between the lens types and materials.

Details

Title: Tear Film Surface Quality With Rigid and Soft Contact Lenses
Authors: Garima Tyagi (Corresponding Author) - Queensland University of Technology
David Alonso-Caneiro (Author) - Queensland University of Technology
Michael Collins (Author) - Queensland University of Technology
Scott Read (Author) - Queensland University of Technology
Publication details: Eye and Contact Lens, Vol.38(3), pp.171-178
Publisher: Lippincott Williams & Wilkins
DOI: 10.1097/ICL.0b013e31824da99c
ISSN: 1542-233X
PMID: 22510586
Organisation Unit: School of Science, Technology and Engineering
Language: English
Record Identifier: 99973597002621
Output Type: Journal article