Abstract
Purpose
To examine the variation in intraocular pressure (IOP) during the first six months
of scleral lens wear.
Methods
Thirty-two neophyte scleral lens wearers were recruited and IOP was measured using
Goldman applanation tonometry before, and after 1 and 6 months of scleral lens wear
(following lens removal). All scleral lenses were designed based on scleral topography
or an impression of the ocular surface. Central corneal thickness and the central
post-lens fluid reservoir thickness were quantified using optical coherence tomography.
Results
Post-lens removal IOP displayed an increasing trend after 1 and 6 months of lens wear,
but the magnitude of change was not clinically or statistically significant using
several repeated measures analyses to account for sporadic missing longitudinal data
(mean increase of 1 mmHg or less, p > 0.05). Central corneal thickness and the central post-lens fluid reservoir remained
stable throughout the first six months of lens wear.
Conclusion
IOP measured following lens removal did not vary significantly during the first 6
months of lens wear in scleral lens neophytes. Further research is required to determine
if IOP varies during lens wear, following lens removal, or after longer-term lens
wear due to suction forces or tissue compression beneath the landing zone.
Keywords
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Article info
Publication history
Published online: June 02, 2020
Accepted:
May 20,
2020
Received in revised form:
May 15,
2020
Received:
April 1,
2020
Identification
Copyright
© 2020 British Contact Lens Association. Published by Elsevier Ltd. All rights reserved.
