The Changes of Tear Status after Conventional and Wavefront-Guided IntraLASIK
- Author:
Say Kiang Foo
;
Sharanjeet-Kaur
;
Faudziah Abd Manan
;
Aloysius Joseph Low
- Publication Type:Journal Article
- Keywords:
laser, LASIK, ophthalmology, refractive surgery, side effects, tear
- From:Malaysian Journal of Medical Sciences
2011;18(2):32-39
- CountryMalaysia
- Language:English
-
Abstract:
Background: IntraLASIK is a LASIK surgery that involved IntraLase femtosecond laser for
the corneal flap creating. The objective of this research was to investigate and compare the changes
in tear status at 1 and 3 months after undergoing conventional IntraLASIK with Bausch & Lomb
PlanoScan (PS) algorithm, Bausch & Lomb Zyoptix Tissue Saving (ZTS) algorithm, and wavefrontguided
(WG) IntraLASIK with VISX CustomVue.
Methods: Tear status of 36 patients who were divided into 3 groups depending on the type
of IntraLASIK they underwent (PS, n = 13; ZTS, n = 9; WG, n = 14) was evaluated. Tear status was
determined by classifying the category of the thickness of pre-corneal tear lipid layer, non-invasive
tear break-up time, and tear meniscus height. Repeated measures analysis of variance (ANOVA) and
one way ANOVA were used for the statistical analyses.
Results: The category of the thickness of tear lipid layer, non-invasive tear break up time and
tear meniscus height were neither significantly changed after IntraLASIK for all groups nor showed
significant difference among groups at 1 and 3 months post-IntraLASIK (P > 0.05). Blinking rate and
palpebral aperture also had no significant changed after IntraLASIK.
Conclusion: Both conventional (PS and ZTS) and WG IntraLASIK did not affect tear status
up to 3 months post-IntraLASIK. WG IntraLASIK did not show superiority in preserving tear status
1 and 3 months post-surgery compared with conventional IntraLASIK.
- Full text:W020151022551278782339.pdf
