Visual outcomes and higher order aberrations following LASIK on eyes with low myopia and astigmatism

Agarwal, S; Thornell, E; Hodge, C; Sutton, G; Hughes, P

Visual outcomes and higher order aberrations following LASIK on eyes with low myopia and astigmatism

Agarwal, S Thornell, E Hodge, C

Sutton, G Hughes, P

Permalink

Publication Type:: Journal Article
Citation:: Open Ophthalmology Journal, 2018, 12 pp. 84 - 93
Issue Date:: 2018-01-01

Closed Access

	Filename	Description	Size
	TOOPHTJ-12-84.pdf	Published Version	892.47 kB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Agarwal, S	en_US
dc.contributor.author	Thornell, E	en_US
dc.contributor.author	Hodge, C https://orcid.org/0000-0002-0516-6486	en_US
dc.contributor.author	Sutton, G	en_US
dc.contributor.author	Hughes, P	en_US
dc.date.available	2018-05-14	en_US
dc.date.issued	2018-01-01	en_US
dc.identifier.citation	Open Ophthalmology Journal, 2018, 12 pp. 84 - 93	en_US
dc.identifier.uri	http://hdl.handle.net/10453/133938
dc.description.abstract	© 2018 Agarwal et al. Background: Laser-Assisted in situ Keratomileusis (LASIK) can induce corneal aberrations that can impact vision and patient satisfaction. Recent developments in laser technologies have helped minimise these aberrations. Objective: To assess the quality of vision and change in Higher-Order Aberrations (HOAs) following wavefront-optimized LASIK in low-myopic astigmatic patients. Methods: LASIK was performed on a total of 76 eyes in patients with myopia <4.0 D and cylinder <2.0 D using the WaveLight® EX500 excimer and FS200 femtosecond laser platform. Visual acuity, contrast sensitivity and HOAs were measured at 1 and 3 months postoperatively and compared to preoperative values. Subjective quality of vision was assessed pre-and postoperatively using a VF14 questionnaire. Results: Mean postoperative Spherical Equivalent (SE) was-0.09 ± 0.26 µm with 95% of patients within ± 0.5 D of attempted SE. Postoperative uncorrected distance visual acuity was 20/20 or better for 96% of patients. Contrast sensitivity increased against horizontal and vertical gratings at all spatial frequencies except for vertical gratings at 18 cycles/degree. Spherical aberration and total HOA increased by 0.085 µm and 0.13 µm respectively. The mean VF14 score increased from 89.2 ± 16.7% to 99 ± 1.4% postoperatively. Conclusion: LASIK performed using the WaveLight® EX500 excimer and WaveLight® FS200 laser platform provided improved contrast sensitivity and visual acuity with minimal introduction of HOAs, making it a suitable platform for low myopic astigmatic patients.	en_US
dc.relation.ispartof	Open Ophthalmology Journal	en_US
dc.relation.isbasedon	10.2174/1874364101812010084	en_US
dc.title	Visual outcomes and higher order aberrations following LASIK on eyes with low myopia and astigmatism	en_US
dc.type	Journal Article
utslib.citation.volume	12	en_US
utslib.for	0205 Optical Physics	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Graduate School of Health
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	12	en_US

Abstract:

© 2018 Agarwal et al. Background: Laser-Assisted in situ Keratomileusis (LASIK) can induce corneal aberrations that can impact vision and patient satisfaction. Recent developments in laser technologies have helped minimise these aberrations. Objective: To assess the quality of vision and change in Higher-Order Aberrations (HOAs) following wavefront-optimized LASIK in low-myopic astigmatic patients. Methods: LASIK was performed on a total of 76 eyes in patients with myopia <4.0 D and cylinder <2.0 D using the WaveLight® EX500 excimer and FS200 femtosecond laser platform. Visual acuity, contrast sensitivity and HOAs were measured at 1 and 3 months postoperatively and compared to preoperative values. Subjective quality of vision was assessed pre-and postoperatively using a VF14 questionnaire. Results: Mean postoperative Spherical Equivalent (SE) was-0.09 ± 0.26 µm with 95% of patients within ± 0.5 D of attempted SE. Postoperative uncorrected distance visual acuity was 20/20 or better for 96% of patients. Contrast sensitivity increased against horizontal and vertical gratings at all spatial frequencies except for vertical gratings at 18 cycles/degree. Spherical aberration and total HOA increased by 0.085 µm and 0.13 µm respectively. The mean VF14 score increased from 89.2 ± 16.7% to 99 ± 1.4% postoperatively. Conclusion: LASIK performed using the WaveLight® EX500 excimer and WaveLight® FS200 laser platform provided improved contrast sensitivity and visual acuity with minimal introduction of HOAs, making it a suitable platform for low myopic astigmatic patients.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/133938