Wavefront-guided versus wavefront-optimized laser in situ keratomileusis: Contralateral comparative study

Padmanabhan, Prema; Mrochen, Michael; Basuthkar, Subam; Vaidehi, V.; Roy, Jenny

doi:10.1016/j.jcrs.2007.10.028

Cited by 100 publications

(57 citation statements)

References 36 publications

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“…Our safety results are consistent with those of others, who report a good safety profile with wavefront-optimized laser ablations. [15][16][17]20 To our knowledge, no study reported a loss of 2 or more lines of Snellen visual acuity. However, more attention should be paid to reporting changes in Snellen visual acuity lines, as recommended by Reinstein and Waring 21 and Waring 22 and further noted by Fares et al 18 in their metaanalysis.…”

Section: Discussionmentioning

confidence: 99%

Wavefront-optimized excimer laser in situ keratomileusis for myopia and myopic astigmatism: Refractive outcomes and corneal densitometry

Fares

Otri

Al-Aqaba

et al. 2012

Journal of Cataract and Refractive Surgery

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Section: Discussionmentioning

confidence: 99%

Wavefront-optimized excimer laser in situ keratomileusis for myopia and myopic astigmatism: Refractive outcomes and corneal densitometry

Fares

Otri

Al-Aqaba

et al. 2012

Journal of Cataract and Refractive Surgery

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“…They reported a trend towards slightly better performance of wavefront-guided versus wavefront-optimized surgery but no significant differences were noted in the majority of visual and aberration measures. 9 An important qualifier was that their wavefront analysis diameter was 7.0 mm and they state that the biggest differences in measurement occurred in the 6.5-7.5 mm zone. This is unlikely to affect patients with smaller pupils.…”

Section: Discussionmentioning

confidence: 99%

Refractive Surgery Outcomes Comparison—All Wavefront-guided Versus a Decision Tree for Selecting Wavefront-guided or Wavefront-optimized

Stonecipher¹,

Potvin²,

Meyer³

et al. 2012

US Ophthalmic Review

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SurgeryIt has been almost 10 years since the first wavefront-guided laser refractive surgery procedure was approved in the US. beneficial effect is to be realized. 5 The study conducted to obtain the US Food and Drug Administration (FDA) label for wavefront-optimized AbstractThe purpose of this article is to compare refractive outcomes based on all wavefront-guided procedures versus a decision tree designed to assist with the selection of wavefront-guided or wavefront-optimized procedures. The setting was the The Laser Center, Greensboro. Twenty subjects were treated with a VISX CustomVue™ wavefront-guided refractive procedure in one eye and a WaveLight Allegretto procedure (wavefront-guided or optimized) in the contralateral eye. A decision tree was used to decide whether a wavefront-guided or wavefront-optimized procedure would be performed with the WaveLight system. The CustomVue eye was chosen at random. Visual acuity and refractive error were recorded pre-operatively and post-operatively. Subjective post-operative data included patient reported eye preference and post-operative glare and halos. The results were that one subject was lost to follow-up, leaving 19 subjects for analysis at three months. Of those subjects with data, 12 received wavefront-optimized treatment while seven subjects received a wavefront-guided treatment with the WaveLight laser. There were no significant differences in uncorrected visual acuity between the VISX and Wavelight groups at the one-day or six-month visits. At three months, 56 % of patients indicated no preference, with the remaining 44 % indicating a preference for the WaveLight-treated eye (p<0.05). The patient reported outcomes showed a similar incidence of post-operative glare and halos reported between the two treatments. Results with the Allegretto Wave Eye-Q laser, using a decision tree to determine whether a wavefront-optimized or a wavefront-guided treatment would be performed, were equivalent to those achieved with the VISX Star S4 wavefront-guided procedure.

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“…Wavefrontoptimized ablations apply a precalculated spherical aberration treatment to produce an aspheric ablation profile. 29 An important factor, which accounts for the increase in spherical aberration, is the loss in ablation energy due to the angle of incidence of pulses in the periphery (ie, the cosine effect, leading to an oval beam of reduced energy on the peripherally sloping cornea). The wavefront-optimized laser profile compensates for this effect by increasing the pulse energy in the periphery.…”

Section: Other Ablation Profilesmentioning

confidence: 99%

Applications of wavefront technology

Mello

Rocha

Santhiago

et al. 2012

Journal of Cataract and Refractive Surgery

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This review of wavefront technology looks at 2 major aspects. The first is the basics and principles of the optics of the eye, how to decompose the wavefront in a more adequate way for interpretation, and how these aberrations affect the visual acuity. It also addresses the diversity and complexity of wavefront sensors; how these devices transform the principles into clinically useful data, with the advantages and limitations of each system. The second major aspect is the clinical uses of the technology: wavefront-guided and newer and enhanced profiles related to wavefront as well as the limitations of the technology. Finally, recent innovations made possible by wavefront technology that are not limited to refractive surgery are reviewed.

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Wavefront-guided versus wavefront-optimized laser in situ keratomileusis: Contralateral comparative study

Abstract: Although both wavefront-guided and wavefront-optimized LASIK gave excellent refractive correction results, the former induced less higher-order aberrations and was associated with better contrast sensitivity.

Cited by 100 publications

References 36 publications

Wavefront-optimized excimer laser in situ keratomileusis for myopia and myopic astigmatism: Refractive outcomes and corneal densitometry

Wavefront-optimized excimer laser in situ keratomileusis for myopia and myopic astigmatism: Refractive outcomes and corneal densitometry

Refractive Surgery Outcomes Comparison—All Wavefront-guided Versus a Decision Tree for Selecting Wavefront-guided or Wavefront-optimized

Applications of wavefront technology

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