Contralateral Eye-to-Eye Comparison of Wavefront-Guided and Wavefront-Optimized Photorefractive Keratectomy

He, Lingmin; Manche, Edward E.

doi:10.1001/jamaophthalmol.2014.3876

Cited by 30 publications

(17 citation statements)

References 41 publications

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“…Wavefront-optimized advanced surface ablation results compare favorably with those of LASIK. [1][2][3][4][5][6] Among the major drawbacks of surface ablation are immediate postoperative discomfort and slower visual acuity recovery; however, results appear to be comparable by 1 month after surgery. 1,2,7,8 Surface ablation induces a certain amount of corneal surface roughness due to the inherent spot size and other factors.…”

Section: O R I G I N a L A R T I C L Ementioning

confidence: 99%

Advanced Surface Ablation With a New Software for the Reduction of Ablation Irregularities

Vinciguerra¹,

Camesasca²,

Vinciguerra³

et al. 2017

J Refract Surg

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Section: O R I G I N a L A R T I C L Ementioning

confidence: 99%

Advanced Surface Ablation With a New Software for the Reduction of Ablation Irregularities

Vinciguerra¹,

Camesasca²,

Vinciguerra³

et al. 2017

J Refract Surg

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“…Glare, halos, haze, or starbursts can occur due to the generation of incidental HOAs after ablation of the cornea. Two treatment profiles, wavefront-optimized (WFO) and wavefront-guided (WFG), are widely employed to reduce the postoperative induction of HOAs [ 7 , 8 ]. Numerous studies have compared the clinical outcomes in WFO and WFG treatments [ 6 , 7 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Comparison between Wavefront-optimized and corneal Wavefront-guided Transepithelial photorefractive keratectomy in moderate to high astigmatism

Jun

Kang²,

Arba-Mosquera

et al. 2018

BMC Ophthalmol

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BackgroundTo compare the clinical outcomes of wavefront-optimized (WFO) transepithelial photorefractive keratectomy (trans-PRK) and corneal wavefront-guided (CWFG) trans-PRK for myopic eyes with moderate to high astigmatism.MethodsOne hundred ninety-six eyes (196 patients) with moderate to high astigmatism (≥ 1.75 D) treated with WFO or CWFG trans-PRK (101 and 95 eyes, respectively) were retrospectively registered. Safety, efficacy, predictability, vector analysis, and corneal aberrations were compared between groups preoperatively and at 6 months postoperatively.ResultsAt postoperative 6 months, the mean logMAR uncorrected distance visual acuity was similar in the WFO (− 0.07 ± 0.08) and CWFG (− 0.07 ± 0.07) groups. Safety, efficacy, and predictability of refractive and visual outcomes were also similar. The correction indices were 1.02 ± 0.14 and 1.03 ± 0.13 in the WFO and CWFG groups, respectively, with no significant difference. The absolute values of the angle of error were significantly higher in the WFO group (2.28 ± 2.44 vs. 1.40 ± 1.40; P = 0.002). Corneal total root mean square higher-order aberrations and corneal spherical aberrations increased postoperatively in both groups; however, the change was smaller in the CWFG group. Corneal coma showed a significant increase postoperatively only in the WFO group.ConclusionsWFO and CWFG trans-PRK are safe and effective for correcting moderate to high astigmatism. However, CWFG trans-PRK provides a more predictable astigmatism correction axis and fewer induced corneal aberrations.

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“…Also, in comparing visual outcomes following Visx Star S4 CustomVue WFG and Allegretto Wave Eye-Q 400 Hz wavefront optimized PRK, both techniques were similarly effective and safe, with better contrast visual acuity obtained with the WFG technique (27) . Another study detected an increase in HOA values postoperatively after both technique with significantly lower coma and trefoil aberrations and astigmatism in WFG group (28) . Contrast sensitivity was always a concern after any refractive procedures.…”

Section: Discussionmentioning

confidence: 90%

Corneal wavefront guided versus aberration free transepithelial photorefractive keratectomy in myopic patients with high pre-existing corneal higher order aberrations

Ellakwa

Zaki

Ashour

2019

Preprint

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Objectives:to compare the efficacy, safety and predictability of corneal wavefront guided (WFG) and aberration free ablation in single-step transepithelial photorefractive keratectomy (TransPRK) in myopic patients with high pre-existing corneal higher order aberrations (HOAs). Background: Corneal WFG and aberration free treatments have been proposed as methods to achieve better visual, refractive, and optical outcomes. Methods:Non-randomized controlled trialwas conducted in El-HekmaEye-LASIK center, Menoufia governorate, Egypt during the period from January 2017 to December 2017. TransPRK was performed to eligible myopic patients with or without astigmatism with corneal HOAs ≥ 0.35 µmat 6 mm diameter utilizing either optimized (aberration free) or corneal WFG patterns (SCHWIND eye-tech-solutions, Kleinostheim, Germany). Uncorrected distance visual acuity (UDVA), manifest and cycloplegic refractions, best spectacle corrected distance visual acuity (CDVA), thorough slit lamp examination and corneal topography were assessed and repeated six months postoperatively. Results: Six months postoperatively, 97.6% and 100% of patients achieved MRSE within ± 1D with 76.2% and 66.67% of patients achieved UDVA of ≥20/20 in aberration free and corneal WFG groups respectively. Both groups showed increase in spherical and total corneal HOAs, with no significant difference in corneal WFG (p=0.08, p=0.28 respectively) while significantly higher postoperatively in aberration free group (p<0.001, p=0.001 respectively). Coma and trefoil aberrations declined after corneal WFG technique, yet increased after aberration free one. Conclusions: both aberration free and corneal WFG TransPRK were safe, effective and predictable in treatment of myopia in patients with high pre-existing corneal HOAs at 6 mm diameter with better aberrometric outcomes in corneal WFG group.

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Contralateral Eye-to-Eye Comparison of Wavefront-Guided and Wavefront-Optimized Photorefractive Keratectomy

Cited by 30 publications

References 41 publications

Advanced Surface Ablation With a New Software for the Reduction of Ablation Irregularities

Advanced Surface Ablation With a New Software for the Reduction of Ablation Irregularities

Comparison between Wavefront-optimized and corneal Wavefront-guided Transepithelial photorefractive keratectomy in moderate to high astigmatism

Corneal wavefront guided versus aberration free transepithelial photorefractive keratectomy in myopic patients with high pre-existing corneal higher order aberrations

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