Single versus double femtosecond laser pass for incomplete laser in situ keratomileusis flap in contralateral eyes: Visual and optical outcomes

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• 作者：Gonzalo Muñ ; oz MD ; PhD ; FEBO  ; ;   ; ^{gon.munoz@ono.com} ; Cé ; sar Albarr&#225 ; n-Diego MSc ; Teresa Ferrer-Blasco PhD ; Jaime Javaloy MD ; PhD ; Santiago Garcí ; a-L&#225 ; zaro MSc[Author vitae]
• 刊名：Journal of Cataract and Refractive Surgery
• 出版年：2012
• 出版时间：January 2012
• 年：2012
• 卷：38
• 期：1
• 页码：8-15
• 全文大小：670 K

文摘

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class=""h4"">Purpose

To evaluate visual acuity, refractive outcomes, and anterior corneal higher-order aberrations (HOAs) after myopic laser in situ keratomileusis (LASIK) with uneventful single femtosecond laser pass versus double pass performed for intraoperative suction loss.

class=""h4"">Setting

Private refractive surgery center, Valencia, Spain.

class=""h4"">Design

Cohort study.

class=""h4"">Methods

After the LASIK flap was created with a single pass of an Intralase femtosecond laser in?1 eye and a double pass in the fellow eye, the ablation was performed with a Visx S2 laser. At 12 months, the refraction, uncorrected (UDVA) and corrected (CDVA) distance visual acuities, and anterior corneal HOAs were measured with 4.0 mm and 6.0 mm pupils.

class=""h4"">Results

The study enrolled 42 eyes (21 patients). Twelve months postoperatively, there were no statistically significant differences in any parameter studied including residual spherical equivalent (mean ?.05 diopter [D] ¡À 0.25 [SD] single pass; ?.03 ¡À 0.19 D double pass; P=.75), UDVA (mean 0.008 ¡À 0.057 logMAR single pass; 0.011 ¡À 0.046 logMAR double pass; P=.89), CDVA (mean ?.010 ¡À 0.040 logMAR single pass; ?.007 ¡À 0.037 logMAR double pass; P=.74), or anterior corneal HOAs. No eye lost 1 line of CDVA.

class=""h4"">Conclusions

Visual acuity, refractive outcomes, and anterior corneal HOAs were comparable between eyes after uneventful femtosecond laser single pass or double pass after suction loss affecting the pupillary area. A new femtosecond laser pass performed immediately after incomplete flap due to intraoperative suction loss provided good visual and optical outcomes.

class=""h4"">Financial Disclosure

No author has a financial or proprietary interest in any material or method mentioned.