Details

Autor(en) / Beteiligte

• Ang, Marcus, FRCS(Ed)
• Mehta, Jodhbir S., FRCOph
• Rosman, Mohamad, FRCS(Ed)
• Li, Lim, FRCS(Ed)
• Koh, Jane C.W., Adv. Dip. Statistics
• Htoon, Hla M., PhD
• Tan, Donald, FRCOph
• Chan, Cordelia, FRCS(Ed)

Titel

Visual outcomes comparison of 2 femtosecond laser platforms for laser in situ keratomileusis

Ist Teil von

• Journal of cataract and refractive surgery, 2013-11, Vol.39 (11), p.1647-1652

Ort / Verlag

United States: Elsevier Inc

Erscheinungsjahr

2013

Quelle

MEDLINE

Beschreibungen/Notizen

• Purpose To compare the efficacy, predictability, and safety outcomes of 2 femtosecond laser platforms for flap creation during laser in situ keratomileusis (LASIK) for myopia and myopic astigmatism. Setting Singapore National Eye Centre, Singapore. Design Retrospective case review. Methods In this single-center multisurgeon study, patients had LASIK with flaps created using a Visumax 500 kHz or Intralase 60 kHz femtosecond laser system. Ablation was performed with the Wavelight Allegretto Eye-Q 400 Hz excimer laser in all patients. Preoperative and 3-month postoperative manifest refraction, attempted treatment spherical equivalent (SE), visual acuity, and complications were compared. Results The 500 kHz femtosecond laser group comprised 381 patients (381 eyes) and the 60 kHz femtosecond laser group, 362 patients (362 eyes). Three months postoperatively, the uncorrected distance visual acuity was 20/40 or better in 99.1% of eyes in the 60 kHz laser group and 99.4% of eyes in the 500 kHz laser group ( P =.678). Regarding predictability, 98.6% of eyes and 97.4% of eyes, respectively, were within ±1.0 diopter of the attempted SE correction postoperatively ( P =.228). The safety index was similar in the 60 kHz laser group and the 500 kHz laser group (mean 1.06 ± 0.16 [SD] versus 1.05 ± 0.14) ( P =.321). Conclusion The safety, predictability, and efficacy profiles of the 500 kHz femtosecond platform for LASIK were excellent and comparable to those of the 60 kHz platform. Financial Disclosure No author has a financial or proprietary interest in any material or method mentioned.