First clinical results with the femtosecond neodynium-glass laser in refractive surgery

Imola Ratkay-Traub, Istvan E. Ferincz, Tibor Juhasz, Ron M. Kurtz, Ronald R Krueger

Research output: Contribution to journalArticle

190 Citations (Scopus)

Abstract

PURPOSE: We evaluated four femtosecond laser intrastromal cutting procedures: creation of a corneal flap for laser in situ keratomileusis (LASIK), tunnel and entry cut for intracorneal ring, corneal flap and removable lens for keratomileusis, and intrastromal ablation for myopia and hyperopia. METHODS: A clinical trial using a femtosecond surgical laser (IntraLase Corporation) was performed in partially sighted eyes. Femto-LASIK treatment was performed on 46 eyes up to -14.00 D; 16 patients received intracorneal ring segments (Femto-ICRS); 5 patients each with one highly myopic eye had femtosecond laser keratomileusis (FLK), and 13 patients each with one myopic or hyperopic eye had intrastromal ablation (ISPRK). In Femto-LASIK, excimer laser ablation was done under the flap. In Femto-ICRS, ring segments were introduced into the laser-created channels. In femtosecond laser keratomileusis, a lens-shaped block of stroma was removed manually from under the flap. RESULTS: No difference was found between the results obtained with Femto-LASIK and a standard microkeratome. No refractive effects occurred when the created flap was not elevated. In cases of Femto-ICRS and conventional ICRS produced the same refractive results. With Femto-ICRS, no intraoperative complications occurred and visual acuity improved immediately after surgery. In femtosecond laser keratomileusis, high myopia was corrected without using excimer laser ablation; centralization of the treatment area was excellent. In intrastromal ablation, 1 to 2 hours after surgery the corneas were highly transparent; refractive results were stable. CONCLUSIONS: Femtosecond lasers can produce precise intrastromal cutting, offering significant safety and other advantages (no razor blades, corneal trauma, partial resections, or sterilization issues) over current techniques.

Original languageEnglish (US)
Pages (from-to)94-103
Number of pages10
JournalJournal of Refractive Surgery
Volume19
Issue number2
StatePublished - Mar 1 2003
Externally publishedYes

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Refractive Surgical Procedures
Glass
Lasers
Laser In Situ Keratomileusis
Excimer Lasers
Myopia
Laser Therapy
Lenses
Hyperopia
Intraoperative Complications
Cornea
Visual Acuity
Clinical Trials
Safety
Therapeutics

ASJC Scopus subject areas

  • Ophthalmology

Cite this

First clinical results with the femtosecond neodynium-glass laser in refractive surgery. / Ratkay-Traub, Imola; Ferincz, Istvan E.; Juhasz, Tibor; Kurtz, Ron M.; Krueger, Ronald R.

In: Journal of Refractive Surgery, Vol. 19, No. 2, 01.03.2003, p. 94-103.

Research output: Contribution to journalArticle

Ratkay-Traub, I, Ferincz, IE, Juhasz, T, Kurtz, RM & Krueger, RR 2003, 'First clinical results with the femtosecond neodynium-glass laser in refractive surgery', Journal of Refractive Surgery, vol. 19, no. 2, pp. 94-103.
Ratkay-Traub, Imola ; Ferincz, Istvan E. ; Juhasz, Tibor ; Kurtz, Ron M. ; Krueger, Ronald R. / First clinical results with the femtosecond neodynium-glass laser in refractive surgery. In: Journal of Refractive Surgery. 2003 ; Vol. 19, No. 2. pp. 94-103.
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