Femtosecond near-infrared lasers are widely used for a number of ophthalmic procedures, with flap cutting in the laser-assisted in situ keratomileusis (LASIK) surgery being the most frequent one. At the same time, lasers of this type, equipped with harmonic generators, have been shown to deliver enough ultraviolet (UV) power for the second stage of the LASIK procedure, the stromal ablation. How...

We read with great interest the article by Wallau and Campos, who compared the 1-year outcome of photorefractive keratectomy (PRK) with mitomycin C (MMC) and laser in situ keratomileusis (LASIK) in a bilateral randomised prospective clinical trial. The authors concluded that Wavefrontguided PRK with 0.002% MMC is more effective than wavefront-guided LASIK for correction of moderate myopia, whic...

PURPOSE To test the hypothesis that (1) there are quantitative differences in the cellular responses in the corneal stroma after photorefractive keratectomy (PRK) for low myopia compared to high myopia and (2) there are both qualitative and quantitative differences in the cellular responses in the corneal stroma after PRK for high myopia and laser in situ keratomileusis (LASIK) for high myopia....

A thirty-nine year old man was referred to our institute due to progressive decreased visual acuity five years after bilateral Laser in situ Keratomileusis (LASIK). Topography revealed signs of post - LASIK ectasia. Patients' left eye was treated with simultaneous Topography Guided Photorefractive Keratectomy (PRK) followed by Corneal Collagen Cross Linking (CXL). Twelve months after the combin...

Greater corneal biomechanical stability has been demonstrated following photorefractive keratectomy (PRK) compared with traditional microkeratome laser-assisted in situ keratomileusis (LASIK). Thin LASIK flaps exhibit biomechanical properties similar to PRK but with the advantage of no haze formation or pain. These findings suggest that thin flaps created with consistent thickness across the co...

BACKGROUND To study the effect of prophylactic application of mitomycin-C on haze formation in photorefractive keratectomy (PRK) for high myopia. METHODS Fifty-four eyes of 28 myopic patients were enrolled in this prospective study. All eyes were operated by PRK followed by 0.02% mitomycin-C application for two minutes and washed with 20 ml normal saline afterwards. All eyes were examined tho...

PURPOSE To compare the results of laser in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK) for myopia using a mixed-effects model. METHODS This comparative retrospective study was conducted in 1,127 eyes of 579 patients after LASIK and 270 eyes of 144 patients after PRK who had two or more postoperative follow-ups after 3 months. Uncorrected visual acuity (UCVA), best specta...

Purpose. To compare the clinical and confocal microscopic results of transepithelial PRK versus LASEK for correction of myopia. Materials and Methods. Twelve patients with myopia received transepithelial PRK in one eye and LASEK in the other. In transepithelial PRK-treated eyes, the corneal epithelium was removed with 40 microns of excimer laser ablation and in LASEK-treated eyes with 25-second...

PURPOSE To compare refractive outcome, subepithelial haze, and pain after epithelial laser in situ keratomileusis (epi-LASIK) and photorefractive keratectomy (PRK). METHODS In this prospective, randomized study, 32 eyes of 16 patients were treated for myopia with epi-LASIK (epi-LASIK group) in one eye and PRK in the fellow eye (PRK group). All patients underwent ablation using the NIDEK EC-50...

The leading topic of this particular paper is dedicated to available surgical options for refractive eye disorders treatment including surgery of cornea and intraocular surgery. Corneal Surgery includes laser refractive surgery - LASIK (Laser-Assisted In Situ Keratomileusis), FemtoLASIK (Femtosecond laser-assisted LASIK), PRK (Photorefractive keratectomy). This article describes relevant princi...