نتایج جستجو برای: laser in situ keratomileusis

تعداد نتایج: 17037666  

Journal: :Revista Brasileira De Oftalmologia 2021

The laser in situ keratomileusis (LASIK) is the most widely used refractory surgical method world with excellent results, but this not without risks. Post-LASIK ectasia a serious complication and characterized by progressive increase curvature thinning of cornea, resulting irregular astigmatism decreasing visual acuity. Its incidence current literature approximately 0.033%. main treatment for i...

Journal: :Journal of refractive surgery 1998
V Reviglio M L Rodriguez G S Picotti M Paradello J D Luna C P Juárez

Corneal infection after laser in situ keratomileusis (LASIK) is rare. However, surgical trauma or breakdown of epithelium increases the risk of surface infection. We present the case of a 45 year old woman who developed keratitis due to Mycobacterium chelonae 1 month after LASIK with the Mini-Laser Sight 2000 excimer laser. After an initial improvement following antibiotic therapy the infection...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1390

any change in the refractive index of a laser active medium can lead to serious degradation of beam quality, laser beam modes, laser performance and variation in the intensity distribution. alteration in the refractive index of laser active medium is especially notable in high power lasers. it is clear that in the laser beam production, the pumping agent induces a great amount of heat which...

2013
Arthur B Cummings Gabrielle E Kelly

PURPOSE To compare the safety, efficacy, and predictability of laser in situ keratomileusis treatments at 1 year postprocedure using a novel geometric ray tracing algorithm with outcomes of treatments using wavefront-optimized, wavefront-guided, and topography-guided ablation profiles of an excimer laser (WaveLight GmbH, Erlangen, Germany; Alcon Laboratories, Fort Worth, TX, USA). SETTING Wel...

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