نتایج جستجو برای: laser in situ

تعداد نتایج: 17037658  

Journal: :journal of current ophthalmology 0
jing zhu ji-feng yu gai-ping du mei ge yi-fei huang yu-li pi

purpose : to investigate the sensations experienced by chinese patients during refractive surgery including the laser in situ keratomileusis (lasik), epi-lasik, and sub-bowman keratomileusis (sbk) techniques. a prospective, randomized, and self-matched clinical study was conducted. methods : the participants included 44 men and 58 women aged 16 to 47 years old (mean 24.3±0.6 years) who underwen...

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...

Journal: :journal of current ophthalmology 0
علیرضا اشتری alireza ashtari حسن رزمجو hassan razmju امین مسجدی amin masjedi علیرضا زندی alireza zandi مهدی توکلی mehdi tavakoli شیوا رقایی shiva roghaei اکرم ریسمانچیان

purpose : this study was planned to evaluate the efficacy, safety and complication of photorefractive keratectomy (prk) as a retreatment of residual myopia after previous laser in situ keratomileusis (lasik). methods : in this descriptive study in ophthalmology ward, feiz hospital, isfahan university of medical sciences, iran, with the consideration of inclusion and exclusion criteria, 170 eyes...

Journal: :بینا 0
حمید نوروزی h norouzi تهران- خیابان شهید مدنی- بیمارستان امام حسین (ع) حسین محمدربیع h mohammad rabi تهران- خیابان شهید مدنی- بیمارستان امام حسین (ع) محمد محسنی بدل آبادی m mohseni

purpose: to evaluate and compare tear secretion and tear film instability following laser in situ keratomileusis (lasik) and laser assisted subepithelial keratectomy (lasek). methods: in a randomized clinical trial, 30 eyes of 15 patients underwent lasik and 30 eyes of 15 patients underwent lasek to correct myopia. tear secretion and tear film instability were tested preoperatively, 2 and 6 wee...

Journal: :journal of current ophthalmology 0
حسن هاشمی hassan hashemi مهرداد محمدپور mehrdad mohammadpour

purpose : to describe a case of successful laser in situ keratomileusis (lasik) retreatment over a previous lasik surgery after 11 years case report : the patient had his first lasik for the correction of -2.25 -1.75×90° and -2.25 -1.00×90° in the right and left eye, respectively. eleven years later, the refraction in the right eye was plano -3.25×80° and he was scheduled for an enhancement pro...

Journal: :journal of current ophthalmology 0
محمدناصر هاشمیان mohammad-naser hashemian محمد سلیمانی mohammad soleimani ساسان مقیمی sasan moghimi فیروزه رحیمی firouzeh rahimi دکتر محمدیاسر کیارودی mohammad-yaser kiarudi

purpose: to report occurrence, management, and outcome of late-onset traumatic dislocation of laser in situ keratomileusis (lasik) flaps case report: we report a patient with late-onset lasik corneal flap dislocation after blunt ocular trauma occurring four years after surgery. an ultrasound biomicroscopy (ubm) was performed to view the status of flap and determination of flap thickness. result...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده پزشکی 1390

nitric oxide (no) is a small molecule synthesized by most of mammalian cells with diverse biological activities including vasodilatation, host defense and wound healing. impaired wound healing is a common occurrence among diabetics and patients receiving glucocorticoid therapy. on the other hand the application of laser in biomedical area have been increased. thus, the current studies were desi...

Journal: :journal of current ophthalmology 0
حسن هاشمی hassan hashemi محسن تبریزی mohsen tabrizi بیژن رضوان bijan rezvan

purpose : to assess the outcomes of laser in situ keratomileusis (lasik) in patients with multiple sclerosis (ms) methods : 15 eyes of 8 patients with ms (2 men and 6 women) who referred for myopia treatment (with or without astigmatism) were undergone lasik. after refractive and visual acuity examinations, topographic and pachymetry screening, intraocular pressure (iop) measurement, biomicrosc...

Journal: :journal of lasers in medical sciences 0
ali mostafaie iranian center for evidence based medicine, tabriz university of medical sciences, tabriz, iran alireza mahboub ahari tehran university of medical sciences, tehran, iran fatemeh sadeghi ghyassi iranian center for evidence based medicine, tabriz university of medical sciences, tabriz, iran sakineh hajebrahimi iranian center for evidence based medicine, tabriz university of medical sciences, tabriz, iran mahmoud yousefi tehran university of medical sciences, tehran, iran

introduction: to compare the efficacy and cost-effectiveness of femtosecond laser versus mechanical microkeratome corneal flap creation in correction of refractive errors. methods: i this review, a comprehensive search of medline, scopus, cochrane, trip database, supplemented by hta and economic databases was performed. we searched for randomized controlled trials (rcts) of femtosecond laser wh...

Journal: :journal of current ophthalmology 0
جواد عموزاده javad amoozadeh سهیل علی اکبری soheil aliakbari امیرهوشنگ بهشت نژاد amir-houshang behesht-nejad محمدامین سیدیان mohammad-amin seyedian بیژن رضوان bijan rezvan حسن هاشمی hassan hashemi

purpose : to assess and to compare stromal and endothelial changes at the cellular level in patients who had photorefractive keratectomy (prk) and laser in situ keratomileusis (lasik) using in vivo confocal microscopy methods : in this semiexperimental study, 32 eyes of 16 patients (4 males and 12 females) with low to moderate myopia [-1.00 to -4.50 diopters (d)] or low to moderate myopic astig...

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