نتایج جستجو برای: corneal topography

تعداد نتایج: 55921  

2012
Ramez Barbara Hanna Garzozi Adel Barbara

Purpose: To evaluate the efficacy of the combined treatment of Intacs SK (Severe keratoconus) and corneal collagen crosslinking in the management of advanced keratoconus (KC). Setting: Private laser center, Haifa, Israel. Affiliated to Hadassah Hospital, Jerusalem. Methods: This is a retrospective study. Intacs SK were implanted using manual technique in eyes with moderate-tosevere keratoconus ...

Journal: :Cornea 2005
Marinos M Markomanolakis George D Kymionis Ioannis M Aslanides Nikolaos Astyrakakis Ioannis G Pallikaris

PURPOSE To describe lipid-induced specific videokeratographic (VKG) corneal changes and subsequent resolution after eyelid washing. METHODS VKG was performed with C-Scan corneal topography. In all patients an excessive meibomian gland lipid secretion was found with or without coexistent chronic posterior blepharitis. After the initial VKG, a meticulous cleaning of the lids with a mild alkali ...

2017
Ercüment Bozkurt Engin Bilge Ozgurhan Betul Ilkay Sezgin Akcay Tugba Kurt Yusuf Yildirim Zehra Karaagaç Günaydin Ahmet Demirok

Purpose. To report the visual, refractive, and corneal topography and wavefront aberration results of accelerated corneal cross-linking (CXL) during a 24-month follow-up. Methods. Forty-seven eyes underwent riboflavin-ultraviolet A-induced accelerated CXL treatment (30 mW/cm2 with a total dose of 7.2 joules/cm2). Uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA)...

2017
Majid Moshirfar Julio C Albarracin Jordan D Desautels Orry C Birdsong Steven H Linn Phillip C Hoopes

PURPOSE Four cases of corneal ectasia after small-incision lenticule extraction (SMILE) have been reported. In this review, we provide an overview of the published literature on corneal ectasia after SMILE and risk factors associated with this complication. METHODS Case reports were identified by a search of seven electronic databases for pertinent heading terms between 2011 and July 2017. We...

Journal: :Journal of refractive surgery 2009
Anastasios John Kanellopoulos

PURPOSE The safety and efficacy of corneal collagen cross-linking (CXL) and topography-guided photorefractive keratectomy (PRK) using a different sequence and timing were evaluated in consecutive keratoconus cases. METHODS This study included a total of 325 eyes with keratoconus. Eyes were divided into two groups. The first group (n=127 eyes) underwent CXL with subsequent topography-guided PR...

2016
Chang Rae Rho Min-Ji Kim Choun-Ki Joo

Purpose. To evaluate surgically induced astigmatism (SIA) and the average corneal power change in symmetric intrastromal corneal ring segment (ICRS) implantation. Methods. The study included 34 eyes of 34 keratoconus patients who underwent symmetric Intacs SK ICRS implantation. The corneal pocket incision meridian was the preoperative steep meridian. Corneal power data were obtained before and ...

Journal: :Vision Research 1995
P. Y. Santiago M. Assouline F. Ducoussau S. Bazin J. C. Ballion A. Mezraoui Y. Pouliquen

&t.&& All 670 subjects, age 18 to 25 y., from a single class were examined during the military duty incorporation pmcess in the French Armed Forces. Objective and mamfest refraction were determined with an autorefractometer and come.al topogra hy was assessed using a TMS-1 system. Data were analysed using 1 s descriptors of cornea1 powers distribution from the new TMS-1 statistical software and...

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