OBJECTIVE To describe the use of transepithelial phototherapeutic keratecomy for the long-term treatment of post-laser in situ keratomileusis (LASIK) flap macrostriae. METHOD We present the case of a 22 year old male with visual loss in the left eye due to chronic flap macrostriae that was treated with transepithelial PTK. RESULTS Striae and haze were no longer visible, with a significant i...

PURPOSE The worldwide prevalence of refractive errors (RE), which is a common cause of treatable visual impairment among children, varies widely. We assessed the prevalence of correctable visual impairment (uncorrected RE) in primary school children in Qassim, Saudi Arabia. METHODS A cross-sectional study was conducted in 21 primary schools. A total of 5176 children (mean age 9.5±1.8 years), ...

Purpose To evaluate the relationship between uncorrected visual acuity and refraction and binocular function using a vision screening protocol. Methods In total, 760 children (3-6 years old) who were enrolled in 4 nursery schools in Otawara, Japan, were recruited; a total of 1,520 eyes were examined. We assessed uncorrected near visual acuity, manifest refraction, stereopsis, and eye position...

BACKGROUND Five years ago, we presented 19 procedures employing two intrastromal purse-string sutures to treat hyperopic shift following radial keratotomy. Thirty-four additional procedures and longer follow-up are now presented detailing the task of rehabilitating these eyes. METHODS Fifty-three eyes of 53 radial keratotomy patients who were unhappy with their uncorrected vision and who were...

BACKGROUND A systematic method of performing radial keratotomy enhancements in undercorrected eyes may increase accuracy and predictability and decrease the number of procedures required. A consecutive series of 372 radial keratotomy procedures, including 110 eyes that received enhancements under a systematic protocol, was evaluated. METHODS Radial keratotomy was performed using the Reliable ...

BACKGROUND The near work and outdoor activity are the most important environmental risk factors for myopia. However, data from Chinese rural children are relatively rare and remain controversial. Therefore, the purpose of this study was to evaluate the relationship of both near work and outdoor activities with refractive error in rural children in China. METHODS In this cross-sectional study,...

Journal of Refractive Surgery Volume 16 March/April 2000 ABSTRACT PURPOSE: Photoastigmatic refractive keratectomy (PARK) was studied in a multi-center clinical trial. The Nidek EC-5000 excimer laser was evaluated for its effect on refraction, visual acuity, and safety measures as part of a U.S. Food and Drug Administration (FDA) regulated study. METHODS: Eight U.S. centers enrolled adults with ...

purpose: to evaluate residual refractive errors after cataract surgery and its determinant factors at farabi eye hospital, tehran. methods: simple random sampling was done among cataract surgery scheduled patients over a 4 year period (2003-2006). exclusion criteria were uveitis, previous intraocular surgery and ocular trauma. after applying the exclusion criteria, 423 patients were studied. le...

BACKGROUND To evaluate binocular visual outcome for near, intermediate and distance compared to monocular visual outcome at the same distances in patients implanted with a diffractive trifocal intraocular lens (IOL). METHODS The study comprised of 100 eyes of 50 patients that underwent bilateral refractive lens exchange or cataract surgery with implantation of a multifocal diffractive IOL (AT...

METHODS: Retrospective analysis of data from patients who underwent toric iris-fi xated pIOL (Artifl ex® and Artisan®) implantation in Centro Hospitalar Lisboa Central between 2009 and 2013. Th e main parameters evaluated were best corrected visual acuity (BCVA), uncorrected visual acuity (UCVA), manifest refraction, intraocular pressure (IOP), central endothelial cell count (ECC) and complicat...