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AIM To determine the prevalence of refractive errors among schoolchildren in urban and rural areas of Dezful County, Iran. METHODS In a cross-sectional study, using random cluster sampling, 5721 Dezful schoolchildren were selected from 39 clusters. The participants in the study totalled 5544; 3673 elementary and middle school students and 1871 high school(More)
OBJECTIVE To compare the results of femtosecond-assisted laser in situ keratomileusis (femto-LASIK) and photorefractive keratectomy with mitomycin C (PRK-MMC) for the correction of myopia more than 7.0 diopters (D). METHODS In this comparative nonrandomized trial, 60 eyes (30 eyes in each group) were enrolled. Patients were tested for uncorrected distance(More)
PURPOSE To compare the outcomes of free conjunctival autograft (CAU) versus conjunctival-limbal autograft (CLAU) in the prevention of recurrence after pterygium surgery with adjunctive mitomycin C application in patients with primary or recurrent pterygia. DESIGN Prospective, randomized study. PARTICIPANTS AND CONTROLS Eighty-seven eyes of 86 patients(More)
PURPOSE To determine the distribution of corneal thickness at 6 different points in an Iranian population and find any possible relationship between the thickness values and some independent variables. METHODS As part of the "Tehran Eye Study," 410 people (800 eyes) aged 14 years and older, residing in the first 4 municipality areas of Tehran, were(More)
PURPOSE To determine the distribution of central and peripheral corneal thickness values and its determinants in an Iranian population. METHODS This population-based study was conducted between 2009 and 2010 in Shahroud, with a response rate of 82.2%. Here in, we present the data on central and peripheral corneal thickness in 3890 participants of the(More)
PURPOSE To compare the 6-month results of accelerated and standard collagen crosslinking (CXL) treatment of progressive keratoconus. SETTING Noor Eye Hospital, Tehran, Iran. DESIGN Prospective randomized clinical trial. METHODS Two groups of eyes (intervention and control) received corneal collagen crosslinking (CXL) treatment. The intervention group(More)
PURPOSE To determine the normal range of contrast sensitivity and its determinants through a population-based study in Shahroud, in northern Iran. DESIGN Population-based cross-sectional study. PARTICIPANTS Using random cluster sampling in Shahroud, 6311 people between 40 and 64 years of age were sampled; 5190 (82.24%) responded, and 965 participants(More)
PURPOSE To compare the postoperative conjunctival inflammation around the surgical site after pterygium surgery using either amniotic membrane transplantation (AMT) or free conjunctival autograft. DESIGN Prospective, randomized, interventional study. METHODS Forty-two eyes of 42 patients with primary pterygium underwent surgical excision followed by(More)
The authors assessed the role of economic inequality in visual impairment and decomposed the gap between high and low income groups. Study data were extracted from the first phase of the Shahroud Eye Cohort Study, performed in 2009, with 5,190 participants aged between 40 and 64 years. The participants were divided into low, medium, and high economic groups(More)
PURPOSE To compare with confocal microscopy the changes in stromal keratocyte density and endothelial cell count due to photorefractive keratectomy (PRK) and LASIK. METHODS In this prospective study, 32 eyes (16 myopic patients) were examined with the NIDEK Confoscan 3 confocal microscope before and 6 months after PRK and LASIK. The preoperative mean(More)