BACKGROUND To evaluate monocular and binocular visual outcomes for near, intermediate, and far distance in patients implanted with diffractive multifocal intraocular lenses (IOLs) with different add power contralaterally. METHODS This is a prospective contralateral study. Two diffractive multifocal IOLs with different added power were implanted bilaterally in twenty patients. TECNIS® ZKB00 (+...

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...

BACKGROUND To assess the prevalence of visual impairment and rate of wearing spectacles in schools for children of migrant workers in Shanghai, China. METHODS Children from grade 1 to 5 in schools for children of migrant workers were randomly chosen for ocular examinations. All children were screened for uncorrected visual acuity and presenting visual acuity. After screening, the children who...

CONTEXT The prevalence of visual impairment in the US public has not been surveyed nationally in several decades. OBJECTIVE To estimate the number of US individuals aged 12 years or older who have impaired distance vision due to uncorrected refractive error. DESIGN, SETTING, AND PARTICIPANTS The National Health and Nutrition Examination Survey (NHANES), using a multistage probability sampli...

Purpose: To evaluate the efficacy of corneal cross-linking on keratoconic eyes in the pediatric age group. Setting: Private laser center, Haifa, Israel, affiliated to Hadassah Hospital, Jerusalem. Methods: This is a retrospective study of 29 eyes of 20 children treated with corneal cross-linking with aim to arrest the progression of keratoconus. We preformed collagen corneal cross-linking using...

purpose : to evaluate the near visual performance of an accommodative intraocular lens (iol) tetraflex, in comparison to a standard monofocal foldable iol in cataract surgery. setting: eye research center , farabi eye hospital , department of ophthalmology, tehran university of medical sciences, iran . methods : forty six eyes of 23 patients with cataract underwent phacoemulsification and accom...

purpose : to compare visual quality in patients receiving alcon acrysof restor multifocal versus acrysof sa60at monofocal intraocular lenses (iol) methods : in this interventional study, patients with senile cataract undergoing surgery were enrolled. the age of the patients ranged between 40 and 85 years, and their potential preoperative vision was 20/30 or better. in all patients phacoemulsifi...