Background Measuring and understanding main determinants of length of stay (LOS) in emergency departments (EDs) is critical from an operations perspective, since LOS is one of the main performance indicators of ED operations. Therefore, this study analyzes both the main and interaction effects of four widely-used independent determinants of ED-LOS.   Methods The analysis...

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...

purpose: to evaluate the effect of  patch therapy on visual acuity in adults with ametropic amblyopia. methods: this randomized clinical trial was performed on 66 patients with unilateral ametropic amblyopia aged 9 to 35 years reffered to a clinic in shahroud. the patients were randomly assigned to two groups. in the treatment group, based on the visual acuity of the amblyopic eye, 3-6 hours da...

Can vision tests predict subsequent loss of acuity? The association between performance on several low contrast spatial vision measures, glare recovery, color discrimination, flicker sensitivity, stereopsis and ocular disease status at baseline and acuity loss 4.4 years later was examined in a large aged random sample with good initial acuity. In univariate analyses, several vision measures, re...