PURPOSE To evaluate the accuracy of autorefraction using three autorefractors comparing to subjective refraction in diagnosing refractive error in children. DESIGN A cross-sectional study. METHODS setting: Community based study. study population: 117 children sampled from primary schools. procedures: All subjects underwent autorefraction using three auto refractors and subjective refraction...

Conventionally adrenergic-anticholinergic combination eye drops (e.g., phenylephrine-tropicamide) are used for pre-operative pupillary dilatation in cataract surgery. This achieves synergy dilatation, but anticholinergic-induced cycloplegia makes already tense lens-capsule of intumescent more taut, and completion capsulorrhexis becomes difficult, often resulting Argentanian flag sign, periphera...

PURPOSE To determine the effect of 1% cyclopentolate on the refractive status of children aged 4 to 18 years. METHODS Using a random cluster sampling in a cross-sectional school-based study design, children with an age of 4-18 years were selected from kindergardens, primary schools, junior and senior high schools in a rural county and a city. Auto-refractometry was performed before and after ...

Methods: This cross-sectional study was conducted in Pediatric Clinic, Mayo Hospital Lahore, Pakistan in the duration of 3 months to assess the best regime for administration of 1% atropine eye drops for cycloplegia and to see the effect of cycloplegia on different types of refractive error. Non probability purposive sampling was done and 30 patients of age between 0 to 12 years were assessed u...

OBJECTIVE To compare refraction measured before and after pharmacologic cycloplegia. METHODS This study used preliminary data from the Beaver Dam Offspring Study, which includes adult children of participants in the population-based Epidemiology of Hearing Loss Study of older adults living in Beaver Dam, Wisconsin. Data were available for 5018 eyes of 2529 participants. Refraction was defined...

PURPOSE To investigate the effect of prior anesthesia on the time to full cycloplegia in young Chinese subjects. METHODS The amplitude of accommodation was monitored over a 50-minute interval after the application of 1% cyclopentolate hydrochloride with a pretreatment of 0.4% benoxinate (oxybuprocaine) or 0.9% saline solution (control). Using a nonlinear mathematical model, the rate of accomm...

PURPOSE To determine the accuracy of measurement by the SureSight autorefractor (software version 2.0) and the influence of accommodation. SETTING Pediatric Section, Department of Ophthalmology, University of Hamburg, Hamburg, Germany. METHODS In a series of comparative measurements, autorefractor readings were compared with cycloplegic retinoscopy in 195 eyes of 108 patients (1 to 81 years...

The purpose of this study was to compare refractions measured with an autorefractor and by retinoscopy with and without cycloplegia. The objective refractions were performed in 199 right eyes from 199 healthy young adults with a mean age of 21.6 +/- 2.66 years. The measurements were performed first without cycloplegia and repeated 30 min later with cycloplegia. Data were analysed using Fourier ...