A Cochrane review of literature from 1966 to 2004 on screening for correctable visual acuity defects in school-aged children and adolescents found “no robust trials available that allow the benefits of school vision screening to be measured. The disadvantage of attending school with a visual acuity deficit also needs to be quantified. The impact of a screening program will depend on the geograp...

Purpose: To investigate the clinical significance of ocular torsion in children by analyzing associated ophthalmic diseases.Methods: Fundus images were used to detect one or both eyes 83 aged 2-12 years at a pediatric ophthalmology clinic. In cases with torsion, diseases, including strabismus, amblyopia, and refractive errors, investigated.Results: Among patients, 59 (71.2%) 45 (54.2%) had stra...

OBJECTIVE To find the causes of amblyopia in patients 4 to 14 years old attending out patient Ophthalmology department of Khyber teaching Hospital Peshawar. METHODS In this prospective cohort hospital based study 200 children aged 4-14 years were studied over a period of 12 months from December 2005 to November 2006 in outpatient department of Ophthalmology, Khyber Teaching Hospital. Visual a...

Purpose. The Pediatric Vision Scanner (PVS) detects strabismus by identifying ocular fixation in both eyes simultaneously. This study was undertaken to assess the ability of the PVS to identify patients with amblyopia or strabismus, particularly anisometropic amblyopia with no measurable strabismus. Methods. The PVS test, administered from 40 cm and requiring 2.5 seconds of attention, generated...

OBJECTIVE To determine whether visual acuity improvement with Bangerter filters is similar to improvement with patching as initial therapy for children with moderate amblyopia. DESIGN Randomized, clinical trial. PARTICIPANTS We enrolled 186 children, 3 to <10 years old, with moderate amblyopia (20/40-20/80). METHODS Children were randomly assigned to receive either daily patching or to us...

Purpose: To determine the prevalence of amblyopia and strabismus in the schoolchildren of the city of Bojnourd, Iran Methods: In 2010, randomized stratified cluster sampling was employed in a cross-sectional study on primary and junior high schoolchildren. All the examinations were performed in schools. All students received refraction, vision and subjective refraction tests. The cover test was...

PURPOSE To identify factors that influence the outcome of treatment for unilateral amblyopia, as a part of the Monitored Occlusion Treatment of Amblyopia Study (MOTAS). METHODS This was an intervention study consisting of three nonoverlapping phases: "Baseline", "refractive adaptation" (18 weeks of full-time spectacle wear), and "occlusion" (6 hours of patching per day, objectively monitored)...

Amblyopia is much more than decreased vision, it is a syndrome. The variety of deficits is a result of structural and functional differences in the visual pathway from the retina to the cortex. Historically, it was thought that amblyopia did not cause a relative afferent pupillary defect, but recent studies suggest otherwise. Research into the thalamic and cortical influences on the pupillary p...

PURPOSE To investigate, using optical coherence tomography (OCT), whether retinal nerve fiber layer thickness (RNFLT) is affected in amblyopic eyes. METHODS Using OCT (Stratus OCT™ [Carl Zeiss, Dublin, CA]), the RNFLT was measured in 26 patients with persistent unilateral amblyopia and in 25 patients with recovered unilateral amblyopia. The RNFLT was compared between the affected and fellow e...