نتایج جستجو برای: cycloplegia
تعداد نتایج: 238 فیلتر نتایج به سال:
PURPOSE The study was conducted to compare the accuracy of readings of the RMA-3000 autorefractometer (Topcon, Tokyo, Japan) with traditional retinoscopy as a means of determining the approximate subjective refraction in children after cycloplegia. METHODS 142 children aged 3 to 15 years were included. All children had their refractive status measured with the RMA-3000 autorefractometer (nonc...
BACKGROUD To evaluate the manifestations of increased esodeviation under cycloplegia with 0.5% tropicamide and 0.5% phenylephrine in children with hyperopia and esotropia. METHODS We reviewed the medical record of 34 children with hyperopia and esotropia who underwent a prism alternate cover test before and after instillation of mixed eye drops containing 0.5% tropicamide and 0.5% phenylephri...
Paradoxical myopic shift following cycloplegia in retinopathy of prematurity patients: a case series
INTRODUCTION Spectacle non-compliance is a significant problem in pediatric patients, and may have a variety of consequences. Non-compliance with myopic refractive correction could be secondary to a variety of issues, including age, discomfort, gender, urban vs. rural residence, presenting visual acuity, and degree of refractive error. We observed a phenomenon in our pediatric patients with ret...
Non-invasive biometry of the anterior structures of the human eye can be performed with unprecedented precision of 8-10 microns and a resolution of approximately 9 microns by partial coherence interferometry, which has the potential to assess the effect of cycloplegia on the ocular components of the anterior eye segment, to further improve the precision to 1-2 microns by the use of these agents...
Abstract Background The purpose of this study was to evaluate the shape crystalline lens in terms biometry and diopters before after cycloplegia using CASIA2 swept-source (SS) optical coherence tomography (OCT) system on anterior segment. Methods This a retrospective study. Children adolescents (26 males 29 females, aged 4–21 years) with simple ametropia were selected for optometry imaging at 2...
To compare subjective refraction under binocular and monocular conditions, and to investigate the clinical factors affecting the difference in spherical refraction between the two conditions. We examined thirty eyes of 30 healthy subjects. Binocular and monocular refraction without cycloplegia was measured through circular polarizing lenses in both eyes, using the Landolt-C chart of the 3D visu...
PURPOSE The development of emmetropic refraction is known to be under visual control. Does partial spectacle correction of infants' refractive errors, which has been shown to have beneficial effects in reducing strabismus and amblyopia, impede emmetropization? The purpose of the present study was to perform the first longitudinal controlled trial to investigate this question in human subjects. ...
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