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Refractive Error

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4981. Does cryotherapy affect refractive error? Results from treated versus control eyes in the cryotherapy for retinopathy of prematurity trial. (PubMed)

Does cryotherapy affect refractive error? Results from treated versus control eyes in the cryotherapy for retinopathy of prematurity trial. To evaluate the effect of cryotherapy on refractive error status between ages 3 months and 10 years in children with birth weights of less than 1251 g in whom severe retinopathy of prematurity (ROP) developed in one or both eyes during the neonatal period.Randomized clinical trial.Two hundred ninety-one children in whom severe ROP developed during (...) the neonatal period.Cryotherapy for ROP.Cycloplegic RefractionThe children underwent repeated follow-up eye examinations, including cycloplegic retinoscopy, between 3 months and 10 years after term due date. Refractive error data from all eyes that were randomized to cryotherapy were compared with data from all eyes that were randomized to serve as controls. Refractive error data were also compared for a subset of children who had both a treated and a control eye that could be refracted.At all ages

2001 Ophthalmology

4982. Prevalence of amblyopia and associated refractive errors in an adult population in Victoria, Australia. (PubMed)

Prevalence of amblyopia and associated refractive errors in an adult population in Victoria, Australia. The study aimed to describe the prevalence of amblyopia and associated refractive errors among an adult Australian population. The Visual Impairment Project (VIP) is a population-based study of age-related eye disease in the state of Victoria, Australia. Data were collected through standardised interviews and orthoptic and ophthalmic dilated examinations. Amblyopia was defined as best

2000 Ophthalmic epidemiology

4983. Refractive error and glaucoma. (PubMed)

Refractive error and glaucoma. To study the association between refractive error, glaucoma damage and IOP in a large population.We examined 32,918 citizens of the city of Malmö, Sweden, 57-79 years of age, searching for individuals with undetected glaucoma. Refraction was measured with autorefractors. Glaucoma damage was defined as reproducible visual field defects with the Humphrey Full Threshold 24-2 program.Glaucoma prevalence was clearly associated with refractive state, increasing

2001 Acta ophthalmologica Scandinavica

4984. The Collaborative Longitudinal Evaluation of Ethnicity and Refractive Error (CLEERE) Study

The Collaborative Longitudinal Evaluation of Ethnicity and Refractive Error (CLEERE) Study The Collaborative Longitudinal Evaluation of Ethnicity and Refractive Error (CLEERE) Study - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more (...) studies before adding more. The Collaborative Longitudinal Evaluation of Ethnicity and Refractive Error (CLEERE) Study The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our for details. ClinicalTrials.gov Identifier: NCT00000169 Recruitment Status : Unknown Verified June 2001 by National Eye Institute (NEI). Recruitment status was: Recruiting First

1999 Clinical Trials

4985. Behavioral treatment of myopia: refractive error and acuity changes in relation to axial length and intraocular pressure. (PubMed)

Behavioral treatment of myopia: refractive error and acuity changes in relation to axial length and intraocular pressure. A controlled outcome study on the effects of behavioral training on several measures of visual performance was conducted. Twenty-nine myopic subjects received complete optometric evaluations before being randomly assigned to one of three experimental groups. One treatment group received a behavioral training program with a feedback and reward component, another group (...) received behavioral training without feedback and reward, and the third group was the no-treatment control group. In addition to measuring the effects of training on visual acuity and refraction, independent measures of axial length and intraocular pressure (IOP) were obtained for all subjects before and after treatment. An analysis of covariance indicated that axial length plays a significant role in mediating the effects of training.

1984 American journal of optometry and physiological optics

4986. [In kinetic perimetry high refractive errors also influence the isopter position outside the central 30 degrees]. (PubMed)

[In kinetic perimetry high refractive errors also influence the isopter position outside the central 30 degrees]. In kinetic perimetry, refractive errors are usually only corrected within the central 30 degrees of the visual field. In this study, we determined whether refractive errors have an influence on the peripheral visual field.The peripheral visual field was determined with and without contact lens correction always by the same examiner in 58 myopic in 30 hyperopic eyes (range (...) of refractive errors - 25 D to + 17.25 D). If the average of an isopter position determined without contact lens was outside its 95 % confidence interval, a significant influence of the corresponding refractive error was postulated. STUDYDESIGN: Experimental, clinical study.In uncorrected myopias > 11 D and uncorrected hyperopias > 9 D, we observed a significant inward displacement of the I4e isopter. In uncorrected myopias > 18 D and uncorrected hyperopias > 13 D, we observed a significant inwards

2002 Klinische Monatsblatter fur Augenheilkunde

4987. Factors associated with undercorrected refractive errors in an older population: the Blue Mountains Eye Study. (PubMed)

Factors associated with undercorrected refractive errors in an older population: the Blue Mountains Eye Study. To identify characteristics of people with clinically relevant undercorrected refractive errors.The Blue Mountains Eye Study was a population based survey of 3654 Australians aged 49-97 years. Examinations included a standardised refraction and measurement of presenting and best corrected visual acuity. Clinically relevant undercorrected refractive error was defined as improvement (...) of >/=10 letters (2+ lines on the logMAR chart) in subjects with presenting acuity 6/9 or worse. Associations with a range of demographic and ocular variables were explored, adjusting for age and sex, presented as odds ratios (OR) with 95% confidence intervals (CI).Undercorrected refractive error was present in 814/3654 subjects (10.2%). Older age (p <0.001), hyperopia (OR 1.45, CI 1.15 to 1.83), longer interval from last eye examination (p <0.001), past occupation as tradesperson (OR 1.64, 1.13

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2002 British Journal of Ophthalmology

4988. The progression of refractive error in school-age children: Shunyi district, China. (PubMed)

The progression of refractive error in school-age children: Shunyi district, China. To assess the progression of refractive error and the incidence of myopia in school-age children in the Shunyi District of Beijing, China.A longitudinal cohort study.A population-based sample of 4,662 children initially examined in 1998 at ages 5 to 13 years was reexamined between September and November, 2000. Refractive error was measured under cycloplegia with autorefraction. Age, sex, and baseline refractive (...) error were evaluated as risk factors for progression.In 28.5 months, the average change in refractive error was -0.42 diopters (standard deviation, 0.68) in right eyes. Myopic shift of refractive error was associated with female sex, older age, and higher myopic or hyperopic refractive error at baseline. The average change in astigmatic error was essentially zero, with significant change in both directions more likely among those with higher baseline astigmatism. Findings were similar for left eyes

2002 American Journal of Ophthalmology

4989. Parental myopia, near work, school achievement, and children's refractive error. (PubMed)

Parental myopia, near work, school achievement, and children's refractive error. To quantify the degree of association between juvenile myopia and parental myopia, near work, and school achievement.Refractive error, parental refractive status, current level of near activities (assumed working distance-weighted hours per week spent studying, reading for pleasure, watching television, playing video games or working on the computer), hours per week spent playing sports, and level of school

2002 Investigative Ophthalmology & Visual Science

4990. Responsiveness of the National Eye Institute Refractive Error Quality of Life instrument to surgical correction of refractive error. (PubMed)

Responsiveness of the National Eye Institute Refractive Error Quality of Life instrument to surgical correction of refractive error. Refractive error and the means by which it is corrected may impact substantially on quality of vision and health-related quality of life in ways not captured adequately by standard measures of visual acuity. The goal of this analysis was to evaluate the responsiveness of the National Eye Institute Refractive Error Quality of Life (NEI-RQL) instrument to surgical (...) correction of refractive error.Prospective, multicenter cohort study.The NEI-RQL, a 42-item measure with 13 scales, was self-administered by 185 patients before and after undergoing surgical correction of myopic or hyperopic refractive error. Preoperative and postoperative clinical information was collected, including refractive error and corrected visual acuity.Differences between preoperative and postoperative NEI-RQL scores were examined. Responsiveness was assessed using the standardized response

2003 Ophthalmology

4991. Refractive error, axial length, and relative peripheral refractive error before and after the onset of myopia. (PubMed)

Refractive error, axial length, and relative peripheral refractive error before and after the onset of myopia. To evaluate refractive error, axial length, and relative peripheral refractive error before, during the year of, and after the onset of myopia in children who became myopic compared with emmetropes.Subjects were 605 children 6 to 14 years of age who became myopic (at least -0.75 D in each meridian) and 374 emmetropic (between -0.25 D and +1.00 D in each meridian at all visits) children (...) participating between 1995 and 2003 in the Collaborative Longitudinal Evaluation of Ethnicity and Refractive Error (CLEERE) Study. Axial length was measured annually by A-scan ultrasonography. Relative peripheral refractive error (the difference between the spherical equivalent cycloplegic autorefraction 30 degrees in the nasal visual field and in primary gaze) was measured using either of two autorefractors (R-1; Canon, Lake Success, NY [no longer manufactured] or WR 5100-K; Grand Seiko, Hiroshima, Japan

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2007 Investigative Ophthalmology & Visual Science

4992. Case Finding for Refractive Errors: Assessment of Refractive Error and Visual Impairment in Children (PubMed)

Case Finding for Refractive Errors: Assessment of Refractive Error and Visual Impairment in Children 17491877 2011 07 14 2018 11 13 0953-6833 15 43 2002 Community eye health Community Eye Health Case finding for refractive errors: assessment of refractive error and visual impairment in children. 37-8 Ellwein Leon B LB Associate Director, National Eye Institute, Bethesda, MD 20892, USA. eng Journal Article England Community Eye Health 8912615 0953-6833 2007 5 12 9 0 2007 5 12 9 1 2007 5 12 9 0

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2002 Community Eye Health

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