نتایج جستجو برای: hyperopia
تعداد نتایج: 1060 فیلتر نتایج به سال:
[Purpose] To investigate the changes in body balance under ametropic conditions induced by spherical lenses in an upright position. [Subjects and Methods] Twenty subjects (10 males, 10 females) of average age 23.4±2.70 years participated and they were fully corrected by subjective refraction. To induce ametropic conditions (binocular myopia and hyperopia), lenses of ±0.50 D, ±1.00 D, ±1.50 D, ±...
this was a cross-sectional case-control study in which the effect of night-time ambient light on prevalence of myopia in patients with a history of exposure to night-time light during sleep throughout the first three years of their lives was investigated in 2008. two hundred children aged 3-15 years who were brought to our eye clinic at boo-ali hospital for ophthalmic examination investigated a...
Objectives: The eye refractive errors, including myopia, hyperopia, and astigmatism, are the most important visual impairments worldwide. Based on the existing evidence suggests, the visual impairment could contribute to falling in the elderly. Therefore, this study aimed to determine the influence of vision impairment of older adults with eye refractive errors on the occurrence ...
PURPOSE To determine the accuracy of photorefraction and autorefraction as compared to cycloautorefraction and to detect the repeatability of photorefraction. METHODS This diagnostic study included the right eyes of 86 children aged 7-12 years. Refractive status was measured using photorefraction (PlusoptiX SO4, GmbH, Nürnberg, Germany) and autorefraction (Topcon RM800, USA) with and without ...
PURPOSE To explore the effectiveness of using a series of tests combining near visual acuity (NVA) and distance visual acuity (DVA) for large-scale screenings for significant refractive error (SRE) in primary school children. METHOD Each participant underwent DVA, NVA and cycloplegic autorefraction measurements. SREs, including high myopia, high hyperopia and high astigmatism were analyzed. C...
Refractive error (RE) is a complex, multifactorial disorder characterized by a mismatch between the optical power of the eye and its axial length that causes object images to be focused off the retina. The two major subtypes of RE are myopia (nearsightedness) and hyperopia (farsightedness), which represent opposite ends of the distribution of the quantitative measure of spherical refraction. We...
PURPOSE To assess associations between refractive error (hyperopia, myopia, and spherical equivalent [SEq]) and age-related maculopathy (ARM) in an older population. METHODS A population-based survey examined 3654 people aged 49 years or older, 82% of whom were permanent residents in an area west of Sydney, Australia. Participants had a detailed eye examination, including standardized refract...
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. ...
Hyperopic automated lamellar keratoplasty (H-ALK) is a refractive procedure that corrects low to moderate hyperopia of up to +5.00 diopters (D). In this retrospective series, we examined the efficacy, predictability, and safety of H-ALK in 85 eyes in 49 patients. Follow-up was from 4 to 34 weeks (mean 18 weeks). Eyes were divided into three subsets: those in which we attempted an emmetropic res...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید