Results 1 to 10 of about 67,587 (259)
Effective refractive error coverage and quality gaps in Bhutan: evidence from rapid assessment of refractive error [PDF]
BMC Public HealthBackground Uncorrected refractive errors (URE) and presbyopia are leading causes of visual impairment (VI) globally. Bhutan currently lacks population-based data on adult refractive error, hindering efforts to meet WHO’s 2030 targets for effective ...
Indra Prasad Sharma +3 more
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Refractive error maps: A predictive tool for refractive error progression [PDF]
Ophthalmic and Physiological OpticsAbstract Purpose To investigate the influence of axial length on different ocular parameters and create a predictive tool for refractive error progression. Methods Two eye models were used to simulate refractive ...
Fabian Debowy, Barbara Pierscionek
openaire +3 more sources
Bulletin of the World Health Organization, 2001 Recent data suggest that a large number of people are blind in different parts of the world due to high refractive error because they are not using appropriate refractive correction.
Dandona Rakhi, Dandona Lalit
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Contrast sensitivity before and after refractive error correction among refractive error patients in Hawassa, Sidama, Ethiopia 2023 [PDF]
BMC OphthalmologyBackground Contrast sensitivity is an important measure of vision quality. Risk of falling injury is strongly associated with poor contrast sensitivity compared with poor near- and distance visual acuity.
Balcha Negese Kebede +2 more
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Improving Access to Refractive Services in Adults: A Health Examination Center-Based Model
Frontiers in Medicine, 2021 Purpose: To assess the potential of a health examination center-based screening model in improving service for uncorrected refractive error.Methods: Individuals aged ≥18 years undergoing the routine physical examinations at a tertiary hospital in the ...
Haishuang Lin +15 more
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Deutsches Ärzteblatt international, 2016 All over the world, refractive errors are among the most frequently occuring treatable distur - bances of visual function. Ametropias have a prevalence of nearly 70% among adults in Germany and are thus of great epidemiologic and socio-economic relevance.In the light of their own clinical experience, the authors review pertinent articles retrieved by a
Ulrich, Schiefer +4 more
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Journal of Ophthalmic & Vision Research, 2023 Purpose: This study aimed to assess the agreement between topographic indices of healthy subjects and keratoconus (KCN) patients using a swept-source optical coherence tomography (SS-OCT CASIA2) versus a Scheimpflug camera (Pentacam). Methods: 40 eyes of
Hamed Ghassemi +5 more
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Calculating the error in refractive error [PDF]
Eye, 2011 To demonstrate a quick way of calculating the optical difference between two refractions using vector analysis, and to express this as a score for examination purposes.An existing formula is applied, converted to a defocus equivalent, and then converted to a score.
R H, Taylor +3 more
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Journal of Nepal Medical Association, 2023 Introduction: Refractive error is the inability of eyes to focus clearly on images. Visual impairment due to refractive error has a major impact on children's education and daily activities.
Govind Gurung, Krishna Kant Gupta
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Distribution of refractive error among chinese primary school children in a rural area in Pahang, Malaysia [PDF]
Malaysian Family Physician, 2022 Purpose: This study aimed to determine the prevalence and status of refractive error among Chinese primary school children in a rural area in Pahang. Methods: This investigation entailed a cross-sectional retrospective study design involving case file ...
Rokiah Omar +3 more
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