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dc.contributor.author | Signes Soler, Isabel | |
dc.contributor.author | Hernández-Verdejo, José Luis | |
dc.contributor.author | Estrella Lumeras, Miguel Ángel | |
dc.contributor.author | Tomás Verduras, Elena | |
dc.contributor.author | Piñero Llorens, David P. | |
dc.date.accessioned | 2018-09-27T13:58:13Z | |
dc.date.available | 2018-09-27T13:58:13Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | Signes-Soler, I., Hernández-Verdejo, J. L., Lumeras, M. A. E., Verduras, E. T., & Piñero, D. P. (2017). Refractive error study in young subjects: Results from a rural area in Paraguay. International journal of ophthalmology, 10(3), 467-472. | spa |
dc.identifier.issn | 2222-3959 | |
dc.identifier.uri | http://hdl.handle.net/11268/7433 | |
dc.description.abstract | To evaluate the distribution of refractive error in young subjects in a rural area of Paraguay in the context of an international cooperation campaign for the prevention of blindness. METHODS: A sample of 1466 young subjects (ranging from 3 to 22 years old), with a mean age of 11.21±3.63 years old, were examined to assess their distance visual acuity (VA) and refractive error. The first screening examination performed by trained volunteers, included visual acuity testing, autokeratometry and non-cycloplegic autorefraction. Inclusion criteria for a second complete cycloplegic eye examination by an optometrist were VA <20/25 (0.10 logMAR or 0.8 decimal) and/or corneal astigmatism ≥1.50 D. RESULTS: An uncorrected distance VA of 0 logMAR (1.0 decimal) was found in 89.2% of children. VA <20/25 and/or corneal astigmatism ≥1.50 D was found in 3.9% of children (n=57), with a prevalence of hyperopia of 5.2% (0.2% of the total) in this specific group. Furthermore, myopia (spherical equivalent ≤-0.5 D) was found in 37.7% of the refracted children (0.5% of the total). The prevalence of refractive astigmatism (cylinder ≤-1.50 D) was 15.8% (0.6% of the total). Visual impairment (VI) (0.05≤VA≤0.3) was found in 12/114 (0.4%) of the refracted eyes. Main causes for VI were refractive error (58%), retinal problems (17%, 2/12), albinism (17%, 2/12) and unknown (8%, 1/12). CONCLUSION: A low prevalence of refractive error has been found in this rural area of Paraguay, with higher prevalence of myopia than of hyperopia. | spa |
dc.description.sponsorship | Sin financiación | spa |
dc.language.iso | spa | spa |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject.other | Refractive error | spa |
dc.title | Refractive error study in young subjects: Results from a rural area in Paraguay | spa |
dc.type | article | spa |
dc.description.impact | 1.166 JCR (2017) Q4, 50/59 Ophtalmology | spa |
dc.identifier.doi | 10.18240/ijo.2017.03.22 | |
dc.rights.accessRights | openAccess | spa |
dc.subject.uem | Oftalmología | spa |
dc.subject.uem | Medicina preventiva | |
dc.subject.uem | Ceguera | |
dc.subject.unesco | Oftalmología | spa |
dc.subject.unesco | Medicina preventiva | |
dc.subject.unesco | Ceguera | |
dc.description.filiation | UEM | spa |
dc.peerreviewed | Si | spa |