Fixation pattern analysis with microperimetry in nystagmus patients
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Campo DC | Valor | Idioma |
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dc.contributor | Grupo de Óptica y Percepción Visual (GOPV) | es |
dc.contributor.author | Molina-Martín, Ainhoa | - |
dc.contributor.author | Piñero, David P. | - |
dc.contributor.author | Pérez Cambrodí, Rafael J. | - |
dc.contributor.other | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía | es |
dc.date.accessioned | 2016-03-01T09:50:09Z | - |
dc.date.available | 2016-03-01T09:50:09Z | - |
dc.date.issued | 2015-12 | - |
dc.identifier.citation | Canadian Journal of Ophthalmology. 2015, 50(6): 413-421. doi:10.1016/j.jcjo.2015.07.012 | es |
dc.identifier.issn | 0008-4182 (Print) | - |
dc.identifier.issn | 1715-3360 (Online) | - |
dc.identifier.uri | http://hdl.handle.net/10045/53455 | - |
dc.description.abstract | Objective: To assess the usefulness of microperimetry (MP) as an additional objective method for characterizing the fixation pattern in nystagmus. Design: Prospective study. Participants: Fifteen eyes of 8 subjects (age, 12–80 years) with nystagmus from the Lluís Alcanyís Foundation (University of Valencia, Spain) were included. Methods: All patients had a comprehensive ophthalmologic examination including a microperimetric examination (MAIA, CenterVue, Padova, Italy). The following microperimetric parameters were evaluated: average threshold (AT), macular integrity index (MI), fixating points within a circle of 1° (P1) and 2° of radius (P2), bivariate contour ellipse area (BCEA) considering 63% and 95% of fixating points, and horizontal and vertical axes of that ellipse. Results: In monocular conditions, 6 eyes showed a fixation classified as stable, 6 eyes showed a relatively unstable fixation, and 3 eyes showed an unstable fixation. Statistically significant differences were found between the horizontal and vertical components of movement (p = 0.001), as well as in their ranges (p < 0.001). Intereye comparison showed differences between eyes in some subjects, but only statistically significant differences were found in the fixation coordinates X and Y (p < 0.001). No significant intereye differences were found between microperimetric parameters. Between monocular and binocular conditions, statistically significant differences in the X and Y coordinates were found in all eyes (p < 0.02) except one. No significant differences were found between MP parameters for monocular or binocular conditions. Strong correlations of corrected distance visual acuity (CDVA) with AT (r = 0.812, p = 0.014), MI (r = –0.812, p = 0.014), P1 (r = 0.729, p = 0.002), horizontal diameter of BCEA (r = –0.700, p = 0.004), and X range (r = –0.722, p = 0.005) were found. Conclusions: MP seems to be a useful technology for the characterization of the fixation pattern in nystagmus, which seems to be related to the level of visual acuity achieved by the patient. | es |
dc.language | eng | es |
dc.publisher | Elsevier | es |
dc.rights | © 2015 Canadian Ophthalmological Society. Published by Elsevier Inc. | es |
dc.subject | Microperimetry | es |
dc.subject | Fixation pattern | es |
dc.subject | Nystagmus | es |
dc.subject.other | Óptica | es |
dc.title | Fixation pattern analysis with microperimetry in nystagmus patients | es |
dc.type | info:eu-repo/semantics/article | es |
dc.peerreviewed | si | es |
dc.identifier.doi | 10.1016/j.jcjo.2015.07.012 | - |
dc.relation.publisherversion | http://dx.doi.org/10.1016/j.jcjo.2015.07.012 | es |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | es |
Aparece en las colecciones: | INV - GOPV - Artículos de Revistas |
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2015_Molina_etal_CanJOphthalmol_final.pdf | Versión final (acceso restringido) | 1,87 MB | Adobe PDF | Abrir Solicitar una copia |
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