Person:
Pérez Carrasco, María Jesús

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First Name
María Jesús
Last Name
Pérez Carrasco
URI
https://hdl.handle.net/20.500.14352/79893
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Óptica y Optometría
Department
Optometría y Visión
Area
Optica
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2012 - 20152
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Start date: 2006 × Subject: 617.7 ×

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    Impaired Mesopic Visual Acuity in Eyes with Early Age-Related Macular Degeneration
    (Investigative Ophthalmology and Visual Science, 2012) Puell Marín, María Cinta; Barrio De Santos, Ana Rosa; Palomo Álvarez, Catalina; Gómez Sanz, Fernando J.; Clement Corral, Amaya; Pérez Carrasco, María Jesús
    Purpose.: To determine photopic and mesopic distance high-contrast visual acuity (HC-VA) and low-contrast visual acuity (LC-VA) in eyes with early age-related macular degeneration (AMD). Methods.: Measurements were made in 22 subjects with early AMD and 28 healthy control subjects. Inclusion criteria included a photopic HC-VA of 20/25 or better. Distance VA was measured using HC (96%) and LC (10%) Bailey-Lovie logMAR letter charts under photopic (85 cd/m2) and mesopic (0.1–0.2 cd/m2) luminance conditions. Results.: Mean mesopic distance HC-VA and LC-VA were significantly worse (0.1 logMAR and 0.28 logMAR, respectively) in the early AMD group than in the control group. Under mesopic conditions, the mean difference between LC-VA and HC-VA was significantly greater in the early AMD (0.45 logMAR) than the control group (0.27 logMAR). Mean differences between mesopic versus photopic HC-VA and mesopic versus photopic LC-VA were significantly greater in the early AMD than the control group (0.13 and 0.32 logMAR of difference between the means, respectively). Sensitivity and specificity were significantly greater for mesopic LC-VA than for mesopic HC-VA (Receiver Operating Characteristics, area under the curve [AUC], 0.94 ± 0.030 and 0.76 ± 0.067, respectively). AUC values for photopic HC-VA and LC-VA were below 0.70. Conclusions.: Visual acuity testing under low luminance conditions emerged as an optimal quantitative measure of retinal function in early AMD.
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    Síndrome de visión del ordenador: un nuevo reto para la prevención (CVS).
    (Seguridad y promoción de la salud (Fundación Mapfre), 2015) Bonnin Arias, Cristina Natalia; Sánchez Ramos, Celia; Pérez Carrasco, María Jesús; Aguirre Vila-Coro, Victoria; García Rojo, Marta; Blanco Navarro, Carolina; Chamorro Gutiérrez, Eva
    El presente estudio epidemiológico se ha realizado sobre una muestra de 314 personas clasificadas por el tiempo que dedicaban al uso de dispositivos con pantallas retroiluminadas, resultando dos grupos: los clasificados como usuarios (más de 3 horas) y como no usuarios (menos de 3 horas). Constatada la incidencia de estas prácticas en la aparición de problemas oculares incluso no reversibles, de las conclusiones del estudio se desprende la necesidad de que los especialistas sugieran estrategias de prevención, tales como cambios de iluminación, la adopción de hábitos saludables de posicionamiento frente al ordenador, el uso de lágrimas artificiales y la utilización de gafas y lentes de contacto especialmente diseñadas y tratadas para proteger los ojos.