Person:
Carballo Álvarez, Jesús

First Name

Jesús

Last Name

Carballo Álvarez

Affiliation

Universidad Complutense de Madrid

Faculty / Institute

Óptica y Optometría

Department

Optometría y Visión

Area

Optica

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Now showing 1 - 10 of 19

PhDAY 2020 -FOO (Facultad de Óptica y Optometría)
(Facultad de Óptica y Optometría (UCM), 2020) Carpena Torres, Carlos; Pintor, Jesús; Pérez de Lara, María Jesús; Toral, Fernando; Crooke, Almudena; Pastrana, Cristina; Carracedo Rodríguez, Juan Gonzalo; Cayuela López, Ana; Sorzano Sánchez, Óscar; Charbel, Carla; Garzón Jiménez, Nuria; Carballo Álvarez, Jesús; Diz Arias, Elena; Fernández Jiménez, Elena; Peral Cerdá, Assumpta; Gómez Pedrero, José Antonio; Durán Prieto, Elena; López Alonso, José Manuel; Fernández Torres, Miguel Ángel; Guzmán Aránguez, Ana Isabel; Gómez Manzanares, Ángela; Vázquez Moliní, Daniel; Martínez Antón, Juan Carlos; Bernárdez Vilaboa, Ricardo; Mayorga Pinilla, Santiago; Álvarez Fernández-Balbuena, Antonio; Benítez, AntoJ.; El Youssfi, Asmae Igalla; León Álvarez, Alejandro; Palomo Álvarez, Catalina; LLedó Mayans, Victoria Eugenia; Awad Alkozi, Hanan; Sánchez Naves, Juan; Martínez Alberquilla, Irene; García Montero, María; Ruiz Alcocer, Javier; Madrid Costa, David; Martínez Florentín, Gema; Papas, Eric B.; Medrano Muñoz, Sandra Milena; Molina, Nancy; Jurado, Sandra; Oliveiros López, Juan; Platero Alvarado, Nadiuska Cristine; Garrido Mercado, Rafaela; Pérez Garmendia, Carlos; Antona Peñalba, Beatriz; Barrio de Santos, Ana Rosa; González Pérez, Mariano; Pérez Garmendia, Carlos; Serramito Blanco, María; Privado Aroco, Ana; Almalki, Wael; Bodas Romero, Julia; Ouzzani, Mohamed; Paune, Jaume; Calderón García, Raquel; Pitarch Velasco, Aida; Cebrián, José Luis; Sánchez Pérez, Isabel; García Rojo, Marta María; Bonnin Arias, Cristina; Sánchez Ramos, Celia; Gutiérrez Jorrín, Sara Carmen; Rodríguez Alonso, Xabier; Laucirica Sáenz, Gorka; Arranz Márquez, Esther; Alonso Castellanos, Miriam; Teus Guezala, Miguel Ángel; Hernández Verdejo, José Luis; Mármol Errasti, Esther; Martín García, Beatriz; Arriola Villalobos, Pedro; Gómez de Liaño, Rosario; Mínguez Caro, N; Orduña Azcona, Javier; Navarro Gil, Francisco Javier; Huete Toral, Fernando; Rodríguez Pomar, Candela; Pastrana Robles, Cristina; Martínez Águila, Alejandro; Martín Gil, Alba; Tomé de la Torre, Miguel Ángel
Por cuarto año consecutivo los doctorandos de la Facultad de Óptica y Optometría de la Universidad Complutense de Madrid cuentan con un congreso propio organizado por y para ellos, el 4º PhDAY- FOO. Se trata de un congreso gratuito abierto en la que estos jóvenes científicos podrán presentar sus investigaciones al resto de sus compañeros predoctorales y a toda la comunidad universitaria que quiera disfrutar de este evento. Apunta en tu agenda: el 15 de octubre de 2020. En esta ocasión será un Congreso On-line para evitar que la incertidumbre asociada a la pandemia Covid-19 pudiera condicionar su celebración.
The influence of rigid gas permeable lens wear on the concentrations of dinucleotides in tears and the effect on dry eye signs and symptoms in keratoconus
(Elsevier, 2016-10) Carracedo Rodríguez, Juan Gonzalo; González-Méijome, José Manuel; Martín Gil, Alba; Carballo Álvarez, Jesús; Pintor, Jesús
Purpose: To evaluate the signs and symptoms of dry eye and dinucleotide secretion in tears of keratoconus patients (KC) and the potential effect of rigid gas permeable (RGP) contact lens wear. Methods: Twenty-three KC patients and forty control subjects were enrolled in this study. Signs of dry eye including tear volume, tear stability and corneal staining along with symptoms were assessed using the McMonnies questionnaire. Tears were collected using Schirmer strips, and dinucleotide concentrations in collected tears measured using high pressure liquid chromatography. Values obtained in KC and controls were compared. The effect of contact lens wear in KC was also assessed. Results: KC eyes showed a significantly lower tear volume compared to controls, shorter tear break up time (TBUT), higher corneal staining and higher McMonnies dry eye questionnaire scores (p < 0.05). When compared with non-wearers, KC contact lens wearers showed significantly higher symptoms, lower Schirmer and TBUT values (p < 0.05). Concentration of Ap4A (0.695 ± 0.304 μM vs. 0.185 ± 0.178 μM) and Ap5A (0.132 ± 0.128 μM vs. 0.045 ± 0.036 μM) were higher in KC compared to controls (p < 0.001) and only Ap4A was statistically higher in RGP wearers compared to non-wearers (0.794 ± 0.478 μM vs. 0.417 ± 0.313 μM) (p < 0.05). Conclusion: Signs and symptoms of dry eye as well as concentrations of Ap4A and Ap5A were markedly increased in KC patients compared to controls. Moreover, Ap4A and symptoms of dry eye were statistically higher in RGP wearers compared to non-wearers. This seems to indicate that factors such as RGP contact lens wear might exacerbate the clinical condition of dry eye.
Fundamentos y técnicas biomicroscópicas para el análisis del globo ocular y anejos
(2021-09-29) Carballo Álvarez, Jesús; Cedrún Sánchez, Juan Enrique; Bella Gala, Rafael; Peral Cerdá, Assumpta; Cuiña Sardiña, Ricardo
Describe las características del Biomicroscopio, también llamado Lámpara de hendidura junto a las diversas técnicas quu se pueden realizar para la observación y estudio de los medios oculares. En el enlace de Youtube siguiente se pueden consultar los videos divulgativos fruto de este Proyecto de innovación realizado en la Facultad de Óptica y Optometría de la UCM
Función visual en pacientes con queratocono pre y post implantación de anillos intraestromales y posterior adaptación de lentes de contacto
(Universidad Complutense de Madrid, Servicio de Publicaciones, 2015-05-19) Carballo Álvarez, Jesús; Puell Marín, María Cinta
"OBJETIVOS": Analizar y comparar los cambios en la función visual en ojos con queratocono, pre y post implantación de anillos intraestromales(ICRS) Keraring® y la posterior adaptación de lentes de contacto hidrofílicas tóricas(LHT). "METODOS": Los ojos fueron evaluados en condiciones mesópicas(0,1-0,2 cd/m2) y fotópicas(85 cd/m2). Las agudezas visuales compensadas de alto (AVC-AC) y bajo (AVC-BC) contraste fueron medidas con la carta de Bailey-Lovie y la sensibilidad al contraste (SC) con la carta de Pelli-Robson. La adaptación de las LHT se estableció según la AVC-AC como satisfactoria (≤0,2 logMAR) o insatisfactoria (>0,2). Los pacientes en el grupo insatisfactorio fueron readaptados con sistema piggy-back (PB). "RESULTADOS": Fueron evaluados 12 ojos con estadio I de queratocono, 21 con estadio II, y 14 con estadio III (clasificación de Amsler-Krumeich). El incremento medio (logMAR) debido a la cirugía en la AVC-AC fotópica fue de 0,16 ± 0,20(P<0,00001), la AVC-BC fotópica de 0,14 ± 0,26(P=0,0005), la AVC-AC mesópica de 0,10 ± 0,26(P=0,03) y la CS fotópica (un. Log.) de 0,09 ± 0,22(P=0,005). No hubo diferencia entre estadios. No fueron significativos los cambios en la AVC-BC mesópica o la CS mesópica para ningún estadio. El straylight se incrementó en los ojos con estadio III. La adaptación de LHT fue satisfactoria en el 75%, 66.66% y el 0% de los ojos implantados con ICRS con estadios I a III respectivamente. La AVC-AC en gafas fue 1,5 líneas logMAR mayor y la potencia corneal media 3.62D más baja en el grupo satisfactorio con LHT. La adaptación de PB consiguió una AVC-AC ≤0,2 logMAR en todos los casos. El straylight no cambió. "CONCLUSIONES": La suma de la cirugía y la adaptación de lentes de contacto mejoró la función visual fotópica y mesópica en AVC-AC, AVC-BC y SC. No hubo cambio en el straylight. La integridad epitelial se mantuvo estable.
Herramientas audiovisuales online y protocolos en la formación, adaptación y gestión de lentes de contacto. Un modelo innovador en la Clínica Universitaria de Optometría de la UCM
(2018-10-15) Carballo Álvarez, Jesús; Batres Valderas, Laura; Padrino Natividad, Esther; Rodríguez-Lafora Lorente, María; Serramito Blanco, María; Martín Prieto, Marina; Niño Rueda, Aranzazu; Niño Rueda, Cristina; Álvarez Rojas, David; Bartolomé Bartolomé, Gema; Peral Cerdá, María Asunción; Carpena Torres, Carlos; Bella Gala, Rafael; Carracedo Rodríguez, Juán Gonzalo; González Blanco, Félix; García Alonso, Zoe Alexandra; Sánchez Pérez, María Isabel
Con fines docentes y asistenciales, incluye Videos sobre manejo y limpieza de distintos tipos de lentes de contacto. Para la correcta formación de los estudiantes incluye varios manuales sobre el estudio ocular previo a la adaptación. Con fines asistenciales incorpora Material para acompañar la adaptación y entrega de las lentes de contacto. Para mejorar la gestión, incluye un Video-tutorial y los protocolos creados para los pedidos y gestión de las lentes de contacto.
Visual outcomes after bilateral trifocal diffractive intraocular lens implantation
(BioMed Central, 2015-03-14) Carballo Álvarez, Jesús; Vázquez Molini, José María; Sanz Fernández, Juan Carlos; García Bella, Javier; Polo Llorens, Vicente; García Feijoo, Julián; Martinez de la Casa, Jose Maria
Background In recent years new models of intraocular lenses are appearing on the market to reduce requirements for additional optical correction. The purpose of this study is to assess visual outcomes following bilateral cataract surgery and the implant of a FineVision® trifocal intraocular lens (IOL). Methods Prospective, nonrandomized, observational study. Vision was assessed in 44 eyes of 22 patients (mean age 68.4 ± 5.5 years) before and 3 months after surgery. Aberrations were determined using the Topcon KR-1 W wave-front analyzer. LogMAR visual acuity was measured at distance (corrected distance visual acuity, CDVA 4 m), intermediate (distance corrected intermediate visual acuity, DCIVA 60 cm) and near (distance corrected near visual acuity, DCNVA 40 cm). The Pelli-Robson letter chart and the CSV-1000 test were used to estimate contrast sensitivity (CS). Defocus curve testing was performed in photopic and mesopic conditions. Adverse photic phenomena were assessed using the Halo v1.0 program. Results Mean aberration values for a mesopic pupil diameter were: total HOA RMS: 0.41 ± 0.30 μm, coma: 0.32 ± 0.22 μm and spherical aberration: 0.21 ± 0.20 μm. Binocular logMAR measurements were: CDVA −0.05 ± 0.05, DCIVA 0.15 ± 0.10, and DCNVA 0.06 ± 0.10. Mean Pelli-Robson CS was 1.40 ± 0.14 log units. Mean CSV100 CS for the 4 frequencies examined (A: 3 cycles/degree (cpd), B: 6 cpd, C: 12 cpd, D: 18 cpd) were 1.64 ± 0.14, 1.77 ± 0.18, 1.44 ± 0.24 and 0.98 ± 0.24 log units, respectively. Significant differences were observed in defocus curves for photopic and mesopic conditions (p < 0.0001). A mean disturbance index of 0.28 ± 0.22 was obtained. Conclusions Bilateral FineVision IOL implant achieved a full range of adequate vision, satisfactory contrast sensitivity, and a lack of significant adverse photic phenomena. Trial registration Eudract Clinical Trials Registry Number: 2014-003266-2.
Short-term Effect of Scleral Lens on the Dry Eye Biomarkers in Keratoconus
(Lippincott Williams & Wilkins, 2016-02) Carracedo Rodríguez, Juan Gonzalo; Serramito Blanco, María; Martín Gil, Alba; Wang, Zicheng; Carballo Álvarez, Jesús; Pintor, Jesús
Purpose: To evaluate the most important signs of dry eye, such as osmolarity, inflammation, and diadenosine tetraphosphate (Ap4A) concentration before and after wearing scleral lenses for 8 h in keratoconus patients. Methods: A pilot, experimental, short-term study involved 26 keratoconus patients (average age, 36.95 ± 8.95 years). They voluntarily enrolled in the study at the Optometry Clinic of the Faculty of Optics and Optometry in the University Complutense of Madrid. They were divided into two groups: patients with intrastromal corneal ring, the ICRS group, and patients without ICRS, the keratoconus (KC) group. Ocular Surface Disease Index questionnaire, the Schirmer test without anesthesia, tear break-up time, matrix metalloproteinase 9 (MMP-9) concentration, osmolarity, and Ap4A concentration were evaluated before and after wearing a scleral lens for 8 h. Results: The patients wore the scleral lenses from 6 to 9 h, with a mean of 7.59 ± 0.73 h. The mean scleral lens sag for all patients was 4310 ± 166.31 μm, ranging from 4200 μm to 4800 μm. No significant changes in the Schirmer test and tear break-up time were found for either group. Ocular Surface Disease Index scores were statistically lower after wearing scleral lenses for both groups (p < 0.05). A significantly lower osmolarity and a significant rise of MMP-9 concentration after wearing scleral lenses were found in both groups (p < 0.05). Diadenosine tetraphosphate concentration was lower after wearing the scleral lens in the KC group (p < 0.05) but no significant difference was found for the ICRS group (p > 0.05). Conclusions: Short-term scleral lens wearing improves the symptomatology and some signs of dry eye, such as osmolarity and Ap4A concentration. The increase of MMP-9 concentration could be caused by tear film stagnation and use of preserved saline.
Clinical Performance of a New Hybrid Contact Lens for Keratoconus
(Contact Lens Association of Ophthalmologists, Inc., 2014-01) Carracedo Rodríguez, Juan Gonzalo; González-Méijome, José Manuel; Lopes Ferreira, Daniela P.; Carballo Álvarez, Jesús; Batres Valderas, Laura
OBJECTIVES: To compare the clinical performance of the Clearkone hybrid contact lens for the treatment of keratoconus against the habitual contact lens of the patients. METHODS: A total of 33 eyes from 18 patients were fitted with the Clearkone. High- and low-contrast visual acuity (HCVA and LCVA), central corneal thickness (CCT), and contrast sensitivity acuity (CSF) were recorded with habitual lenses (prestudy visit) and after 1 week, 15 days, and 1 month of wear of prescribed Clearkone. Subjective vision and comfort were rated using visual analogue scales (VAS). RESULTS: Three patients discontinued the study, one because of diffuse corneal staining after 1 day of use and the other two because of extreme discomfort. The rest of the patients completed the 1-month study. High contrast visual acuity and LCVA (logMAR) improved significantly from 0.16 ± 0.12 and 0.44 ± 0.22, respectively, with the patient's habitual contact lenses to -0.006 ± 0.058 and 0.23 ± 0.13 after 1 day wearing Clearkone, remaining significant during all follow-up visits (P<0.001; repeated measures analysis of variance [RM-ANOVA]). There were no statistically significant differences in the mean CCT. The improvement of CSF was statistically significant with hybrid contact lenses prescribed compared with the patient's habitual contact lenses (P<0.001; RM-ANOVA test). Improvement in VAS score, with prescribed Clearkone, was statistically significant for comfort (P=0.043; RM-ANOVA test), but not for the subjective vision (P=0.759; RM-ANOVA test). CONCLUSIONS: Clearkone provides an improvement in visual acuity, contrast sensitivity, and subjective comfort in patients with keratoconus when compared with other contact lens options. However, clinicians must get specific training to fit the lens and be aware of potential adverse events.
Relationship Between Flicker Modulation Sensitivity and Retinal Ganglion Cell Related Layer Thicknesses
(ARVO, 2021-10-14) Perez Carrasco, Maria Jesus; Carballo Álvarez, Jesús; Barbur, John L.; Puell Marín, María Cinta
Purpose: Early detection of structural changes in retinal ganglion cells (RGCs) and corresponding changes in visual function is important in early degenerative diseases of the retina, but the sensitivity of both measurements is limited by the inherent variability in healthy subjects. This study investigates the relationships between RGC-related layer thicknesses and foveal and parafoveal flicker modulation sensitivity (FMS) across photopic and mesopic light levels in healthy subjects. Methods: Photopic and mesopic FMS was measured in 56 young adults, at the point of fixation and at an eccentricity of 5 degrees, in each of the four quadrants. Spectraldomain optical coherence tomography (SD-OCT) was used to measure retinal thicknesses. Relationships between foveal and parafoveal FMS and the retinal thickness in the corresponding region were examined after adjusting for confounding variables. Results: Total macular and inner retinal layer (IRL) thicknesses in the parafoveal ring were significant predictors of photopic (P = 0.034) and mesopic (P = 0.034) parafoveal FMS, respectively. The superior peripapillary retinal nerve fiber layer (pRNFL) thickness was a contributing factor to the inferior parafoveal FMS (photopic: P = 0.006 and mesopic: P = 0.021) and the inferior pRNFL thickness was also a contributing factor to the superior parafoveal FMS (photopic: P < 0.001 and mesopic: P = 0.015). Conclusions: The pRNFL thicknesses predict parafoveal FMS for both mesopic and photopic conditions in healthy eyes. Translational Relevance: Themeasurement of rapid flicker sensitivity in the parafoveal retina together with the pRNFL thickness profiles measured before the onset of disease, may provide a more sensitive biomarker for detecting loss of sensitivity caused by the earliest neurodegenerative changes in the eyes.
Posterior cornea and thickness changes after scleral lens wear in keratoconus patients
(Elsevier, 2018-05) Serramito Blanco, María; Carpena Torres, Carlos; Carballo Álvarez, Jesús; Piñero, David Pablo; Lipson, Michael; Carracedo Rodríguez, Juan Gonzalo
Purpose: To evaluate the changes in the corneal thickness, anterior chamber depth and posterior corneal curvature and aberrations after scleral lens wear in keratoconus patients with and without intrastromal corneal ring segments (ICRS). Methods:Twenty-six keratoconus subjects (36.95 ± 8.95 years) were evaluated after 8 h of scleral lens wear. The subjects were divided into two groups: those with ICRS (ICRS group) and without ICRS (KC group). The study variables evaluated before and immediately after scleral lens wear included corneal thickness evaluated in different quadrants, posterior corneal curvature at 2, 4, 6 and 8 mm of corneal diameter, posterior corneal aberrations for 4, 6 and 8 mm of pupil size and anterior chamber depth. Results: There was a statistically significant corneal thinning (p < 0.05) in the inferior region of the KC group and in the superior region of the ICRS group. No change (p > 0.05) in the anterior chamber depth was found. The KC group showed a steepening (p < 0.05) in the temporal quadrant and a flattening that mainly affected to the superior-nasal quadrant. The ICRS group showed a steepening (p < 0.05) that mainly affected to the superior-nasal quadrant. Regarding posterior corneal aberrations, only changes (p < 0.05) in Z4 for 8 mm and Z8 for 4 mm were found in the KC group. Conclusions: Short-term scleral lens wear showed a thinning of the cornea and changes in the posterior corneal curvature affects different regions in keratoconus patients with and without ICRS.