Person:
Gómez Sanz, Fernando Javier

First Name

Fernando Javier

Last Name

Gómez Sanz

URI

https://hdl.handle.net/20.500.14352/79929

Affiliation

Universidad Complutense de Madrid

Faculty / Institute

Óptica y Optometría

Department

Optometría y Visión

Area

Optica

Identifiers

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Search Results

Now showing 1 - 10 of 15

Comparison of the impact of nesofilcon A hydrogel contact lens on the ocular surface and the comfort of presbyopic and non-presbyopic wearers
(International journal of ophthalmology, 2019) Lorente Velázquez, Amalia; García Montero, María; Gómez Sanz, Fernando Javier; Rico del Viejo, Laura; Hernández Verdejo, José Luis; Madrid Costa, David
AIM: To assess and compare the impact of a daily disposable contact lens (CL) with high water content on the ocular surface and comfort of the presbyopic and non-presbyopic population after one day of use. METHODS: Totally 20 presbyopes and 30 non-presbyopes non-contact wearers were fitted with nesofilcon A CLs. CL thickness was measured to assess material stability during daily wear, and ocular surface parameters were also assessed. Optical quality was analyzed for all cases. In addition, CL comfort was rated. RESULTS: No significant differences were found in CL thickness, tear film osmolarity, average tear break-up time, bulbar redness, central corneal thickness, corneal volume, root-mean-square of higher-order aberrations (RMS of HOAs) and vertical and horizontal coma, either as a function of the group or time of use. A significant decrease in tear meniscus height and first break-up of the tear film was found in the presbyopic group (P=0.038; P=0.007 respectively). A decrease in spherical aberration coefficient was found after CL insertion (P=0.031 monofocal CL; P=0.023 low addition multifocal CL; P=0.016 high addition multifocal CL). Multifocal CL were thicker than monofocal CL (P=0.045). Comparison between groups showed more discomfort in presbyopes than non-presbyopes (P=0.003). CONCLUSION: This study evidence that the behavior of the daily disposable CL with high water content seems to be stable during the day of use. Ocular parameters measured during wear show that CL behavior is the same for presbyopes and non-presbyopes, being more uncomfortable for presbyopes.
The influence of meibomian gland loss on ocular surface clinical parameters
(Contact Lens and Anterior Eye, 2019) Rico del Viejo, Laura; Benítez del Castillo, José Manuel; Gómez Sanz, Fernando Javier; García Montero, María; Llorens Quintana, Clara; Madrid Costa, David
Purpose: To assess the relationship between the meibomian gland loss (MGL) and relevant ocular surface clinical parameters as well as the influence of age in this relationship. Methods: A total of 161 participants (mean age; 42±17 years) were enrolled in this study. Infrared meibography was performed using Keratograph 5M (K5M; Oculus GmbH, Wetzlar). Participants were divided into five groups according to total meiboscore and the ocular surface parameters of each MGL group were studied. In addition, the relationship between MGL and the ocular surface parameters was established including age as covariant. Results: Both eyelids were taken into account since no association between the MGL from upper and lower eyelid was found (k value=0.2; p=0.3) despite they were significantly correlated (r= 0.3; p<0.001). No statistically significant differences were found in symptomatology among different MGL groups. Statistically significant differences were found among MGL groups in tear osmolarity (p=0.02), bulbar redness (p=0.04), corneal and conjunctival staining (p=0.01 and p=0.004, respectively). Despite this, only corneal staining showed a significant correlation with MGL when age was covariant (r=0.2; p=0.04). Conclusions: MGL higher than 50% seems to be accompanied by signs on the ocular surface. Furthermore, age demonstrated to be a relevant factor when assessing MGL. For this reason, future studies should compare age-matched groups in order to know the contribution of the MGL on the ocular surface and establish valid cut-off values for dry eye diagnosis.
Engañando a las células on-off: evolución histórica de nuestra compresión del modo en que los animales se camuflan
(Archivos de la Sociedad Española de Oftalmología, 2016) González Martín-Moro, Julio; Gómez Sanz, Fernando Javier
Evolución histórica de nuestro conocimiento del sistema visual de las luciérnagas. Potenciales funciones ópticas del protórax
(Archivos de la Sociedad Española de Oftalmología, 2016) González Martín-Moro, Julio; Compte-Sart, A.; Hernández Verdejo, José Luis; Gómez Sanz, Fernando Javier
Fourth nerve palsy plus contralateral Horner syndrome secondary to mesencephalic haemorrhage: An unusual crossed syndrome
(Clinical and Experimental Optometry, 2015) González Martín-Moro, Julio; Gilo Arrojo, Francisco; Rodríguez del Valle, José María; Sales Sanz, Andrea; González López, Julio José; Pilo de la Fuente, Belén; Gómez Sanz, Fernando Javier
Iatrogenic diplopia
(International Ophthalmology, 2014) González Martín-Moro, Julio; González López, Julio José; Sales Sanz, Marco; Sales Sanz, Andrea; González Martín-Moro, Javier; Gómez Sanz, Fernando Javier; González Manrique, Mar; Pilo de la Fuente, Belén; García Leal, Roberto
Diplopia is a very disturbing condition that has been reported as a complication of several surgical procedures. The following review aims to identify the ocular and nonocular surgical techniques more often associated with this undesirable result. Diplopia is reported as an adverse outcome of some neurosurgical procedures, dental procedures, endoscopic paranasal sinus surgery, and several ophthalmic procedures. The most common patterns and some recommendations in order to prevent and treat this frustrating outcome are also given.
La forma de la pupila en el reino animal: de la pseudopupila a la pupila vertical
(Archivos de la Sociedad Española de Oftalmología, 2014) González Martín-Moro, Julio; Gómez Sanz, Fernando Javier; Sales Sanz, Andrea; Huguet Baudin, Eduardo; Murube del Castillo, Juan
Objetivo: estudiar las distintas formas que la pupila adquiere en las diferentes especies animales. Material y métodos: revisión de la literatura, utilizando PubMed. La estrategia inicial de búsqueda fue pupil shape (limitada a animals). También se revisaron 2 textos relacionados: System of Ophthalmology (Duke-Elder) y Evolution's witness (I. Schwab). Resultados: en los ojos compuestos de los insectos es habitual observar una ilusión óptica que recibe el nombre de pseudopupila. La pupila tiene en la mayor parte de los vertebrados forma circular. Sin embargo en los gatos y en algunas especies de serpiente adopta forma vertical. La apertura vertical podría tener una función fotoprotectora al conseguir una reducción más efectiva de la entrada de luz en el ojo. Se ha especulado con que ayudaría a corregir la aberración cromática, y probablemente ayuda a camuflar al animal. En los rumiantes es habitual la pupila en hendidura horizontal. Esta forma podría potenciar la capacidad del sistema visual para detectar siluetas verticales. En el medio marino es frecuente que la pupila adopte forma de creciente, debido a la presencia de un opérculo superior que protegería la retina del exceso de luz procedente de la superficie. Conclusión: la forma de la pupila ofrece una sorprendente variabilidad gracias a la cual la naturaleza ha adaptado el ojo a diversas circunstancias. Las teorías propuestas para justificar esta gran variabilidad se discuten de forma detallada en el artículo.
Impact of tamsulosin exposure on late complications following cataract surgery: retrospective cohort study
(International Ophthalmology, 2014) González Martín-Moro, Julio; González López, Julio José; Gómez Sanz, Fernando Javier; Zarallo Gallardo, Jesús
The purpose of this study is to measure the impact of tamsulosin intake on five postoperative cataract surgery complications (toxic anterior segment syndrome, rebound uveitis, retinal detachment, macular edema, and postoperative endophthalmitis). This retrospective cohort study was conducted at University Hospital of Henares. The study included 660-eyes of 660 patients submitted to cataract surgery at the ophthalmology unit of Hospital del Henares (Madrid) between 2 March 2009 and 28 February 2010. Extracapsular cataract extraction, combined glaucoma and cataract surgery phacovitrectomy, posterior capsule rupture and zonular damage were considered exclusion criteria. Clinical charts were reviewed during July 2012. Patients were divided in two groups (exposed and non-exposed to tamsulosin). Cumulative incidence of toxic anterior segment syndrome, rebound uveitis, retinal detachment, macular edema and postoperative endophthalmitis were compared in both groups. Rebound uveitis (relative risk [RR] 3.39; confidence interval [CI] 1.63–7.08) and macular edema (RR 4.15; CI 1.06–16.22) were more common in the tamsulosin-exposed group. Retinal detachment had a similar incidence in both groups. We observed no cases of endophthalmitis or toxic anterior segment syndrome in either of the two groups. Tamsulosin exposure in this cohort was associated with a higher risk of rebound uveitis and macular edema but the other three studied postoperative complications had a similar incidence in both groups.
Nonsurgical Procedures for Keratoconus Management
(Journal of Ophthalmology, 2017) Rico Del Viejo, Laura; García Montero, María; Hernández Verdejo, José Luis; García Lázaro, Santiago; Gómez Sanz, Fernando Javier; Lorente Velázquez, Amalia
Objectives. To describe the past 20 years’ correction modalities for keratoconus and their visual outcomes and possible complications. Methods. A review of the published literature related to the visual outcomes and possible complications in the context of keratoconus management using nonsurgical procedures for the last 20 years (glasses and contact lenses) was performed. Original articles that reported the outcome of any correction modalities of keratoconus management were reviewed. Results. The most nonsurgical procedure used on keratoconus management is the contact lens fitting. Soft contact lenses and soft toric contact lenses, rigid gas-permeable contact lenses, piggyback contact lens system, hybrid contact lenses, and scleral and corneoscleral contact lenses form the contemporary range of available lens types for keratoconus management with contact lenses. All of them try to restore the vision, improve the quality of life, and delay surgical procedures in patients with this disease. Complications are derived from the intolerance of using contact lens, and the use of each depends on keratoconus severity. Conclusions. In the context of nonsurgical procedures, the use of contact lenses for the management of keratoconic patients represents a good alternative to restore vision and improve the quality of live in this population.
Maculopatía por puntero láser. ¿Un nuevo problema de salud pública?
(Archivos de la Sociedad Española de Oftalmología, 2016) Alda Serrano, Javier; Gómez Sanz, Fernando Javier; González Martín-Moro, Julio