0000000001234425
AUTHOR
Cristina Peris Martínez
Descemet Membrane Endothelial Keratoplasty for Corneal Decompensation Secondary to Phakic Intraocular Lenses
Purpose. To describe the surgical technique and clinical outcomes of bilensectomy (pIOL explant and phacoemulsification), followed by DMEK performed for bullous keratopathy secondary to pIOL.Methods. Seven eyes of seven patients, who developed corneal decompensation after pIOL implantation, underwent bilensectomy followed by DMEK in a two-step procedure. Main outcome measures included uncorrected visual acuity (UCVA) and best-corrected visual acuity (BCVA), refraction, endothelial cell density (ECD) at 1, 3, 6, and 12 months, and intraoperative and postoperative complications.Results. DMEK was performed at a mean time of 9.83 ± 8.23 months after bilensectomy. BCVA (log MAR) improved in all …
Validation of Automated Screening for Referable Diabetic Retinopathy With an Autonomous Diagnostic Artificial Intelligence System in a Spanish Population
Purpose: The purpose of this study is to compare the diagnostic performance of an autonomous artificial intelligence (AI) system for the diagnosis of referable diabetic retinopathy (RDR) to manual grading by Spanish ophthalmologists. Methods: Subjects with type 1 and 2 diabetes participated in a diabetic retinopathy (DR) screening program in 2011 to 2012 in Valencia (Spain), and two images per eye were collected according to their standard protocol. Mydriatic drops were used in all patients. Retinal images—one disc and one fovea centered—were obtained under the Medical Research Ethics Committee approval and de-identified. Exams were graded by the autonomous AI system (IDx-DR, Coralville, Io…
Trasplante de membrana amniotica en la reconstrucción de superficie ocular.
Las indicaciones del empleo de placenta para el tratamiento de patología oftálmica están reevaluándose y redefiniéndose.Esta tesis ha desarrollado su investigación en una doble vertiente, una experimental y otra clínica, para valorar la utilidad de la membrana amniótica en la reconstrucción de la superficie ocular. En la primera parte, se ha aplicado un modelo experimental de causticación corneal con compromiso límbico a 40 ojos de conejo albinos de la raza New Zealand, estableciéndose dos grupos de estudio (control y trasplante de membrana). La evolución espontánea de las lesiones provocadas en el grupo control es hacia la opacidad corneal, neovascularización y tendencia a la conjuntivaliz…
Refractive changes in nuclear, cortical and posterior subcapsular cataracts. Effect of the type and grade
Purpose: To determine the effect of main morphological types and grades of age-related cataracts on refractive error. Methods: We measured 276 subjects with optical compensation prior to the development of cataract. We evaluated 224 eyes with nuclear cataract, 125 with cortical cataract, and 103 with posterior subcapsular (PSC) cataract classified with LOCSIII. We measured visual acuity (VA) with their spectacles and best-corrected visual acuity (BCVA) with chart in decimal scale to obtain the optimal compensation with cataract. We evaluated the differences between compensations. Results: A significant myopic shift was observed in nuclear cataract from low to mild grade (p = 0.031), the sam…