RESUMEN
PURPOSE: To study the outcomes and tolerance of micronized mineral pigments for corneal tattooing, using a superficial automated keratopigmentation (SAK) technique in an experimental animal model and a new puncture device to inject the pigments into the corneal stroma. METHODS: Forty eyes of 40 New Zealand rabbits were included in this study. The animals were divided into groups A and B. Both groups underwent SAK using a new automated keratopigmentation device. Micronized mineral pigments were injected through the epithelium into the corneal stroma to replicate the iris color in 25 eyes (group A), and black color was used to replicate the pupil in 15 eyes (group B). Slit-lamp examination was performed to evaluate the outcome. Histopathological examination was also performed to ascertain the presence of pigment dispersion, inflammation, and/or neovascularization. RESULTS: All 40 eyes showed good cosmetic appearance after keratopigmentation. No intraoperative complications were detected. At the first week, mild or moderated conjunctival injection was observed in 13 eyes and transitory corneal epithelial defects were also detected in 27 eyes. Examination was unremarkable 2, 4, and 6 months after surgery. No neovascularization was detected in any case in the histopathology study. CONCLUSIONS: SAK using a new automated puncture device and micronized mineral pigments achieved good cosmetic outcomes for iris and pupil simulation. This method could be a valid alternative to treat serious cosmetic eye problems that affect the superficial cornea or functional problems, such as photophobia or diplopia secondary to iris defects or trauma.
Asunto(s)
Colorantes/administración & dosificación , Opacidad de la Córnea/cirugía , Color del Ojo , Enfermedades del Iris/cirugía , Minerales/administración & dosificación , Trastornos de la Pupila/cirugía , Tatuaje/métodos , Animales , Sustancia Propia/cirugía , Técnicas Cosméticas , Modelos Animales de Enfermedad , Masculino , ConejosRESUMEN
Se realiza un análisis del síndrome de transfusión feto-fetal y se expone un caso clínico que finalizó en mortinato, demostrándose la gravedad y complejidad de esta patología. se destacan las características clínicas patogénicas, alternativas diagnósticas y eventuales opciones terapéuticas con sus respectivos riesgos, se hace referencia a las múltiples y graves complicaciones post natales