ABSTRACT
OBJETIVO: Evaluar el vault y la toma de decisiones en la selección del tamaño de la lente del segundo ojo en una serie de pacientes que recibieron implantes bilaterales de una lente fáquica de cámara posterior (pIOL) con puerto central para la corrección de la miopía. MÉTODOS: La muestra del estudio incluyó los pacientes a los que se implantó una pIOL de diferente tamaño entre ambos ojos de una serie total de 269 pacientes intervenidos mediante inserción bilateral secuencial en nuestra institución entre marzo de 2012 y mayo de 2015. Los procedimientos en cada paciente fueron separados en el tiempo para seleccionar el tamaño de la pIOL en los segundos ojos. El vault fue analizado objetivamente mediante tomografía de coherencia óptica. RESULTADOS: La decisión de modificar el tamaño de la pIOL se tomó en 25 pacientes. En 9 pacientes se implantó una pIOL más pequeña en el segundo ojo, mientras que en 16 pacientes se necesitó una talla más grande. La implantación de una talla más grande condujo a un aumento medio del vault de 251 ± 180 micras, mientras que una lente de menor tamaño se tradujo en una disminución media del vault de 542 ± 187 micras. En 5 pacientes, la pIOL implantada en el primer ojo se rotó verticalmente para reducir el vault. No fue necesario explantar ninguna lente. CONCLUSIONES: El vault en los ojos adelfos de pacientes intervenidos bilateralmente con una pIOL miópica puede ser optimizado valorando la talla a implantar en el segundo ojo en función del vault obtenido en el primer ojo
PURPOSE: To assess vault and the decision-making process involved in selecting the size of the lens for the fellow eye in a series of patients who received bilateral phakic collamer intraocular lens (pIOL) implants with central hole for correction of myopia. METHODS: The study sample included all patients who underwent bilateral insertion of a different size pIOL from a pool of 269 patients who underwent sequential bilateral insertion of a pIOL from March 2012 to May 2015 in our institution. Procedures were separated in time to assess the value of the vault and select the pIOL size in second eyes. Vault was analysed objectively using optical coherence tomography. RESULTS: The decision to change the size of the pIOL in the fellow eye was taken in 25 patients. A smaller pIOL was implanted in the second eye in 9 patients, whereas a lens that was 1 size larger was necessary in 16 patients. Implantation of a larger lens led to a mean increase in vault of 251 ± 180 microns; implantation of a smaller size lens led to a mean decrease in vault of 542 ± 187 microns. In 5 patients, the pIOL implanted in first eye was rotated vertically to reduce lens vault. No lenses had to be explanted. CONCLUSIONS: Vault in fellow eyes can be improved in patients receiving bilateral myopic pIOL implants by modifying the pIOL size based on the vault value obtained in the first eyes
Subject(s)
Humans , Male , Female , Adult , Phakic Intraocular Lenses , Process Optimization , Decision Making , Orbital Implants , Myopia/surgery , Refractive Surgical Procedures/methods , Tomography, Optical Coherence/methods , Retrospective Studies , Postoperative ComplicationsABSTRACT
PURPOSE: To assess vault and the decision-making process involved in selecting the size of the lens for the fellow eye in a series of patients who received bilateral phakic collamer intraocular lens (pIOL) implants with central hole for correction of myopia. METHODS: The study sample included all patients who underwent bilateral insertion of a different size pIOL from a pool of 269 patients who underwent sequential bilateral insertion of a pIOL from March 2012 to May 2015 in our institution. Procedures were separated in time to assess the value of the vault and select the pIOL size in second eyes. Vault was analysed objectively using optical coherence tomography. RESULTS: The decision to change the size of the pIOL in the fellow eye was taken in 25 patients. A smaller pIOL was implanted in the second eye in 9 patients, whereas a lens that was 1 size larger was necessary in 16 patients. Implantation of a larger lens led to a mean increase in vault of 251 ± 180 microns; implantation of a smaller size lens led to a mean decrease in vault of 542 ± 187 microns. In 5 patients, the pIOL implanted in first eye was rotated vertically to reduce lens vault. No lenses had to be explanted. CONCLUSIONS: Vault in fellow eyes can be improved in patients receiving bilateral myopic pIOL implants by modifying the pIOL size based on the vault value obtained in the first eyes.
Subject(s)
Myopia/surgery , Phakic Intraocular Lenses , Adult , Anthropometry , Equipment Design , Female , Humans , Lens Implantation, Intraocular , Male , Posterior Eye Segment/pathology , Postoperative Period , Retrospective Studies , Tomography, Optical Coherence , Young AdultABSTRACT
No disponible
Subject(s)
History, 20th Century , History, 18th Century , Terminology , Vision Disorders , Night BlindnessABSTRACT
No disponible
Subject(s)
History, 20th Century , History, Medieval , History, 17th Century , History, 18th Century , History, 15th Century , History, 19th Century , History, 16th Century , History, Ancient , Terminology , Vision Disorders , Night BlindnessABSTRACT
PURPOSE: To report the seven-year follow-up of a patient with multiple evanescent white-dot syndrome (MEWDS). CASE REPORT: A 46-year-old woman presented recurrent episodes of bilateral MEWDS. RESULTS: During the seven-year follow-up there were nine episodes of MEWDS. After four bouts in the first two, cyclosporine therapy was started. During two years of treatment there were no recurrences except when the dose was reduced or discontinued. CONCLUSIONS: The etiology of MEWDS is still unknown but the absence of new episodes during cyclosporine treatment and the recurrence immediately after decreasing or discontinuing the drug suggests an autoimmune origin, with the involvement of cellular immunity in the pathogenic process.
Subject(s)
Cyclosporine/therapeutic use , Immunosuppressive Agents/therapeutic use , Retinal Diseases/drug therapy , Female , Fluorescein Angiography , Follow-Up Studies , Fundus Oculi , Humans , Middle Aged , SyndromeABSTRACT
"Mass movement" was described at the beginning of the century by radiologists who occasionally observed how, during their explorations, barium was transported suddenly from one section of the colon to another. In the present study we wanted to center our attention on electromechanical activities accompanying large evacuations via the colostomy, as we believe that they are an expression in myoelectric and pressure terms of the "mass phenomenon" described by radiologists. To do this, we designed an electromyographic recording probe to which we attached a conventional microtransducer probe, joining them by suction. With this method we made 24-hour recordings in eight patients with sigmoid colostomy. We witnessed five large evacuations. When the electric and pressure activities that occurred a few minutes before the evacuation were analyzed, we observed that there were two clearly different phases. The first, which we call "Preliminary Phenomenon," consists of a series of contractions and spiking potentials averaging 5.6 minutes (SD 2.22); after this the "Big Contraction" appears, with mean pressure values of 127 mm Hg (SD 38.77) and mean electric values of 10.6 mV. The duration of this phenomenon averaged 24.93 seconds (SD 6.19), recorded almost simultaneously at the three recording sites studied. There is no doubt that these electro-pressure phenomena resulted in a mass transport, as we observed an intense evacuation via the colostomy in the five patients.
