RESUMENObjetivo: Evaluar la reducción del astigmatismo corneal preexistente en la cirugía de catarata mediante incisiones limbares relajantes (ILRs). Método: Estudio prospectivo de dos grupos de pacientes (tratamiento y control) con astigmatismo prequirúrgico ≥1D. Los 30 pacientes del grupo control fueron sometidos a facoemulsificación por incisión temporal en córnea clara y los 32 pacientes del grupo tratamiento a ILRs junto a facoemulsificación por incisión temporal en córnea clara. Se usó el test de Holladay para valorar la eficacia del tratamiento. Asimismo, presentamos un pequeño estudio de la prevalencia y distribución del astigmatismo en nuestra población de trabajo. Resultados: El seguimiento promedio de los 62 pacientes fue de 3 meses, con un cambio astigmáti-co medio a los 3 meses de -0.55D (-0,75 a -0,35) en el grupo tratamiento y de 0.04D (-0,3 a 0,3) en el grupo control (p<,000).
ARTÍCULO ORIGINAL
ABSTRACTPurpose: To evaluate the reduction of pre-existing corneal astigmatism at the time of cataract surgery with limbal relaxing incisions (LRIs). Methods: A prospective study of two groups of patients (treatment and control) with pre-existing astigmatism ≥1D was performed. The 30 patients in the control group had a temporal clear corneal phacoemulsification and the 32 patients of treatment group had combined temporal clear corneal phacoemulsification and LRIs. Holladay analysis was used to assess the efficacy of treatment. An astigmatism distribution and prevalence study in our population is also presented. Results: Three months after surgery, the mean astigmatism change was -0.55D (-0.75 to -0.35) in the treatment group and 0.04D (-0.3 to 0.3) in the control group (p<.0001). Conclusions: LRI is a simple, safe and effective method not only for reducing pre-existing astigma-
Case Report: We report the case of a 29-year-old man who underwent Ahmed valve implantation in both eyes as treatment for uveitic glaucoma, subsequently presenting with bilateral ocular decompression retinopathy in the postoperative period. Discussion: Ocular decompression retinopathy is a rare complication of filtering surgery in patients with glaucoma; however, the course is benign in most cases, with spontaneous resolution of bleedings and improvement of visual acuity.
Clinical case: The case of a three-year-old patient with neurofibromatosis type I is presented. Ophthalmologic evaluation revealed, by means of magnetic resonance imaging, the presence of a silent glioma in the optic nerve of the left eye. Discussion: Neurofibromatosis-1 can present in multiple ways to the ophthalmologist, with a glioma of the optic nerve being one of the most frequent central nervous system presentations in this illness. Generally the glioma affects the optic chiasm and its course is indolent, with conservative management and close monitoring usually being advised until progression is defined (Arch Soc Esp Oftalmol 2006; 81: 33-36).Key words: Optic nerve glioma, neurofibromatosis, magnetic resonance.
SHORT COMMUNICATION
RESUMENCaso clínico: Se presenta el caso de una paciente de tres años de edad con neurofibromatosis tipo 1. La exploración oftalmológica reveló, mediante resonancia nuclear magnética, la presencia de un glioma de curso silente en el nervio óptico del ojo izquierdo. Discusión: La neurofibromatosis-1 produce múlti-ples manifestaciones en el campo oftalmológico, siendo los gliomas de la vía óptica los tumores del sistema nervioso central más frecuentes en la enfermedad. Por lo general suelen afectar al quiasma y su curso suele ser indolente, aceptándose un tratamiento conservador con seguimiento estrecho hasta que se detecte progresión.Palabras clave: Glioma de nervio óptico, neurofibromatosis, resonancia magnética.
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