Caracteristicas y resultados del tratamiento del estrabismo sensorial horizontal / Horizontal sensory strabismus: characteristics and treatment results

RESUMEN

PropositoEstudiar los tipos de estrabismo sensorial horizontal, sus causas y los resultados obtenidos con el tratamiento.Metodo de Estudio retrospectivo de 44 casos diagnosticados y tratados de estrabismo sensorial horizontal entre 2002 y 2007. Se incluyeron los pacientes con una AV ¡Ü de 0,2 en el ojo con peor vision. Se estudiaron la desviaci¨®n en PM, las causas, el tipo de tratamiento realizado, y la presencia de diplop¨ªa pre y postoperatoria. Se consider¨® buen resultado si la desviaci¨®n final era ¡Ü 10 dioptr¨ªas prism¨¢ticas (dp).ResultadosEn el 63,6% de los casos se diagnostic¨® una exotrop¨ªa (XT) y en el 36,4% una endotropia (ET). El 75% de los pacientes tenia una AV entre 0,1 y NPL. Las causas fueron congenitas en 28 y adquiridas en 16 casos. La desviaci¨®n media fue de 46,7 dp. En 5 casos hab¨ªa diplop¨ªa que se resolvi¨® en 3 con el tratamiento. No hubo nuevos casos de diplop¨ªa postoperatoria. La cirug¨ªa se realiz¨® solo en el ojo ambliope en 37 pacientes, en 6 en AO, y en 1 se inyect¨® toxina botul¨ªnica. El resultado quir¨²rgico fue bueno en el 90,6%. El tiempo de evoluci¨®n fue de 31,84 meses.ConclusionesLas XT han sido casi el doble que las ET. La cirug¨ªa ha conseguido muy buenos resultados, con un m¨ªnimo de reintervenciones, operando solo el ojo ambliope. No hubo diplop¨ªas postoperatorias(AU)

ABSTRACT

PurposeTo study the types of horizontal sensory strabismus, their causes, and treatment outcomes.MethodsA retrospective analysis of 44 patients with horizontal sensory strabismus who were treated from 2002 to 2007. Patients whose worse eye vision was inferior or equal to 0.2 were included. The deviation angle in primary position, causes, type of treatment, and pre-operative or post-operative diplopia were studied. A good result was considered if the final deviation was less than 10 prism diopters (pd).ResultsOf the patients studied, 63.6% had exotropia and the 36.4% had esotropia. The visual acuity was between 0.1 and no light perception in 75% of patients. The causes responsible for low vision were congenital in 28, and acquired in 16 cases. The mean deviation was 46.7 pd. Diplopia was present in 5 cases, which were resolved with surgical treatment in 3 of them. The eye with reduced vision was operated on in 37 patients, both eyes in 6 cases, and botulinum toxin was injected in 1 case. The final outcome was successful in 90.6% of the cases which were surgically treated. The mean follow up was 31.84 months.ConclusionsThere were twice as many exotropias as esotropias. Strabismus surgery of the amblyopic eye shows excellent results without the need of new operations. There were no new diplopia cases(AU)