Osteoma frontoetmoidal con extensión intraorbitaria. A propósito de un caso / Frontoethmoidal osteoma with orbital extension. A case report

CASO CLÍNICO: Presentamos el caso de un osteoma frontoetmoidal derecho con invasión intraorbitaria en un varón de 43 años que comenzó como un cuadro de dolor retroocular con proptosis, inflamación peripalpebral y diplopía binocular por limitación del recorrido muscular. Se realizó cirugía abierta mediante abordaje subcraneal anterior, con extirpación de varios fragmentos de osteoma, cuyo análisis histológico confirmó el diagnóstico. DISCUSIÓN: Los osteomas son tumores benignos formadores de hueso de crecimiento lento. Habitualmente son asintomáticos, hasta que producen complicaciones por efecto masa en el cerebro o en la órbita, o a nivel local, hasta que obstruyen el drenaje del seno donde asientan, generando mucoceles

CASE REPORT: A case is presented of a right frontoethmoidal osteoma with intraorbital invasion in a 43-year-old male, who was seen in the clinic with a proptosis, retro-orbital pain, peri-palpebral inflammation, and binocular diplopia due to muscular route limitation. Open surgery was performed using a subcranial approach, with removal of several fragments of osteoma. Histological analysis confirmed the diagnosis. DISCUSSION: Osteomas are benign bone-forming tumours with slow growth. They are usually asymptomatic until mass effect complications occur in the brain or in the orbit, or locally, generating mucoceles due to sinus drainage obstruction

Frontoethmoidal osteoma with orbital extension. A case report. / Osteoma frontoetmoidal con extensión intraorbitaria. A propósito de un caso.

CASE REPORT: A case is presented of a right frontoethmoidal osteoma with intraorbital invasion in a 43-year-old male, who was seen in the clinic with a proptosis, retro-orbital pain, peri-palpebral inflammation, and binocular diplopia due to muscular route limitation. Open surgery was performed using a subcranial approach, with removal of several fragments of osteoma. Histological analysis confirmed the diagnosis. DISCUSSION: Osteomas are benign bone-forming tumours with slow growth. They are usually asymptomatic until mass effect complications occur in the brain or in the orbit, or locally, generating mucoceles due to sinus drainage obstruction.

Espasmo del reflejo de cerca. Tratamiento con toxina botulínica / Spasm of the near reflex. Treatment with botulinum toxin

CASO CLÍNICO: Mujer de 38 años con diplopía y endotropía. Limitación total de la abducción en AO al explorar las versiones, que se normalizan al explorar el reflejo de los ojos de muñeca. Es diagnosticada de espasmo del reflejo de cerca (ERC) y tratada con inyecciones repetidas de Botox en rectos medios, resolviéndose temporalmente el espasmo. DISCUSIÓN: El ERC se caracteriza por miosis, seudomiopía y convergencia que producen diplopía, visión borrosa, cefalea y endotropía variable, progresiva e intermitente. Se puede confundir con una paresia bilateral del vi nervio. El tratamiento con inyecciones repetidas de bótox puede ser efectivo en algunos casos

CLINICAL CASE: A 38-year old female with diplopia and esotropia, with limitation of ocular abduction in both eyes, with full abduction after doll's head rotation also being observed. She was diagnosed with spasm of the near reflex. Treatment with injections of botulinum toxin in both medial rectus has temporally resolved the convergence spasm. DISCUSSION: Near reflex spasm is characterized as miosis, pseudomyopia, and convergent strabismus that lead to diplopia, blurred vision, headache, and variable, progressive, and intermittent esotropia. As the spasm worsens there will be limited ocular versions and ductions simulating a sixth nerve palsy. Botulinum toxin may be effective in some cases

[Spasm of the near reflex. Treatment with botulinum toxin]. / Espasmo del reflejo de cerca. Tratamiento con toxina botulínica.

CLINICAL CASE: A 38-year old female with diplopia and esotropia, with limitation of ocular abduction in both eyes, with full abduction after doll's head rotation also being observed. She was diagnosed with spasm of the near reflex. Treatment with injections of botulinum toxin in both medial rectus has temporally resolved the convergence spasm. DISCUSSION: Near reflex spasm is characterized as miosis, pseudomyopia, and convergent strabismus that lead to diplopia, blurred vision, headache, and variable, progressive, and intermittent esotropia. As the spasm worsens there will be limited ocular versions and ductions simulating a sixth nerve palsy. Botulinum toxin may be effective in some cases.

Estrabismo y diplopías tras la cirugía refractiva / Strabismus and diplopia after refractive surgery

Objetivo: Analizar los factores que pueden incidir en la descompensación del estrabismo o aparición de diplopía en pacientes sometidos a cirugía refractiva. Métodos: Estudio retrospectivo de 19 pacientes remitidos por presentar descompensación de la motilidad ocular y/o de la visión binocular tras cirugía refractiva. La edad media era 38,89 DS±10,26 años (rango 27 a 63). Catorce pacientes eran miopes, cinco hipermétropes. Cinco de ellos presentaban anisometropía intensa. En tres casos la técnica refractiva fue fotoqueratectomía refractiva, en trece de tipo Lasik, en uno LIO+Lasik y en dos LIO bilateral. Resultados: La prevalencia de diplopía poscirugía refractiva fue 0,12% (5 de los 19 procedían de nuestro centro, sobre una base de datos de 4.135 pacientes sometidos a cirugia refractiva, al realizar el estudio). Todos tenían patología binocular previa a la cirugía. Tras esta, once presentaban endoforia o endotropía, tres exoforia o exotropía, dos desviaciones verticales y tres horizontal y vertical. Las causas de descompensación fueron: factor acomodativo residual, hipercorrección refractiva en sentido hipermetrópico, inestabilidad visual, anisoagudeza, descompensación de una foria en el estrabismo del miope magno, pérdida de supresión, cambio de dominancia y presbicia. Frecuentemente varios factores actuaron simultáneamente. Conclusiones: La aparición de diplopía o estrabismo poscirugía refractiva es poco frecuente. Varios factores pueden incidir en la descompensación, fundamentalmente la hipercorrección miópica y los factores acomodativos y visuales, especialmente en edad présbita, en fuertes anisométropes y miopes magnos(AU)

Objective: To evaluate factors that may decompensate a strabismus or lead to diplopia after refractive surgery. Methods: Retrospective study of 19 patients, who presented with binocular decompensation after refractive surgery. Mean age at surgery was 38.89 SD 10.26 (27-63) years. Fourteen patients were myopic, 5 hyperopic, and 5 of them had a marked anisometropia. The photo-refractive keratectomy procedure was used in 3 cases, laser-assisted in situ keratomileusis (LASIK) in 13, posterior chamber-IOL)+LASIK in one of them, and bilateral IOL in 2 cases. Results: There was a prevalence of strabismus of 0.12%. All of our patients had a binocular pathology previous to the refractive surgery. After surgery, 11 patients had an esophoria or esotropia, 3 exophoria or exotropia, 2 vertical deviations, and 3 horizontal and vertical deviations. Several factors often worked simultaneously in the same patient, such as: residual accommodation, refractive overcorrection (hyperopia), visual instability or anisoacuity, high myopia and phoria decompensation, elimination of suppression, dominance change, and a presbyopic age. Conclusions: All of our patients had a previous binocular pathology. Binocularity may decompensate by several factors but mostly by myopic overcorrection, accommodation and visual factors, particularly in patients close to or in presbyopic age, in anisometropia and high myopia(AU)

[Strabismus and diplopia after refractive surgery]. / Estrabismo y diplopías tras la cirugía refractiva.

OBJECTIVE: To evaluate factors that may decompensate a strabismus or lead to diplopia after refractive surgery. METHODS: Retrospective study of 19 patients, who presented with binocular decompensation after refractive surgery. Mean age at surgery was 38.89 SD 10.26 (27-63) years. Fourteen patients were myopic, 5 hyperopic, and 5 of them had a marked anisometropia. The photo-refractive keratectomy procedure was used in 3 cases, laser-assisted in situ keratomileusis (LASIK) in 13, posterior chamber-IOL)+LASIK in one of them, and bilateral IOL in 2 cases. RESULTS: There was a prevalence of strabismus of 0.12%. All of our patients had a binocular pathology previous to the refractive surgery. After surgery, 11 patients had an esophoria or esotropia, 3 exophoria or exotropia, 2 vertical deviations, and 3 horizontal and vertical deviations. Several factors often worked simultaneously in the same patient, such as: residual accommodation, refractive overcorrection (hyperopia), visual instability or anisoacuity, high myopia and phoria decompensation, elimination of suppression, dominance change, and a presbyopic age. CONCLUSIONS: All of our patients had a previous binocular pathology. Binocularity may decompensate by several factors but mostly by myopic overcorrection, accommodation and visual factors, particularly in patients close to or in presbyopic age, in anisometropia and high myopia.