Afectación iatrogénica de la motilidad ocular por fármacos antitumorales inhibidores de los puntos de control / Iatrogenic impairment of ocular motility by immune checkpoint inhibitors

Se encontraron 4 revisiones sistemáticas que incluían este tipo de iatrogenia ocular, así como numerosos reportes de casos aislados. Los efectos adversos reportados comprenden: paresias oculomotoras, neuropatía óptica, atrofia óptica, síndromes miasteniformes, pseudo-orbitopatía tiroidea, síndrome del ápex orbitario e hipofisitis. La mayoría se manejaron sin interrupción o con interrupción parcial del tratamiento oncológico. Se requirieron tratamientos sistémicos agresivos para el manejo adecuado de la iatrogenia ocular.Es imprescindible que el oftalmólogo se familiarice con los nuevos tratamientos oncológicos ICI, capaces de provocar iatrogenia sobre la motilidad ocular grave e incapacitante para el paciente. La comunicación de efectos adversos con los tratamientos empleados puede ayudar al manejo más adecuado de estos pacientes. La investigación debe ir orientada al diagnóstico diferencial complejo y a optimizar las decisiones sobre los tratamientos oncológicos. (AU)

Cancer therapy relies on new antitumoral drugs called immune checkpoint inhibitors (ICI), which produce long-lasting anti-tumor responses and lengthen survival, but cause autoimmune-type toxicity. The clinical characteristics induced by ICI are not well characterized to date and careful collection of clinical data is required to accurately define its safety profile.We conducted a literature search in the main clinical search engines to identify pharmacological ocular iatrogenic events of ICIs related to ocular motility. Four systematic reviews were found that included this type of ocular iatrogenesis as well as numerous isolated case reports. Reported adverse effects include: oculomotor paresis, optic neuropathy, optic atrophy, myastheniform syndromes, thyroid pseudo-orbitopathy, orbital apex syndrome, and hypophysitis. Most were managed without interruption or with partial interruption of cancer treatment. Aggressive systemic treatments were required for adequate management of ocular iatrogenic events.It is essential that the ophthalmologist become familiar with the new ICI oncological treatments, capable of causing severe and disabling motilidad ocular iatrogenesis for the patient. The communication of adverse effects and the report of the treatments used can help the most appropriate management of these patients. Research should be oriented towards complex differential diagnosis and to optimize decisions on cancer treatments. (AU)

Iatrogenic affectation of ocular motility by immune checkpoint inhibitors.

Cancer therapy relies on new antitumoral drugs called immune checkpoint inhibitors (ICI), which produce long-lasting anti-tumor responses and lengthen survival, but cause autoimmune-type toxicity. The clinical characteristics induced by ICI are not well characterized to date and careful collection of clinical data is required to accurately define its safety profile. We conducted a literature search in the main clinical search engines to identify pharmacological ocular iatrogenic events of ICIs related to ocular motility. Four systematic reviews were found that included this type of ocular iatrogenesis as well as numerous isolated case reports. Reported adverse effects include: oculomotor paresis, optic neuropathy, optic atrophy, myastheniform syndromes, thyroid pseudo-orbitopathy, orbital apex syndrome, and hypophysitis. Most were managed without interruption or with partial interruption of cancer treatment. Aggressive systemic treatments were required for adequate management of ocular iatrogenic events. It is essential that the ophthalmologist become familiar with the new ICI oncological treatments, capable of causing severe and disabling motilidad ocular iatrogenesis for the patient. The communication of adverse effects and the report of the treatments used can help the most appropriate management of these patients. Research should be oriented towards complex differential diagnosis and to optimize decisions on cancer treatments.

Entrenamiento quirúrgico con fantomas en cirugía de estrabismo / Surgical training with phantoms in strabismus surgery

Antecedentes y objetivo La simulación en el aprendizaje quirúrgico responde a necesidades éticas y pragmáticas. Nuestro propósito es describir los efectos sobre las habilidades quirúrgicas de la realización de un taller de entrenamiento quirúrgico en cirugía de estrabismo con fantomas. La preocupación por la seguridad del paciente obliga a plantearse el empleo de simuladores (virtuales y físicos tridimensionales) y modelos animales permite al aspirante practicar sin riesgos los procedimientos antes de enfrentarse a un caso real. Material y métodos Realización de un taller con contenido teórico previo y práctica real con fantomas diseñados para simular cirugía de estrabismo (globo ocular, 6 músculos, conjuntiva, párpado y cápsula de Tenon insertados en cráneo) de dimensiones anatómicas reales. Encuesta de satisfacción y evaluación subjetiva de aprendizaje por parte del alumno y del tutor experto según el modelo de evaluación de Kirkpatrick. Resultados Completaron la encuesta 100% de los 26 alumnos asistentes a dos cursos (15 alumnos en un curso y 11 alumnos en otro curso) y 100% de los tres tutores que participaron en ambos cursos; 20 eran médicos residentes y 20 especialistas en oftalmología. La satisfacción global de los alumnos fue de 8,2 (± 0,68). Conclusiones Según los resultados de la encuesta de evaluación de acciones formativas de Kirkpatrick, la percepción de alumnos y tutores es que el entrenamiento con fantomas en cirugía de estrabismo puede ayudar a mejorar las habilidades necesarias para una práctica segura e independiente. Siendo el objetivo último mejorar la seguridad del paciente (AU)

Background and purpose Simulation in surgical learning responds to ethical and pragmatic needs. Our purpose is to describe the effects on surgical skills of conducting a surgical training workshop on strabismus surgery with phantoms. Concern for patient safety makes it necessary to consider the use of simulators (virtual and three-dimensional physical) and animal models that allow the applicant to safely practice the procedures before facing a real case. Material and methods Realization of a workshop with previous theoretical content and real practice with phantoms designed to simulate strabismus surgery (eyeball, six muscles, conjunctiva, eyelid and Tenon capsule inserted in the skull) of real anatomical dimensions. Satisfaction survey and subjective evaluation of learning by the student and the expert tutor according to the Kirkpatrick evaluation model. Results 100% of the 26 students attending two courses (15 students in one course and 11 students in another course) and 100% of the three tutors who participated in both courses completed the survey. Twenty were resident doctors and 20 specialists in ophthalmology. The overall satisfaction of the students was 8.2 (± 0.68). Conclusions According to the results of the Kirkpatrick training actions evaluation survey, the perception of students and tutors is that training with phantoms in strabismus surgery can help improve the skills necessary for safe and independent practice. The ultimate goal being to improve patient safety (AU)

Surgical training with phantoms in strabismus surgery.

BACKGROUND AND PURPOSE: Simulation in surgical learning responds to ethical and pragmatic needs. Our purpose is to describe the effects on surgical skills of conducting a surgical training workshop on strabismus surgery with phantoms. Concern for patient safety makes it necessary to consider the use of simulators (virtual and three-dimensional physical) and animal models that allow the applicant to safely practice the procedures before facing a real case. MATERIAL AND METHODS: Realization of a workshop with previous theoretical content and real practice with phantoms designed to simulate strabismus surgery (eyeball, 6 muscles, conjunctiva, eyelid and tenon capsule inserted in the skull) of real anatomical dimensions. Satisfaction survey and subjective evaluation of learning by the student and the expert tutor according to the Kirkpatrick evaluation model. RESULTS: Total, 100% of the 26 students attending two courses (15 students in one course and 11 students in another course) and 100% of the 3 tutors who participated in both courses completed the survey. 20 were resident doctors and 20 specialists in ophthalmology. The overall satisfaction of the students was 8.2 (±0.68). CONCLUSIONS: According to the results of the Kirkpatrick training actions evaluation survey, the perception of students and tutors is that training with phantoms in strabismus surgery can help improve the skills necessary for safe and independent practice. The ultimate goal being to improve patient safety.

Treatment for functional epiphora with botulinum toxin-A versus lateral tarsal strip in a randomized trial.

INTRODUCTION: To compare the efficacy of botulinum toxin A (BoNTA) injection into the lacrimal gland versus lateral tarsal strip (LTS) for functional epiphora. METHODS: Randomized clinical trial. Sequential, parallel, non-blinded study design. Patients aged 18 years or older with functional epiphora and a minimum score of 3 in Munk Scale (MS) were randomized to BoNTA or LTS group. Changes in Munk scale, Schirmer test (ST) and quality of life (QoL) were assessed at week 6 and during follow-up until week 30. The mean time without epiphora and the adverse events (AE) were recorded. RESULTS: The final analysis included 25 patients, 12 (21 eyes) assigned to BoNTA (5U/0.05 mL) and 13 (20 eyes) to LTS. At 6 weeks there was an improvement in the MS in BoNTA versus LTS group (-2.48 vs -1.55, P = .0152) and at 12 weeks (-2.68 vs -1.69, P = .0267). A significant decrease was noted in the ST at week 2, 12 and 30 with BoNTA. The QoL improved after both interventions without statistical significance. The mean duration of effectiveness in BoNTA group was 26.2 weeks (range 7.7-36.6) and in LTS group was 24.8 weeks (range 6.7-37.6), P = .937. The main AE were temporary eyelid ptosis in 25% (3/12) of the BoNTA group and surgical scar discomfort in 23% (3/13) of the LTS groups, P = .722. No AE were classified as severe. CONCLUSION: BoNTA injection into the lacrimal gland is a safe and effective treatment for functional epiphora, with a greater decrease in MS at 6 and 12 weeks compared with LTS.

Corticodependent bilateral trochleitis.

Trochleitis is usually a transient and non-disabling inflammation of the trochlea of superior oblique. The case is presented of a difficult to manage bilateral trochleitis in a 29-year-old woman. After an exhaustive aetiological study with neuro-imaging tests, as well as an analysis of autoimmunity and infection, no underlying cause was found. Multiple injections of corticosteroids were required in both eyes, with a partial effect. Surgical intervention was finally decided in order to visually examine the trochlea, take biopsies, and inject methylprednisolone. These were effective in relieving the symptoms. This case is exceptional due to it involving both eyes and its severity, and represented a therapeutic challenge for the clinical team.

Trocleítis bilateral corticodependiente / Corticodependent bilateral trochleitis

La trocleítis es habitualmente una inflamación transitoria, unilateral y no incapacitante de la tróclea del oblicuo superior. Presentamos el caso de una trocleítis bilateral en mujer de 29 años de evolución tórpida. Tras estudio etiológico exhaustivo con pruebas de neuroimagen, análisis de autoinmunidad e infeccioso no se encontró ninguna causa subyacente. Precisó múltiples infiltraciones en ambos ojos con efecto parcial. Finalmente se decidió intervención quirúrgica para exploración visual de la tróclea, toma de biopsias e infiltración de metilprednisolona que resultaron eficaces en el alivio sintomático. Este caso es excepcional por su bilateralidad y severidad, suponiendo un desafío terapéutico para el equipo clínico (AU)

Trochleitis is usually a transient and non-disabling inflammation of the trochlea of superior oblique. The case is presented of a difficult to manage bilateral trochleitis in a 29-year-old woman. After an exhaustive aetiological study with neuro-imaging tests, as well as an analysis of autoimmunity and infection, no underlying cause was found. Multiple injections of corticosteroids were required in both eyes, with a partial effect. Surgical intervention was finally decided in order to visually examine the trochlea, take biopsies, and inject methylprednisolone. These were effective in relieving the symptoms. This case is exceptional due to it involving both eyes and its severity, and represented a therapeutic challenge for the clinical team (AU)

Mitogen-activated protein kinase inhibitor-associated retinopathy (MEKAR). A clinical case.

Mitogen-activated protein kinase kinase (MEK) inhibitors have significantly improved the prognosis of various types of cancer such as metastatic melanoma. However, their use is usually associated with ocular side effects. A retinopathy associated with these agents (MEKAR) has been described, consisting of the development of neurosensory detachments, generally bilateral and multiple, similar to those that appear in the central serous chorioretinopathy (CSC). Generally, optical coherence tomography allows us to differentiate the two conditions. We present the case of a 55-year-old woman in treatment with a MEK inhibitor, who developed bilateral neurosensory detachments and blurred vision, which resolved with the discontinuance of the treatment due to tumour progression.

Retinopatía asociada a inhibidor de la proteinquinasa de activación mitogénica (MEKAR). A propósito de un caso / Mitogen-activated protein kinase inhibitor-associated retinopathy (MEKAR). A clinical case

Los inhibidores de la proteína quinasa de activación mitogénica (MEK) son fármacos utilizados para el tratamiento de neoplasias tales como el melanoma metastásico. Su introducción ha mejorado el pronóstico de estas enfermedades, pero su uso no está exento de complicaciones oculares. Se ha descrito una retinopatía asociada a estos fármacos (MEKAR) consistente en la aparición de desprendimientos neurosensoriales (DNS), generalmente bilaterales y múltiples similares a los que aparecen en la coriorretinopatía serosa central (CSC). En la mayoría de los casos la tomografía de coherencia óptica es suficiente para diferenciar esta entidad de una CSC. Presentamos el caso de una paciente de 55 años que, en este contexto, desarrolló DNS bilaterales que asociaron disminución de agudeza visual y que se resolvieron cuando se suspendió la terapia por progresión tumoral (AU)

Mitogen-activated protein kinase kinase (MEK) inhibitors have significantly improved the prognosis of various types of cancer such as metastatic melanoma. However, their use is usually associated with ocular side effects. A retinopathy associated with these agents (MEKAR) has been described, consisting of the development of neurosensory detachments, generally bilateral and multiple, similar to those that appear in the central serous chorioretinopathy (CSC). Generally, optical coherence tomography allows us to differentiate the two conditions. We present the case of a 55-year-old woman in treatment with a MEK inhibitor, who developed bilateral neurosensory detachments and blurred vision, which resolved with the discontinuance of the treatment due to tumour progression (AU)

Comparativa del control postural entre niños estrábicos y no estrábicos / Comparison of postural control between strabismic and non-strabismic children

OBJETIVO: Comparar el control postural de niños estrábicos frente a niños sin estrabismo. MATERIAL Y MÉTODOS: Cohortes transversales. Se incluyeron un total de 171 niños: 73 niños con endotropia, 24 con exotropia y 74 controles. El control postural fue explorado mediante una plataforma dinamométrica en bipedestación, en varias condiciones: ojos abiertos y cerrados, fijación de mirada cercana y lejana; y sobre suelo duro y gomaespuma. Se estudiaron como variables: el área, la velocidad media, las longitudes en el eje X e Y del desplazamiento del centro de presión. RESULTADOS: Los niños con endotropia y exotropia presentaron valores de velocidad media, longitud X e Y significativamente mayores frente a los controles en el examen de ojos abiertos, distancia de fijación lejana y sobre suelo de gomaespuma; con ojos abiertos, sobre suelo duro y distancia lejana, los valores de las exotropias fueron mayores que los de endotropias y controles. Con ojos cerrados, no hubo diferencias entre los 3 grupos en todas condiciones de exploración descritas, pero sus valores empeoraban frente a sus respectivos con ojos abiertos. CONCLUSIONES: Los niños estrábicos presentaron un peor control postural que los niños no estrábicos. Todos los niños se mostraron más inestables con ojos cerrados frente a con ojos abiertos lo que demuestra que, tanto para estrábicos como no estrábicos, la visión tiene un papel relevante en la estabilidad postural

OBJECTIVE: To compare the postural control of children with strabismus versus non-strabismus children. MATERIAL AND METHODS: Cross-sectional cohort study with a total of 171 children, including 73 children with esotropia, 24 with exotropia, and 74 controls. Postural control was determined using a dynamometric platform in a standing position in various conditions: eyes open and eyes closed, near and gaze fixation, and with and without foam pad. The studied variables were the area, the mean speed, and the lengths in the X and Y axis of the centre of pressure displacement. RESULTS: Children with esotropia and exotropia had significantly higher mean values (speed, lengths of X and Y) compared to controls. In the open-eye, far distance fixation, and on foam pad, as well as under exam conditions; with eyes open, without foam pad, and far distance fixation, the exotropia values were higher than those of endotropia and controls. With eyes closed, there were no differences between the 3 groups under the described examination conditions, but their values were worse compared to their respective ones with eyes open. CONCLUSIONS: The children with strabismus had a worse postural control than the non-strabismus ones. All of the them appeared to be more unstable with eyes closed than with eyes open, which demonstrates that vision plays an important relevant role in postural stability in both strabismus and non-strabismus children

Comparison of postural control between strabismic and non-strabismic children. / Comparativa del control postural entre niños estrábicos y no estrábicos.

OBJECTIVE: To compare the postural control of children with strabismus versus non-strabismus children. MATERIAL AND METHODS: Cross-sectional cohort study with a total of 171 children, including 73 children with esotropia, 24 with exotropia, and 74 controls. Postural control was determined using a dynamometric platform in a standing position in various conditions: eyes open and eyes closed, near and gaze fixation, and with and without foam pad. The studied variables were the area, the mean speed, and the lengths in the X and Y axis of the centre of pressure displacement. RESULTS: Children with esotropia and exotropia had significantly higher mean values (speed, lengths of X and Y) compared to controls. In the open-eye, far distance fixation, and on foam pad, as well as under exam conditions; with eyes open, without foam pad, and far distance fixation, the exotropia values were higher than those of endotropia and controls. With eyes closed, there were no differences between the 3 groups under the described examination conditions, but their values were worse compared to their respective ones with eyes open. CONCLUSIONS: The children with strabismus had a worse postural control than the non-strabismus ones. All of the them appeared to be more unstable with eyes closed than with eyes open, which demonstrates that vision plays an important relevant role in postural stability in both strabismus and non-strabismus children.

Síndrome de Radius-Maumenee: más allá de un reto diagnóstico y terapéutico / Radius-Maumenee syndrome: Beyond a diagnostic and therapeutic challenge

El síndrome de Radius-Maumenee (SRM) o hipertensión venosa epiescleral idiopática (HVEI) es un trastorno infrecuente que cursa con una dilatación de los vasos epiesclerales y un aumento de la presión intraocular (PIO). Es un síndrome que constituye un reto diagnóstico y terapéutico para el oftalmólogo. Presentamos un caso en el que, a pesar de hacer un diagnóstico precoz, e intentar planificar un tratamiento orientado a eludir la efusión coroidea, no hemos podido evitar su aparición, teniendo que enfrentarnos a ella en 2 ocasiones con buenos resultados funcionales hasta el momento

Radius-Maumenee syndrome (SRM) or idiopathic episcleral venous hypertension (HVEI) is an uncommon disorder that occurs with a dilation of the episcleral vessels and an increase in intraocular pressure (IOP). It is a syndrome that constitutes a diagnostic and therapeutic challenge for the ophthalmologist. A case is presented in which, despite making an early diagnosis and trying to plan a treatment aimed at avoiding choroidal effusion, its appearance was unavoidable, having to treat it twice with good functional results so far

Radius-Maumenee syndrome: Beyond a diagnostic and therapeutic challenge. / Síndrome de Radius-Maumenee: más allá de un reto diagnóstico y terapéutico.

Radius-Maumenee syndrome (SRM) or idiopathic episcleral venous hypertension (HVEI) is an uncommon disorder that occurs with a dilation of the episcleral vessels and an increase in intraocular pressure (IOP). It is a syndrome that constitutes a diagnostic and therapeutic challenge for the ophthalmologist. A case is presented in which, despite making an early diagnosis and trying to plan a treatment aimed at avoiding choroidal effusion, its appearance was unavoidable, having to treat it twice with good functional results so far.

Membrana amniótica en el tratamiento quirúrgico de diplopía posblefaroplastia / Amniotic membrane in the surgical treatment of post-blepharoplasty diplopia

Presentamos 2 casos consecutivos de diplopía vertical tras cirugía de blefaroplastia. Se trata de 2 mujeres de 41 y 63 años que presentaron diplopía binocular vertical tras blefaroplastia inferior bilateral con abordaje transconjuntival. La diplopía se presentó en ambos casos en el postoperatorio inmediato, siendo en uno de los casos estable y en otro progresiva. Con la sospecha de estrabismo restrictivo se planteó explorar los músculos extraoculares afectados, eliminar las adherencias y recubrimiento de los vientres musculares con membrana amniótica. La diplopía posblefaroplastia es una complicación infrecuente, pero muy grave, dadas las expectativas de estos pacientes. La literatura describe, hasta la fecha, resultados poco satisfactorios en su manejo. Consideramos que el recubrimiento muscular con membrana amniótica puede aportar mejores resultados en el manejo quirúrgico de estos pacientes, debido a su efecto antiinflamatorio y antiadherencial

Two consecutive cases are presented of vertical diplopia after blepharoplasty. They concern two women aged 41 and 63 years with vertical binocular diplopia after bilateral lower blepharoplasty using a trans-conjunctival approach. The diplopia was presented in both cases in the immediate postoperative period, being stable in one of the cases and progressive in the other. With the suspicion of restrictive strabismus, it was decided to explore the affected extra-ocular muscles, eliminate adhesions and coat the muscular bellies with amniotic membrane. Post-blepharoplasty diplopia is an uncommon, but very serious complication, given the expectations of these patients. The current literature reports unsatisfactory results in its management. In this study, it is considered that the muscular covering with amniotic membrane can provide better results in the surgical management of these patients, due to its anti-inflammatory and anti-adherence effect

Amniotic membrane in the surgical treatment of post-blepharoplasty diplopia. / Membrana amniótica en el tratamiento quirúrgico de diplopía posblefaroplastia.

Two consecutive cases are presented of vertical diplopia after blepharoplasty. They concern two women aged 41 and 63 years with vertical binocular diplopia after bilateral lower blepharoplasty using a trans-conjunctival approach. The diplopia was presented in both cases in the immediate postoperative period, being stable in one of the cases and progressive in the other. With the suspicion of restrictive strabismus, it was decided to explore the affected extra-ocular muscles, eliminate adhesions and coat the muscular bellies with amniotic membrane. Post-blepharoplasty diplopia is an uncommon, but very serious complication, given the expectations of these patients. The current literature reports unsatisfactory results in its management. In this study, it is considered that the muscular covering with amniotic membrane can provide better results in the surgical management of these patients, due to its anti-inflammatory and anti-adherence effect.

Presentación atípica de la enfermedad de Best / Atypical presentation of Best Disease

CASO CLÍNICO: Varón de 43 años atendido por agudeza visual reducida, inicialmente atribuida a ambliopía estrábica. Funduscópicamente se observaban extensos desprendimientos neurosensoriales (DNS) bilaterales en el polo posterior, delimitados por acumulación de lipofucsina. Un hijo suyo de 3 años fue también explorado y, en el fondo de ojo, presentaba DNS circunscritos con presencia de pseudohipopion en el ojo derecho y fibrosis cicatricial en el ojo izquierdo. Para ambos, el índice de Arden estaba disminuido en la electrooculografía, y el estudio genético reveló una misma mutación del gen BEST1. Discusión: La existencia de amplios DNS bilaterales puede ser una forma inusual de presentación de la enfermedad de Best. La historia familiar, la electrooculografía y el estudio genético avalaron este diagnóstico

CLINICAL CASE: A 43-year-old man was treated for reduced visual acuity, initially attributed to strabismic amblyopia. On fundus examination, bilateral neurosensory detachments (NSD) were observed in posterior pole, surrounded by deposits of lipofuscin. His 3-year-old son was also examined and circumscribed NSD was observed with the presence of pseudohypopyon in OD and a fibrosis scar in OS. The Arden ratio were decreased in electrooculography (EOG) in both patients, and genetic studies revealed a single mutation of the BEST1 gene. DISCUSSION: The existence of extensive bilateral NSD may be an unusual form of presentation of Best disease. Family history, EOG, and genetic study supported this diagnosis

Atypical presentation of Best Disease. / Presentación atípica de la enfermedad de Best.

CLINICAL CASE: A 43-year-old man was treated for reduced visual acuity, initially attributed to strabismic amblyopia. On fundus examination, bilateral neurosensory detachments (NSD) were observed in posterior pole, surrounded by deposits of lipofuscin. His 3-year-old son was also examined and circumscribed NSD was observed with the presence of pseudohypopyon in OD and a fibrosis scar in OS. The Arden ratio were decreased in electrooculography (EOG) in both patients, and genetic studies revealed a single mutation of the BEST1 gene. DISCUSSION: The existence of extensive bilateral NSD may be an unusual form of presentation of Best disease. Family history, EOG, and genetic study supported this diagnosis.

[Appraisal of the formation of afterimages by means of a new computer application in patients with demyelinating optic neuropathies]. / Valoracion de la formacion de postimagenes mediante una nueva aplicacion informatica en pacientes con neuropatias opticas desmielinizantes.

INTRODUCTION: The perception of colour is one of the visual functions affected by optic neuritis. Most of the tests currently available for evaluating dichromatism are based on assessing the hue, but no clinical studies have been conducted to investigate the formation of afterimages on the retina of these patients. AIMS: To evaluate the dichromatism acquired in demyelinating optic neuritis by means of the formation of afterimages on the retina. SUBJECTS AND METHODS: This is an observation-based, cross-sectional, case-control study. The cases are patients with at least one bout of optic neuritis and confirmed multiple sclerosis. A healthy age- and sex-paired control was selected for each case. The main variable is the capacity to see afterimages after saturation of the retinal photoreceptor cells. A specific computer application was developed to evaluate this phenomenon. RESULTS: The sample consisted of 30 cases and 30 controls (63% females; mean age: 33 years; range: 18-48 years). The cases showed less probability of seeing the afterimage (36.6% of the cases, while none of the controls failed to see an afterimage) and, if it was seen, it remained for less time. The ROC curve shows a sensitivity of 86.3% and a specificity of 83.3%. The odds ratio was 5 (95% confidence interval: 2.21-11.3) for the probability of seeing the afterimage in controls versus cases. CONCLUSIONS: Patients with at least one episode of optic neuritis presented a lower capacity to observe afterimages. The test is therefore useful in the assessment and follow-up of functional damage in demyelinating optic neuropathies.

TITLE: Valoracion de la formacion de postimagenes mediante una nueva aplicacion informatica en pacientes con neuropatias opticas desmielinizantes.Introduccion. En las neuritis opticas se afecta, entre otras funciones visuales, la percepcion del color. La mayoria de las pruebas existentes para evaluar discromatopsias se basa en evaluar el matiz, pero no se ha estudiado clinicamente la formacion de postimagenes en la retina en estos pacientes. Objetivo. Evaluar la discromatopsia adquirida en las neuritis opticas desmielinizantes mediante la formacion de postimagenes en la retina. Sujetos y metodos. Estudio observacional, transversal, de casos y controles. Los casos son pacientes con al menos un episodio de neuritis optica y esclerosis multiple confirmada. Se selecciono un control sano por cada caso, emparejado por edad y sexo. La variable principal es la capacidad de ver postimagenes tras saturar los fotorreceptores retinianos. Para evaluar dicho fenomeno se desarrollo una aplicacion informatica especifica. Resultados. La muestra comprende 30 casos y 30 controles (63% mujeres; edad media: 33 años; rango: 18-48 años). Los casos mostraron menor probabilidad de ver la postimagen (el 36,6% de los casos y ningun control no veian postimagen) y, en caso de verla, una menor permanencia de ella. La curva ROC muestra una sensibilidad del 86,3% y una especificidad del 83,3%. La odds ratio era de 5 (intervalo de confianza al 95%: 2,21-11,3) para la probabilidad de ver la postimagen en los controles frente a los casos. Conclusiones. Los pacientes con al menos un episodio de neuritis optica presentan una menor capacidad de observar postimagenes, por lo que la prueba es util para la evaluacion y el seguimiento del daño funcional en neuropatias opticas desmielinizantes.

Estudio comparativo sobre eficacia y seguridad de bevacizumab frente a mitomicina C como adyuvantes a trabeculectomía / Comparison study on the efficacy and safety of bevacizumab versus mitomycin C as adjuvants in trabeculectomy

OBJETIVO: Comparar la eficacia y seguridad de bevacizumab como adyuvante a la trabeculectomía frente a mitomicina C. MÉTODO: Se diseñó un estudio comparativo prospectivo no aleatorizado de 180 días de duración con 49 ojos de 45 pacientes: 22 ojos en el grupo de bevacizumab (BVZ) y 27 ojos en el grupo de mitomicina C (MMC). Se estableció como éxito completo: presión intraocular (PIO) menor de 18 mmHg sin fármacos adyuvantes. Se realizaron controles en los días 1, 7, 30, 90 y 180 poscirugía. Se evaluaron: agudeza visual, PIO media en cada una de las visitas, procedimientos adicionales y número de fármacos necesarios para el control de la PIO poscirugía, así como posibles complicaciones posquirúrgicas tanto locales como sistémicas. RESULTADOS: Al final del estudio en la PIO media postoperatoria fue 13,4 ± 3,5 mmHg (rango 8-20) en el grupo del BVZ y de 11,6 ± 2,6 mmHg (rango 7-17) en el grupo de la MMC sin encontrar diferencias estadísticamente significativas (p = 0,08). Se alcanzó el éxito completo al final del seguimiento en un 77,2% (17 de 22) de los pacientes en el grupo de BVZ y en un 96,2% (26 de 27) en el grupo de MMC, siendo esta diferencia estadísticamente significativa (p = 0,024). Un mayor número de pacientes requirió fármacos adicionales para el control de la presión en el grupo de BVZ al final del seguimiento: 0,36 ± 0,72 fármacos frente a 0,03 ± 0,19 fármacos en el de la MMC (p = 0,018). Se encontraron 3 casos de ampollas avasculares en el grupo del BVZ y ninguno en el grupo de MMC. Ningún paciente desarrolló complicaciones derivadas del uso de los medicamentos. CONCLUSIONES: Bevacizumab parece ser un fármaco eficaz y seguro como adyuvante a trabeculectomía, sin embargo la reducción de la presión es algo mayor con la MMC con una menor necesidad de medicación hipotensora. Existe la posibilidad de formación de ampollas avasculares con el uso de bevacizumab intraoperatorio

OBJECTIVE: The objective of this study is to compare the efficacy and safety of bevacizumab versus mitomycin C as an adjuvant anti-scarring agent in Trabeculectomy. METHODS: A prospective, comparative, non-randomized, interventional study was conducted on a case series. A total of 49 eyes of 45 patients with uncontrolled glaucoma were recruited: 22 eyes in the bevacizumab (BVZ) group, and 27 eyes in the mitomycin C (MMC) group. Complete success was defined as intraocular pressure (IOP) less than 18 mmHg without any antiglaucoma medications. Follow-up visits were made on 1, 7, 30, 90 and 180 days after the surgery. Visual acuity, mean IOP, number of antiglaucoma medications and additional procedures to control IOP were recorded at each follow up visit. Local and systemic complications were also noted. RESULTS: At the end of the follow-up there were no significant differences in mean IOP between groups: mean IOP was 13.4 ± 3.5 mmHg (range 8-20) in the BVZ group and 11.6 ± 2.6 mmHg (range 7-17) in the MMC group (P=.08). Complete success was achieved in 77.2% (17 out of 22) in the BVZ group and 96.2% (26 out of 27) in the MMC group, which was a statistically significant difference (P=.024). More patients required antiglaucoma medications to control IOP in the BVZ group at the end of the study: 0.36 ± 0.72 medications versus 0.03 ± 0.19 medications in the MMC group (P=.018). Three patients developed avascular cystic blebs in the BVZ group. None of the patients suffered any ocular or systemic complications related to the use of these agents. CONCLUSION: Bevacizumab could be a safe and effective anti-scarring agent; however IOP reduction appears to be greater with MMC, and also less antiglaucoma medications are needed with this anti-scarring agent. Bevacizumab could favor the formation of avascular cystic blebs

[Comparison study on the efficacy and safety of bevacizumab versus mitomycin C as adjuvants in trabeculectomy]. / Estudio comparativo sobre eficacia y seguridad de bevacizumab frente a mitomicina C como adyuvantes a trabeculectomía.

OBJECTIVE: The objective of this study is to compare the efficacy and safety of bevacizumab versus mitomycin C as an adjuvant anti-scarring agent in Trabeculectomy. METHODS: A prospective, comparative, non-randomized, interventional study was conducted on a case series. A total of 49 eyes of 45 patients with uncontrolled glaucoma were recruited: 22 eyes in the bevacizumab (BVZ) group, and 27 eyes in the mitomycin C (MMC) group. Complete success was defined as intraocular pressure (IOP) less than 18 mmHg without any antiglaucoma medications. Follow-up visits were made on 1, 7, 30, 90 and 180 days after the surgery. Visual acuity, mean IOP, number of antiglaucoma medications and additional procedures to control IOP were recorded at each follow up visit. Local and systemic complications were also noted. RESULTS: At the end of the follow-up there were no significant differences in mean IOP between groups: mean IOP was 13.4 ± 3.5mmHg (range 8-20) in the BVZ group and 11.6 ± 2.6 mmHg (range 7-17) in the MMC group (P=.08). Complete success was achieved in 77.2% (17 out of 22) in the BVZ group and 96.2% (26 out of 27) in the MMC group, which was a statistically significant difference (P=.024). More patients required antiglaucoma medications to control IOP in the BVZ group at the end of the study: 0.36 ± 0.72 medications versus 0.03 ± 0.19 medications in the MMC group (P=.018). Three patients developed avascular cystic blebs in the BVZ group. None of the patients suffered any ocular or systemic complications related to the use of these agents. CONCLUSION: Bevacizumab could be a safe and effective anti-scarring agent; however IOP reduction appears to be greater with MMC, and also less antiglaucoma medications are needed with this anti-scarring agent. Bevacizumab could favor the formation of avascular cystic blebs.