Permanencia de la membrana de Descemet y del endotelio receptor tras queratoplastia penetrante. A propósito de un caso clínico / Persistence of Descemet membrane and recipient-type endothelium after keratoplasty. A case report

El objetivo es describir un caso de persistencia de membrana de Descemet tras una queratoplastia penetrante, así como la importancia de la tomografía de coherencia óptica de segmento anterior para su diagnóstico y las posibles opciones terapéuticas. Se presenta un caso clínico y se hace una revisión bibliográfica. Se trata de un varón de 88 años que se sometió a una queratoplastia penetrante debido a una queratopatía bullosa avanzada, tras la cual se produjo una persistencia de la membrana de Descemet receptora. La persistencia pasó inadvertida hasta que el paciente comenzó con disminución de su agudeza visual, y en la exploración oftalmológica se observó la presencia de una membrana opalescente posicionada debajo del endotelio, que fue identificada como la membrana de Descemet del receptor. El tratamiento se llevó a cabo mediante membranotomía Nd:YAG, acorde a lo consultado en la literatura con éxito. Como conclusión se establece que la persistencia inadvertida de la membrana de Descemet es una complicación muy poco frecuente de la queratoplastia penetrante. La tomografía de coherencia óptica de segmento anterior permite un diagnóstico de certeza, y la membranotomía con láser Nd:YAG es uno de los tratamientos indicados

A case is presented of a retained Descemet's membrane after penetrating keratoplasty, highlighting the importance of the anterior segment optical coherence tomography (OCT) in the diagnosis and treatment planning of keratoplasty complications. A review of literature is also presented. An 88 year-old man underwent penetrating keratoplasty for bullous keratopathy. A retained host Descemet's membrane was detected. The retained membrane went unnoticed until the visual acuity decreased. The ophthalmological examination showed the presence of an opalescent membrane located below the endothelium, and was identified as the Descemet membrane of the receptor. Nd:YAG laser membranotomy was performed after the diagnosis. To conclude, it is noted that the inadvertent retention of the host Descemet membrane is a rare complication in penetrating keratoplasty. The anterior segment OCT was used to determine the diagnosis, and Nd:YAG laser membranotomy is an indicated treatment in these cases

Coriorretinitis placoide posterior aguda sifilítica / Acute syphilitic posterior placoid chorioretinopathy

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Persistence of Descemet membrane and recipient-type endothelium after keratoplasty. A case report. / Permanencia de la membrana de Descemet y del endotelio receptor tras queratoplastia penetrante. A propósito de un caso clínico.

A case is presented of a retained Descemet's membrane after penetrating keratoplasty, highlighting the importance of the anterior segment optical coherence tomography (OCT) in the diagnosis and treatment planning of keratoplasty complications. A review of literature is also presented. An 88 year-old man underwent penetrating keratoplasty for bullous keratopathy. A retained host Descemet's membrane was detected. The retained membrane went unnoticed until the visual acuity decreased. The ophthalmological examination showed the presence of an opalescent membrane located below the endothelium, and was identified as the Descemet membrane of the receptor. Nd:YAG laser membranotomy was performed after the diagnosis. To conclude, it is noted that the inadvertent retention of the host Descemet membrane is a rare complication in penetrating keratoplasty. The anterior segment OCT was used to determine the diagnosis, and Nd:YAG laser membranotomy is an indicated treatment in these cases.

Síndrome de Michaelis-Manz. A propósito de un caso clínico / Michaelis-Manz syndrome. A case report

El síndrome de Michaelis-Manz es una tubulopatia de herencia autosómica recesiva asociada a mutaciones en las proteínas claudina 16 y 19 que se encuentran en el túbulo contorneado distal y asa de Henle en el riñón. La claudina 19 también se encuentra en el epitelio pigmentario de la retina. Clínicamente, el cuadro provoca hipomagnesemia, hipercalciuria y nefrocalcinosis que puede dar lugar a insuficiencia renal. Oftalmológicamente presentan colobomas maculares, estafilomas por miopía magna y nistagmo. Presentamos el caso de un varón de 18 años afectado de hipomagnesemia familiar con hipercalciuria y nefrocalcinosis, o síndrome de Michaelis-Manz, asociado a un coloboma macular con una agudeza visual estable

Michaelis-Manz syndrome is an autosomal recessive hereditary tubulopathy associated with mutations in the tight-junction proteins claudin-16 and claudin-19, which are present in the distal convoluted tubule and the loop of Henle in the kidney. Claudin-19 is also expressed in the retinal pigmentary epithelium. The clinical picture causes hypomagnesemia, hypercalciuria and nephrocalcinosis that can lead to renal failure, which is the condition that marks the prognosis of the disease. Ophthalmologically patients can present macular coloboma, myopic staphyloma and nystagmus. We present the case report of an 18-year-old man suffering from hereditary hypomagnesemia, hypercalciuria and nephrocalcinosis, or Michaelis-Manz syndrome, with macular coloboma and stable visual acuities

[Michaelis-Manz syndrome. A case report]. / Síndrome de Michaelis-Manz. A propósito de un caso clínico.

Michaelis-Manz syndrome is an autosomal recessive hereditary tubulopathy associated with mutations in the tight-junction proteins claudin-16 and claudin-19, which are present in the distal convoluted tubule and the loop of Henle in the kidney. Claudin-19 is also expressed in the retinal pigmentary epithelium. The clinical picture causes hypomagnesemia, hyper-calciuria and nephrocalcinosis that can lead to renal failure, which is the condition that marks the prognosis of the disease. Ophthalmologically patients can present macular coloboma, myopic staphyloma and nystagmus. We present the case report of an 18-year-old man suffering from hereditary hypomagnesemia, hypercalciuria and nephrocalcinosis, or Mich-aelis-Manz syndrome, with macular coloboma and stable visual acuities. Keywords. Hypomagnesemia. Hypercalciuria. Nephrocalcinosis. Macular coloboma.

Miasis ocular externa. Serie de casos por larvas Oestrus ovis en Navarra / Ocular external myiasis. A series of cases due to larvae Oestrus ovis in Navarra, Spain

OBJETIVO: Presentamos una serie de casos de miasis ocular externa en nuestra región asociados a unos factores epidemiológicos comunes. Nuestro objetivo es mejorar el conocimiento acerca de su tratamiento. MATERIAL Y MÉTODOS: Se muestran 4 casos clínicos de pacientes con miasis ocular externa causada por larvas del díptero Oestrus ovis. RESULTADOS: La miasis ocular es una infección parasitaria por estados larvarios de moscas. Puede afectar al globo ocular de forma externa y/o interna, siendo más frecuente la externa. El organismo que con mayor frecuencia afecta al ojo es la larva de Oestrus ovis. CONCLUSIÓN: La miasis ocular externa es una afección poco frecuente en humanos. En la serie de casos se establece un factor de riesgo común para la infección: la exposición a actividades ganaderas y/o agrícolas. Un adecuado tratamiento a tiempo puede evitar el paso de la forma externa a la interna, así como sus posibles complicaciones

OBJECTIVE: To report a case series of external ophthalmomyiasis in a region of Spain together with its common epidemiological factors and treatment. MATERIAL AND METHODS: A presentation is made of four clinical cases of patients with external ocular myiasis caused by Oestrus ovis larvae. RESULTS: Ocular myiasis is a parasitic infection by larval stages of flies. It can affect the ocular globe externally and / or internally, with the former being the most frequently found condition. The organism that mainly affects the eyes is the Oestrus ovis larvae. CONCLUSION: Ocular external myiasis is a rare condition that occasionally can occur in humans. In this case series, a common risk factor for infection is established: the previous exposure to livestock and / or agricultural activity. An adequate diagnosis and treatment could avoid the transition from external to internal form, as well as its complications

Ocular external myiasis. A series of cases due to larvae Oestrus ovis in Navarra, Spain. / Miasis ocular externa. Serie de casos por larvas Oestrus ovis en Navarra.

OBJECTIVE: To report a case series of external ophthalmomyiasis in a region of Spain together with its common epidemiological factors and treatment. MATERIAL AND METHODS: A presentation is made of four clinical cases of patients with external ocular myiasis caused by Oestrus ovis larvae. RESULTS: Ocular myiasis is a parasitic infection by larval stages of flies. It can affect the ocular globe externally and / or internally, with the former being the most frequently found condition. The organism that mainly affects the eyes is the Oestrus ovis larvae. CONCLUSION: Ocular external myiasis is a rare condition that occasionally can occur in humans. In this case series, a common risk factor for infection is established: the previous exposure to livestock and / or agricultural activity. An adequate diagnosis and treatment could avoid the transition from external to internal form, as well as its complications.