RESUMEN
Infectious endophthalmitis is a serious and vision-threatening complication of commonly performed intraocular surgeries such as cataract surgery. The occurrence of endophthalmitis can result in severe damage to the uveal and other ocular tissues even among patients undergoing an uncomplicated surgical procedure. If the infections result from common factors such as surgical supplies, operative or operation theater-related risks, there can be a cluster outbreak of toxic anterior segment syndrome (TASS) or infectious endophthalmitis, leading to several patients having an undesirable outcome. Since prevention of intraocular infections is of paramount importance to ophthalmic surgeons, the All India Ophthalmological Society (AIOS) has taken the lead in the formation of a National Task Force to help ophthalmic surgeons apply certain universal precautions in their clinical practice. The Task Force has prepared a handy checklist and evidence-based guidelines to minimize the risk of infectious endophthalmitis following cataract surgery.
Asunto(s)
Extracción de Catarata , Catarata , Endoftalmitis , Antibacterianos/uso terapéutico , Catarata/epidemiología , Extracción de Catarata/efectos adversos , Brotes de Enfermedades/prevención & control , Endoftalmitis/epidemiología , Endoftalmitis/etiología , Endoftalmitis/prevención & control , Humanos , Complicaciones Posoperatorias/tratamiento farmacológico , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/prevención & controlRESUMEN
PURPOSE: The purpose of this study is to describe the use of commercial digital single light reflex (DSLR) for vitreoretinal surgery recording and compare it to standard 3-chip charged coupling device (CCD) camera. METHODS: Simultaneous recording was done using Sony A7s2 camera and Sony high-definition 3-chip camera attached to each side of the microscope. The videos recorded from both the camera systems were edited and sequences of similar time frames were selected. Three sequences that selected for evaluation were (a) anterior segment surgery, (b) surgery under direct viewing system, and (c) surgery under indirect wide-angle viewing system. The videos of each sequence were evaluated and rated on a scale of 0-10 for color, contrast, and overall quality Results: Most results were rated either 8/10 or 9/10 for both the cameras. A noninferiority analysis by comparing mean scores of DSLR camera versus CCD camera was performed and P values were obtained. The mean scores of the two cameras were comparable for each other on all parameters assessed in the different videos except of color and contrast in posterior pole view and color on wide-angle view, which were rated significantly higher (better) in DSLR camera. CONCLUSION: Commercial DSLRs are an affordable low-cost alternative for vitreoretinal surgery recording and may be used for documentation and teaching.
Asunto(s)
Procesamiento de Imagen Asistido por Computador/métodos , Fotograbar/instrumentación , Grabación en Video/instrumentación , Cirugía Vitreorretiniana , Diseño de Equipo , Humanos , Periodo IntraoperatorioRESUMEN
A 29-year-old man presented with decreased visual acuity in both eyes secondary to exudative retinal detachment resembling Vogt-Koyanagi-Harada disease. Although fluorescein angiographic pictures supported the clinical findings, there was no choroidal thickening evident with ultrasonography. In 3 days he developed increased disc oedema with peripapillary haemorrhages in both eyes. Further evaluation revealed HIV-positive status and a systemic non-Hodgkin's lymphoma. The patient responded favourably to the treatment for systemic non-Hodgkin's lymphoma confirming our diagnosis of intraocular metastasis. In bilateral exudative detachment, an absence of choroidal thickening on ultrasonography and the presence of peripapillary haemorrhages should prompt a systemic evaluation for causes other than Vogt-Koyanagi-Harada disease, especially in HIV-positive patients.