Staphylococcal enterotoxins are low molecular weight proteins, highly resistant to heat and proteolytic enzyme activity. Posteriorpole staphyloma is present early in life and increases gradually with age. This powerpoint ppt template is designed for effective powerpoint slides with a colorful powerpoint background and theme. In many cases, staphyloma is a resulting condition from severe myopia as the result of severe elongation of the eyeball. Macular oedema me occurs in a wide variety of pathological conditions and accounts for different degrees of vision loss. Optical coherence tomography imaging of macular oedema. To determine the presence and types of staphyloma, the authors focused on pigmentary abnormalities along the presumed edge of staphylomas with at least. This medical powerpoint template will fit presentations on infectious diseases, grampositive bacteria, soil microbial flora, staphylococcal toxins, food poisoning and death, improperlystored food, staphylococcus aureus, etc. Posterior staphylomas are not common in children with pathologic myopia,9 and the incidence of staphyloma is significantly higher in older patients 96. Posterior staphyloma, the posterior outpouching of the wall of the eye, is an important component of the diagnosis of pathologic myopia. Staphylococcus aureus is the most prevalent bovine mastitis pathogen in argentina.
Mrsa is staphylococcus aureuswith resistance to a specific class of antibiotics, penicillinaseresistant penicillins mrsa stands for methicillinresistant. Find powerpoint presentations and slides using the power of, find free. A posterior staphyloma is characterised by scleral ectasia and is pathognomonic for pathological myopia. The eyeball is weak in these areas and the outpouchings can result in significant visual distortions.
Bilateral macular staphylomas in a patient with cone dystrophy. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect. Humans are the natural reservoir for staphylococci. Food poisoning food contaminated with staphylococci released from an infected worker. Winner of the standing ovation award for best powerpoint templates from presentations magazine. Print slide master your text here lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.
Staphyloma definition of staphyloma by medical dictionary. I just had an exam with a retina specialist following a pvd in my right eye. Besides, it is a frequent cause of infections such as skin, wound and deep tissue infections and also more lifethreatening conditions such as. Dr pooja patil principles of ultrasound frequency 10mhz resolution velocity of sound and density of media cornea and lens 1641ms aqueous and vitreous 1532ms phakic vs aphakic.
Diagnosis and treatment of methicillinresistant staphylococcus aureus mrsa is the property of its rightful owner. Staphylococci ppt methicillin resistant staphylococcus. View and download powerpoint presentations on staphylococcus ppt. Staphylococcus aureus food standards australia new zealand. The grade of the posterior staphyloma was determined from the bscan and ascan ultrasonographic images based on the criteria of steidl and pruett. In ascan biometry, one thin, parallel sound beam is emitted from the probe tip at its given frequency of approximately 10 mhz, with an echo bouncing back into the probe tip as the sound beam strikes each interface. In the majority of these patients, ophthalmic nerve blocks were used. Early detection of me is therefore critical for diagnosis and therapeutic management. Posterior staphylomas and scleral curvature in highly. This most commonly occurs posteriorly, although anterior staphyloma also is recognized. Peripapillary staphyloma is usually unilateral and not associated with other systemic or ocular abnormalities. With understanding of the indications for ultrasonography and proper examination technique, one can gather a vast amount of information not possible with clinical examination alone. In eyes with peripapillary and nasal staphylomas, the change of the curvature was slight and the eye had a nasally distorted shape.
Thus, the presence of staphyloma is specific to pathologic. Staphyloma, usually occurs in the posterior pole of the eye ball involving the macular region can also expand anteriorly leading to thinning of. Posterior staphylomas and scleral curvature in highly myopic. Clinical characteristics of posterior staphyloma in eyes with. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease. Proposed classification of posterior staphylomas based on. Staphyloma occur in the front of the eye mostly as a response to trauma or infection in which the scleral architecture has been disturbed and the internal pressure of the eye stretches the weak point causing the protrusion and typical appearance. A staphyloma is an abnormal protrusion of the uveal tissue through a weak point in the eyeball. Diseases of sclera ppt ophthalmology linkedin slideshare. Our staphylococcus powerpoint ppt templates are editable and can be customized according to the requirement.
This leads to a bulging of the posterior portion of the eyeball. Pathological myopia the low vision centers of indiana. Differential diagnosis other entities causing rash, hypotension, or fever that may be confused with staphylococcal tss include. The condition may be minor or serious, depending on the severity of the protrusion and its location on the eyeball. Posterior staphyloma is pathognomonic of degenerative myopia. Staphyloma is the term for a thinning of the outer, white coat of the eye the sclera in which the underlying pigmented tissue then adds its color. Healthy individuals may carry mrsa asymptomatically for periods ranging from a few weeks to many years. Staphyloma is an abnormal protrusion of the eyeball. My specialist told me that my retinas actually look. Staphylomas are abnormal outpouchings of the sclera white of the eye or cornea where the choroid or iris is visible due to thinning of the overlying tissue. One thousand and sixty eyes of 541 patients with high myopia axial length. Mild anemia, leukopenia, and a raised erythrocyte sedimentation rate esr. Posterior staphyloma gopalakrishnan b, baskarajajan b tnoa j. I am 40 yrs old and severely and progressively myopic currently 20 both eyes.
The most predominant type was wide, macular staphyloma 74% of eyes with staphyloma, followed by narrow, macular staphyloma 14% of eyes with staphyloma. If so, share your ppt presentation slides online with. Staph infection and mrsa staphylococcus aureus ppt. Purpose to determine the early signs of posterior staphylomas in highly myopic eyes of younger subjects by sweptsource ultrawidefield optical coherence tomography wfoct. Use the above powerpoint ppt template to create an attractive ppt. April 14, 2020 sarscov2 iggigm rapid test for the diagnosis of covid19 lab diagnosis of viral disease april 4, 2020 collection and transport of nasopharyngeal swab virology april 2, 2020 testing methods for covid19 sarscov2 virology. Coagulase negative staphylococci are a part of the normal skin flora and are also found in the anterior nares. Staphylococcus aureus introduction in 1878, koch observed staphylococci.
In such cases, weakened uveal tissue bulges from the eye. As opposed to coloboma, staphyloma defect is located offcenter from the optic disc, typically temporal to the disc 3. It is also called oxacillinresistant staphylococcus aureus. The ability of this organism to produce enterotoxins is linked to staphylococcal food poisoning. Retinal physician posterior staphyloma in pathologic myopia. Pathological myopia causes the eye to elongate, which in turn stretches and thins the retina and the sclera of the eye. A scan in ascan biometry, one thin, parallel sound beam is emitted from the probe tip, with an echo bouncing back into the probe tip as the sound beam strikes each interface an interface is the. Its frequence is clinically underestimated 10% compared to histopathology 35%. However, in these 24 eyes, a scleral posterior displacement was not found fig 2. Methods this was an observational case series study. Staphylococcus aureus gram positive cocci arranged in grape like clusters cluster formation is dt division in 3 planes and daughter cells remain in close proximity may appear in singles, pairs or short chains some bacteria may have capsules. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from.
A chest x ray revealed bilateral patchy pneumonitis, and an ultrasonogram usg of the. Bscan ultrasonography is an important adjuvant for the clinical assessment of various ocular and orbital diseases. Staphylococcus recognized as a separate genus in 1880 by pasteur. Staphyloma is an abnormal protrusion of the uveal tissue through a weak point of the eye. Anterior chamber collapse syndrome early life trauma syndrome. Fulltext pdf posterior staphyloma and retinal detachment. Ct findings of an enlarged globe with focal posterior bulging and scleraluveal rim. Ppt diagnosis and treatment of methicillinresistant. We present two cases of posterior ocular staphylomas in axial myopia.
Clinical characteristics of posterior staphyloma in eyes. Methicillinresistant staphylococcus aureus mrsa is a bacterium responsible for several difficulttotreat infections in humans. Ppt staphylococcus powerpoint presentation free to. Download staphylococcus powerpoint ppt templates for a good ppt. An interface is the junction between any two media of different densities and velocities, which, in the eye, include the anterior. Rarely staphylomas can be caused by surgical weakening of the sclera at some point. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Morning glory syndrome is a congenital anomaly of the posterior pole which is characterised by an ectasia of the posterior pole of the fundus involving the optic. Abstract 1 abstract staphylococcus aureus is a human commensal colonizing about 30 per cent of the population. The content on this site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. Staphylococcus infection powerpoint template authorstream.
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