“…Bacterial keratitis secondary to contact lens may present as multifocal with more diffuse epithelial and stromal infiltrate. 17, 18Fig. 2A: The clinical appearance of a partially treted bacterial (polymicrobial) keratitis with significant hypopyon (Courtesy of Dr. Kalantan H).…”
Section: Sample Collection and Preparationmentioning
The incidence of microbial keratitis (MK) is variable worldwide with an estimated 1.5–2 million cases of corneal ulcers in developing countries. The complications of MK can be severe and vision threatening. Therefore, proper diagnosis of the causative organism is essential for early successful treatment. Accurate sampling of microbiological specimens in MK is an important step in identifying the infective organism. Corneal scrapping, tear samples and corneal biopsy are examples of specimens obtained for the investigative procedures in MK. Ophthalmologists especially in an emergency room setting should be aware of the proper sampling techniques based on their microbiology-related basic information for each category of MK. This review article briefly describes the clinical presentation and defines in details the best updated diagnostic methods used in different types of MK. It can be used as a guide for ophthalmology trainees and general ophthalmologists who may be handling such cases at initial presentation.
“…Bacterial keratitis secondary to contact lens may present as multifocal with more diffuse epithelial and stromal infiltrate. 17, 18Fig. 2A: The clinical appearance of a partially treted bacterial (polymicrobial) keratitis with significant hypopyon (Courtesy of Dr. Kalantan H).…”
Section: Sample Collection and Preparationmentioning
The incidence of microbial keratitis (MK) is variable worldwide with an estimated 1.5–2 million cases of corneal ulcers in developing countries. The complications of MK can be severe and vision threatening. Therefore, proper diagnosis of the causative organism is essential for early successful treatment. Accurate sampling of microbiological specimens in MK is an important step in identifying the infective organism. Corneal scrapping, tear samples and corneal biopsy are examples of specimens obtained for the investigative procedures in MK. Ophthalmologists especially in an emergency room setting should be aware of the proper sampling techniques based on their microbiology-related basic information for each category of MK. This review article briefly describes the clinical presentation and defines in details the best updated diagnostic methods used in different types of MK. It can be used as a guide for ophthalmology trainees and general ophthalmologists who may be handling such cases at initial presentation.
“…As mentioned before, the number of CCL wearers has been increasing over time, since some people use them for aesthetic purposes, without knowing the risks that their inappropriate use implicates. Consequently, the number of cases of microbial keratitis associated with its use has increased [ 7 ]. Particularly in United States CCL are considered medical devices, and their safety and efficacy are monitored [ 27 ].…”
Section: Discussionmentioning
confidence: 99%
“…Despite contact lenses (CL) correct vision problems, it is well known that their use is a leading risk factor for AK [ 1 ], including cosmetic contact lenses (CCL) [ 7 ], since they can be vectors of amoebae, may impact negatively the eye's natural defenses and favor microbial colonization and survival [ [8] , [9] , [10] ]. Prolonged CL use induces epithelial hypoxia, inhibition of the shedding of tears, and surface erosion compromising its integrity, which increases the risk of infection [ 11 , 12 ].…”
“…De plus, le développement des lentilles en silicone hydrogel semble avoir permis une diminution du risque infectieux [5,9]. Parallèlement à ces études épidémiologiques menées essentiellement en Grande-Bretagne ou en Australie, de nombreux cas reportés de kératite infectieuse sous lentilles de contact mettent en lumière divers facteurs de risque potentiels comme le port de lentilles cosmétiques ou des erreurs grossières dans le maniement et l'entretien des lentilles [10][11][12][13][14]. Cependant, la puissance de ces « cas reportés » est faible.…”
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