Multifocal stromal infiltrates or "satellite lesions" have been considered a characteristic feature of fungal keratitis. We examined two patients with nontuberculous mycobacterial keratitis who clinically presented with satellite lesions. The keratitis consisted of multifocal stromal infiltrates with indistinct white and fluffy margins. Both patients received topical fortified amikacin therapy ...

Corneal graft survival in 13 patients (14 eyes) receiving oral acyclovir after penetrating keratoplasty for herpes simplex keratitis was compared with that in nine patients (nine eyes) who underwent penetrating keratoplasty for herpes simplex keratitis without postoperative acyclovir. Mean age, duration of disease, and time of follow-up did not differ in the two groups. There were no recurrence...

Although rarely performed, corneal biopsy may be useful in establishing the diagnosis and prompt institution of appropriate management in progressive keratitis of unknown cause. Inability to obtain a definitive diagnosis in a case of chronic keratitis may be related to previous use of antimicrobials that interfere with standard cultures or by the fastidious growth of unusual pathogens in cultur...

OBJECTIVES To establish that the protozoan Acanthamoeba is one of the causative organisms associated with non-contact lens-related keratitis in the Indian population and to develop a simple and sensitive diagnostic assay for clinical testing. DESIGN DNA sequencing of nuclear 18S and 26S ribosomal DNA motifs was performed and compared with the reference Acanthamoeba strains, to establish the g...

Filamentary keratitis (FK) is a chronic and recurrent disorder of the cornea. FK is reportedly associated with various kinds of ocular surface diseases or conditions. Until now, there have been lacks of studies based on quantitative sample analysis concerning FK incidence regularity and inducement characteristics at different ages. This was a retrospective study of 147 patients (162 eyes) with ...

Identification of Acanthamoeba cysts and trophozoites in ocular tissues requires considerable expertise and is often time-consuming. An 18S rRNA gene-based PCR test, highly specific for the genus Acanthamoeba, has recently been reported in the molecular diagnosis of Acanthamoeba keratitis. This PCR assay was compared with conventional microbiological tests for the diagnosis of Acanthamoeba kera...

N ontuberculous mycobacteria rarely cause keratitis. Most reported cases have been described in compromised corneas (ie, after penetrating keratoplasty, refractive surgery, and contact lens wear). The most frequently recovered nontuberculous mycobacteria are the rapid growers, Mycobacterium fortuitum and Mycobacterium chelonae. Occasional cases of keratitis caused by the slower-growing Mycobact...

Bacterial keratitis is a disease of the cornea characterized by pain, redness, inflammation, and opacity. Common causes of this disease are Pseudomonas aeruginosa and Staphylococcus aureus. Animal models of keratitis have been used to elucidate both the bacterial factors and the host inflammatory response involved in the disease. Reviewed herein are animal models of bacterial keratitis and some...

It is well known that lesions affecting the trigeminal nerve may lead to the development ofneurotrophic keratitis (Magendie, I 824), but the incidence and the extent of the keratitis seen by biomicroscopic examination of the cornea, and in particular its effect upon visual acuity, are not well documented. The present study was undertaken to investigate these aspects of keratitis, in corneae ren...

Three patients, women aged 69, 25 and 30 years, with refractory keratitis were found to have a rare infection with Acanthamoeba. All wore soft contact lenses. The frequency of Acanthamoeba keratitis increased in recent years. At present, an efficacious antiprotozoal therapy is available, for instance in the form of polyhexamethylene biguanide and propamidine. In cases of refractory keratitis, t...