Type of sample Expected organisms Stains/media/incubation Aqueous fluid/vitreous fluid/vitreous biopsy • Bacteria, fungi • Fungi • Gram, Giemsa • Calcofluor white, Gomori methenamine silver Bacteria (aerobic and anaerobic) and fungi…
Fig. 22.1 Structure of corticosteroid Mechanism of Action Corticosteroids exert their anti-inflammatory activity through the following mechanisms: They cause constriction of blood vessels, which reduces the vascular permeability, thereby reducing…
Inclusion criteria Exclusion criteria Phacoemulsification cataract surgery with IOL implantation as a single procedure without any additional surgery Patients under 18 years of age Patients allergic to penicillin and cephalosporins Patients…
(Courtesy:https://www.neb.com/~/media/NebUs/Page%20Images/Ap plications/DNA%20Amplification%20and%20PCR/pcr.jpg) Box 1 Polymerase chain reaction (PCR) In cycle 1 two primers anneal to denatured DNA at opposite sides of the target region and are extended by DNA polymerase…
Drug Class of drug Mechanism of action Susceptible organisms Amikacin Aminoglycoside Inhibits protein synthesis by binding to 30S subunit of ribosomes Aerobic GNBs, Pseudomonas aeruginosa Amphotericin B Polyene antibiotics Binds…
Fig. 19.1 Post-cataract surgery Nocardia endophthalmitis. (Top left) Yellow-white nodule at surgical section and hypopyon; (top right) anterior chamber nodule with fibrin formation; (bottom left) yellow-white nodules at the tunnel…
Fig. 29.1 Photograph demonstrating the “prep” for cataract surgery. Note the surgical drape, eyelid speculum, and evidence of povidone-iodine (Image courtesy of Guillermo Amescua, MD) Generally, the most likely causative…
Fig. 10.1 Constellation signs of endogenous endophthalmitis. (Top left) Minimal anterior segment inflammation in a patient with dense vitreous exudates due to endogenous endophthalmitis; (Top right) dense vitritis with hazy…
Fig. 1.1 Clinical classification of endophthalmitis Some of the definitions frequently used in endophthalmitis are listed in Table 1.1. Table 1.1 Definitions of endophthalmitis Category Name Comments Time [4] Acute…
Association Ocular General Strong Thin and cystic bleb with late-onset bleb leak Midrange Inferior or nasal bleb, intraoperative MMC usage, conjunctivitis, blepharitis, trabeculectomy alone compared to combined procedure, chronic antibiotic…
