Antimicrobial Agents in Ophthalmology
1. The use of antibiotics for treatment of ocular infections should be initiated whenever a patient has an infection which is microbial in nature and the organism is susceptible to…
OPHTHALMOLOGY
Molecular Diagnosis of Ocular Infections
98. Sugita S, Kamoi K, Ogawa M, Watanabe K, Shimizu N, Mochizuki M. Detection of Candida and Aspergillus species DNA using broad-range real-time PCR for fungal endophthalmitis. Graefes Arch Clin…
Infections of the Lacrimal System
I. Viruses Mumps, measles, influenza, Epstein-Barr virus, herpes zoster, herpes simplex II. Bacteria Staphylococci, streptococci, Neisseria gonorrhoeae, Mycobacterium tuberculosis, Mycobacterium leprae, Treponema pallidum, Chlamydia trachomatis, Lymphogranuloma venereum III. Fungi Phycomycetes…
Infectious Conjunctivitis
Chemical Usually self-limiting; possibly irrigation with warm saline Gonococcal Hospitalization; isolation (at least 24 h after therapy is initiated) IV aqueous penicillin G 100,000 units/kg/day in four doses daily for…
Infectious Keratitis
Exogenous factors Endogenous local conditions Systemic factors Contact lens wear Lid disorders Alcoholism Topical corticosteroids 1. Lagophthalmos Allergies Topical antibiotics 2. Entropion Blood dyscrasias Trauma 3. Ectropion Collagen-vascular disease Glaucoma…
The Visual Field
(1) University of Sydney, Sydney, Australia Overview The visual field is the portion of space visible to a single stationary eye. The normal visual field extends 90° temporally, 70°…
Contrast Sensitivity
(1) University of Sydney, Sydney, Australia Overview: Relevance of Contrast Sensitivity to Daily Function 1. Contrast sensitivity and visual function Contrast is a measure of the lightness or darkness…
The Retina
(1) University of Sydney, Sydney, Australia Structure and Development Overview The retina is a highly specialized neural tissue that converts light into neural signal. It lines the inner surface…
Temporal Properties of Vision
(1) University of Sydney, Sydney, Australia Overview 1. The visual system in a changing environment The visual system responds to variation in light over time, allowing instantaneous interpretation of…
The Ciliary Body and Aqueous Fluid Formation and Drainage
(1) University of Sydney, Sydney, Australia Ciliary Body Overview The ciliary body is continuous with the iris anteriorly and the choroid posteriorly. Together these three tissues make up the…
