Hemicentral Retinal Artery Occlusion
(1) Department of Ophthalmology and Visual Sciences, University of Iowa Hospitals and Clinics, Iowa City, IA, USA In my anatomical study of 106 human central retinal arteries (CRAOs) [1,…
The Retinal Capillaries
(1) Department of Ophthalmology and Visual Sciences, University of Iowa Hospitals and Clinics, Iowa City, IA, USA The capillary bed is the most important component in the entire vascular…
The Cilioretinal Arteries
(1) Department of Ophthalmology and Visual Sciences, University of Iowa Hospitals and Clinics, Iowa City, IA, USA The cilioretinal arteries belong to the posterior ciliary artery system. They usually…
Clinical Evaluation of Patients with Ocular Vascular Occlusive Disorders
(1) Department of Ophthalmology and Visual Sciences, University of Iowa Hospitals and Clinics, Iowa City, IA, USA In my Ocular Vascular Clinic at the University of Iowa Hospitals and…
The Blood-Retinal Barrier
(1) Department of Ophthalmology and Visual Sciences, University of Iowa Hospitals and Clinics, Iowa City, IA, USA The subject of the blood-retinal barrier (BRB) is important in understanding the…
Infections of the Posterior Segment: Ocular Tuberculosis
Fig. 9.1 Slit-lamp biomicroscopy of a 42-year-old woman with strongly positive tuberculin skin test (24 mm induration) shows mutton-fat keratic precipitates and posterior synechiae Fig. 9.2 Slit-lamp biomicroscopy of a…
Infections of the Posterior Segment: Parasitic and Fungal Infections
Fig. 12.1 (a) Fundus photograph shows an active focus of toxoplasmic retinochoroiditis adjacent to an old pigmented scar located at the superotemporal the superior vascular arcade in the vicinity of…
Emergent Ocular Infections
Fig. 15.1 (a) Color fundus photograph of the left eye of a diabetic patient with West Nile virus infection shows inactive multifocal chorioretinitis with a linear clustering of chorioretinal lesions….
Infections of the Eyelids
Fig. 5.1 Hordeolum on the upper eyelid The differential diagnosis of hordeolum includes acute chalazion, basal cell carcinoma, sebaceous gland carcinoma, and squamous cell carcinoma of the eyelid. Hordeola usually…
Infections of the Orbit
Etiologies of preseptal cellulitis Infection of ocular adnexa: conjunctivitis, chalazia, hordeola, blepharitis, dacryocystitis, trauma with or without foreign body, insect bites, skin face wound, dacryoadenitis, impetigo Hematogenous spread Acute ethmoid…
