BASICS DESCRIPTION Optic disc elevation unrelated to increased intracranial pressure (ICP) EPIDEMIOLOGY Incidence 0.3–2.4% (1)[A] Prevalence • 3.4–4.9/1000 clinically, up to 20.4/1000 in autopsy studies (2)[A], (3)[A] • 75% bilateral…
BASICS DESCRIPTION • Ocular toxocariasis is a helminthic disease that is a common cause of posterior uveitis, particularly in children. • 3 major presentations: – Endophthalmitis – Peripheral granuloma –…
BASICS DESCRIPTION • Vision loss in the absence of contributory ocular or neurologic pathology – Multiple labels – Functional – Hysterical – Psychosomatic – Conversion reaction – Munchausen’s syndrome –…
BASICS DESCRIPTION Phototoxicity of the retinal pigment epithelium (RPE) and photoreceptor layers in the fovea due to exposure to sunlight. EPIDEMIOLOGY Incidence Uncommon, but clusters of cases appear around eclipses…
BASICS DESCRIPTION • Toxoplasmic chorioretinitis is usually a unifocal, full thickness chorioretinal lesion. • Frequently arises from border of preexisting chorioretinal scar • Associated with focal vitreous inflammation directly over…
L. Jay Katz BASICS DESCRIPTION A secondary glaucoma resulting from elevated intraocular pressure (IOP) due to intraocular lens (IOL)–associated chronic inflammation and recurrent hyphemas EPIDEMIOLOGY Incidence Uncommon Prevalence Unknown RISK…
Carol L. Shields BASICS DESCRIPTION Benign vascular hamartomatous tumors of the choroid. Present in 2 forms based on extent of choroidal involvement: • Circumscribed choroidal hemangioma (CCH): Solitary tumor with…
L. Jay Katz BASICS DESCRIPTION • Pupillary block is the most common mechanism responsible for angle closure. • It is caused by increased resistance to flow of aqueous from the…
BASICS DESCRIPTION • Homocystinuria compromises a group of inborn errors of methionine metabolism that result in elevated levels of homocysteine in the urine (homocystinuria) and blood (homocysteinemia). • Cystathione β-synthetase…
