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…

BASICS DESCRIPTION • Sturge–Weber syndrome (SWS), also called encephalotrigeminal angiomatosis, is a congenital dermato-oculo-neural syndrome. – Cutaneous nevus flammeus in distribution of trigeminal nerve branches – Ipsilateral glaucoma and diffuse…

Susan E. EdmondsRyan P. Edmonds BASICS DESCRIPTION Condition where there is a permanent loss in vision due to any disease or disorder where some usable vision remains but desired life…

Ramin Schadlu BASICS DESCRIPTION • Presumed ocular histoplasmosis syndrome (POHS) is an inflammatory condition associated with systemic infection by the fungus Histoplasma capsulatum. It may be unilateral or bilateral. –…

Eliza Hoskins BASICS DESCRIPTION • Non-granulomatous anterior uveitis (NGAU) is a broad classification for various inflammatory conditions localized to the iris (iritis), ciliary body (cyclitis), or both (iridocyclitis) that typically…

George L. Spaeth BASICS DESCRIPTION • A systemic disorder characterized by the deposition of a fibrillar material on the lens, ciliary epithelium, zonules, iris, and corneal endothelium, which may be…

BASICS DESCRIPTION Conjunctivitis occurring in the first 4 weeks of life EPIDEMIOLOGY Incidence • US: – Gonococcal: 0.3/1,000 births – Chlamydial: 8.2/1,000 births • Developing countries: 15–60% of live births…

BASICS DESCRIPTION • Vitreoretinal lymphoma (VR lymphoma) is a high-grade type of non-Hodgkin’s lymphoma that involves the retina and vitreous. • The term “primary intraocular lymphoma” is commonly used in…

BASICS DESCRIPTION • Choroidal neovascularization (CNV) is the development of new blood vessels from the choroid layer through a dehiscence or disturbance in Bruch’s membrane into the subretinal space. •…