By American Academy of Ophthalmology, George A. Cioffi MD
Presents a accomplished dialogue of glaucoma, together with epidemiology and the social and fiscal affects of the sickness; hereditary and genetic components; intraocular strain and aqueous humor dynamics; and medical review and surgical treatment. some of the periods of clinical treatment for glaucoma are defined by way of efficacy, mechanism of motion and security. includes a number of pictures illustrating sickness entities and surgical techniques.
Upon finishing touch of part 10, readers might be capable to:
Identify the epidemiologic gains of glaucoma, together with the social and financial affects of the disease
Describe the medical evaluate of the glaucoma sufferer, together with heritage and normal exam, gonioscopy, optic nerve exam, and visible field
Describe the scientific good points, review, and therapy of basic open-angle glaucoma and normal-tension glaucoma
List a number of the medical positive factors of and healing techniques for the first and secondary open-angle glaucomas
Read Online or Download 2014-2015 Basic and Clinical Science Course (BCSC): Section 10: Glaucoma PDF
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Additional info for 2014-2015 Basic and Clinical Science Course (BCSC): Section 10: Glaucoma
CHAPTER 3: Clinical Evaluation • 35 • The scleral spur is a thin, pale stripe between the ciliary face and the pigmented zone of the trabecular meshwork. The inferior portion of the angle is generally wider and is the easiest place in which to locate the landmarks. After verifying the landmarks, the clinician should examine the entire angle in an orderly manner (see Table 3-1). Proper management of glaucoma requires that the clinician determine not only whether the angle is open or closed, but also whether other pathologic findings, such as angle recession or low peripheral anterior synechiae (PAS), are present.
Patients with neovascular glaucoma have trunklike vessels crossing the ciliary body and scleral spur and arborizing over the trabecular meshwork. Contraction of the myofibroblasts accompanying these vessels leads to PAS formation. It is important to distinguish PAS from iris processes (the uveal meshwork), which are open and lacy and follow the normal curve of the angle. The angle structures are visible in the open spaces between the processes. Synechiae are more solid or sheetlike (Fig 3-7). They are composed of iris stroma and obliterate the angle recess.
The intraorbital optic nerve is divided into 2 components: the anterior optic nerve and the posterior optic nerve. The anterior optic nerve extends from the retinal surface to the retrolaminar region, just where the nerve exits the posterior aspect of the globe. 7 mm as measured with planimetry, but it varies widely among individuals and ethnic groups; the optic nerve expands to approximately 3-4 mm immediately upon exiting the globe. The increase in size is accounted for by axonal myelination, glial tissue, and the beginning of the leptomeninges (optic nerve sheath).