New PDF release: 2008-2009 Basic and Clinical Science Course: Section 10:

By George A. Cioffi, MD

ISBN-10: 1560558830

ISBN-13: 9781560558835

This part underwent significant revision for the 2008-2009 edition.Topics mentioned contain the epidemiologic elements of glaucoma; hereditary and genetic elements; intraocular strain and aqueous humor dynamics; scientific assessment; scientific administration of and surgical treatment for glaucoma. This variation includes up-to-date tables and revised pictures, in addition to a variety of new photos illustrating either sickness entities and surgical innovations.

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Extra resources for 2008-2009 Basic and Clinical Science Course: Section 10: Glaucoma (Basic and Clinical Science Course 2008-2009)

Example text

Reproduced with permission from Shields ed. ) MB Textbook of Glaucoma. 3rd CHAPTER Figure 3-5 Blood in Schlemm's canal. Note work in this patient with elevated episcleral Schlemm's canal. vessels are oriented ner) in the ciliary {Courtesy 3: Clinical Evaluation. the red line posterior to the trabecular mesh. venous pressure resulting in blood reflux into of G. A. Cioffi. MD.! either radially along the iris or circumferentially (in a serpentine manbody face. Vessels that cross the scleral spur to reach the trabecular meshwork are usually abnormal (Fig 3-6).

When used with a direct ophthalmoscope and a high-plus-power lens, they can provide a good view of the fundus, even through a very small pupil. These lenses are especially helpful in individuals with nystagmus or irregular corneas. Inconvenience is the major disadvantage of the direct gonioscopy systems. Indirect gonioscopy is more frequently used in the clinician's office. Indirect gonioscopy also eliminates the total internal reflection at the surface of the cornea. Light reflected from the chamber angle passes into the indirect gonioscopy lens and is reflected by a mirror within the lens.

Aqueous humor is essentially protein free (1/200-1/500 of the protein found in plasma), which allows for optical clarity and reflects the integrity of the blood-aqueous barrier of the normal eye. Albumin accounts for about half of the total protein. Other components include growth factors; several enzymes, such as carbonic anhydrase, lysozyme, diamine oxidase, plasminogen activator, dopamine ~-hydroxylase, and phospholipase A2; and prostaglandins, cyclic adenosine monophosphate (cAMP), catecholamines, steroid hormones, and hyaluronic acid.

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2008-2009 Basic and Clinical Science Course: Section 10: Glaucoma (Basic and Clinical Science Course 2008-2009) by George A. Cioffi, MD

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