Read e-book online 2011-2012 Basic and Clinical Science Course, Section 10: PDF

By George A. Cioffi MD

Themes on glaucoma contain the epidemiologic points; hereditary and genetic elements; intraocular strain and aqueous humor dynamics; and scientific assessment, scientific administration and surgical treatment. comprises various pictures illustrating disorder entities and surgical options. final significant revision 2008 2009.

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Read or Download 2011-2012 Basic and Clinical Science Course, Section 10: Glaucoma (Basic & Clinical Science Course) PDF

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Additional resources for 2011-2012 Basic and Clinical Science Course, Section 10: Glaucoma (Basic & Clinical Science Course)

Example text

Readings obtained with these instruments vary widely, and [OP is often overestimated with these instruments. The instruments are often used in large-scale glaucoma -screening programs or by nonmedical health care providers. The group of portable electro nic applanation devices (eg, Tono- Pen) that applanate a very small area of the cornea are particularly useful in the presence of corneal scars or edema. The pneumatic tonometer, or pneumatonometer, has a pressure-sensi ng device that consists of a gas-filled chamber covered by a Silastic diaphragm.

Alte rnatively, changes in systemic hemodynamics may result in perfusion deficits, even at normal lOP. Such hypothetical derangement could be related to abnormal vessels or to circulating vasoactive substances, for example. Current thinking regarding glaucomatous optic neuropathy recognizes that both vascular and mechanical factors probably contribute to damage. The glaucomas are likely a heterogeneous family of disorders, and the ganglion cell death seen in glaucomatous optic neuropathy may be mediated by many factors.

J Glaucoma. 2001;10(5 Suppll): S45- S48. Doherty M], Zaman ML. Human corneal thickness and its impact on intraocular press ure measures: a review and meta-analysis approach. Surv Ophthalm ol. 2000;44:367- 408 . Gordon MA, Beiser JA, Brandt JA, et al. The Ocular Hypertension Treatment Study: baseline fac tors that pred ict the onset of primary open-angle glaucoma. Arch Ophtha/mol. 2002; 120( 6);7 14- 720. Mills RP. If intraocular pressure measurement is on ly an estimate-then what? Ophthalmology.

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