2014-2015 Basic and Clinical Science Course (BCSC): Section by American Academy of Ophthalmology, James C. Bobrow MD

By American Academy of Ophthalmology, James C. Bobrow MD

Studies the anatomy, body structure, embryology and pathology of the lens. Covers the epidemiology, evaluate and administration of cataracts and provides an outline of lens and cataract surgical procedure, together with exact events. part eleven additionally walks the reader via making a suitable differential prognosis and designing a administration plan for intraoperative and postoperative problems of cataract surgery.

Upon finishing touch of part eleven, readers will be capable to:

Identify congenital anomalies of the lens
List varieties of congenital and bought cataracts
Describe the organization of cataracts with getting older, trauma, medicines, and systemic and ocular diseases
Describe the assessment and administration of sufferers with cataract and different lens abnormalities

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Additional resources for 2014-2015 Basic and Clinical Science Course (BCSC): Section 11: Lens and Cataract

Sample text

Fetal nucleus (12-14weeks) Figure 3-1 (continued) The cells of the anterior lens vesicle remain as a monolayer of cuboidal cells, the lens epithelium. Subsequent growth of the lens is due to proliferation within the epithelium. The lens capsule develops as a basement membrane elaborated by the lens epithelium anteriorly and by lens fibers posteriorly. Secondary Lens Fibers After they proliferate, the epithelial cells near the lens equator elongate to form secondary lens fibers. The anterior aspect of each developing lens fiber extends anteriorly beneath the lens epithelium, toward the anterior pole of the lens.

EPHA2 is associated with age-related cortical cataract in mice and humans. PLoS Genet. 2009;5(7) :e l000584. Shiels A, Bennett TM, Knopf HL, et al. The EPHA2 gene is associated with cataracts linked to chromosome lp. Mo/ Vis. 2008;14:2042-2055. Ectopia Lentis et Pupillae In the autosomal recessive disorder ectopia lentis et pupillae, the lens and the pupil are displaced in opposite directions. The pupil is irregular, usually slit shaped, and displaced from the normal position. The dislocated lens may bisect the pupil or may be completely luxated from the pupillary space.

2004;86(3):407-485. Jaffe NS, Horwitz J. Evolution and molecular biology oflens proteins. In: Podos SM, Yanoff M, eds. Textbook of Ophthalmology, Vol 3: Lens and Cataract. New York: Gower Medical Publishing; 1992. Lens Physiology Throughout life, lens epithelial cells at the equator divide and develop into lens fibers, resulting in continual growth of the lens (see Chapter 1, Figs 1-2 and 1-4). The lens cells with the highest metabolic rate are found in the epithelium and the outer cortex. These superficial cells utilize oxygen and glucose for the active transport of electrolytes, carbohydrates, and amino acids into the lens.

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2014-2015 Basic and Clinical Science Course (BCSC): Section by American Academy of Ophthalmology, James C. Bobrow MD
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