By American Academy of Ophthalmology, Debra J. Shetlar, MD
Discusses advances within the prognosis and type of tumors because it courses the reader via a logical, tissue-specific series that levels from topography via affliction technique to basic and differential prognosis. contains many new colour pathologic and scientific pictures and diagrams. Covers wound fix; specimen dealing with, together with processing and marking; and diagnostic options. additionally incorporates a list for inquiring for ophthalmic pathologic session.
Read or Download 2007-2008 Basic and Clinical Science Course Section 4: Ophthalmic Pathology and Intraocular Tumors PDF
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Extra resources for 2007-2008 Basic and Clinical Science Course Section 4: Ophthalmic Pathology and Intraocular Tumors
On the basis of their electrophoretic mobility towards the anode, α-crystallin is fastest, β-crystallin is intermediate and γcrystallins is slowest. The molecular weight of crystallins in daltons is α-crystallin 1,000,000, β-crystallin 50000–200000 and γ-crystallin 20000. α and β-crystallins are made of subunits and aggregation or separation of these subunits determines the physiochemical characteristics of each crystallin. The protein subunits are assembled by the alignment of amino acids through ribonucleic acid (RNA) as specified by the genetic code (Fig.
Anyone doing small incision manual techniques can be assured they are performing state-of-the art surgery for their patients, with results just as good as with phakoemulsification. 1 shows the empty capsular bag after removal of the crystalline lens. 3 The anterior and posterior poles form the optical and geometrical axis of the lens. Although the normal lens is transparent and clear in vivo, it is seldom completely colorless; even in childhood a slight yellowish tint is present that tends to intensify with age.
Several of the etiological factors are constitutional and hence difficult to manipulate. Others are environmental in nature and a little easier to control whilst a significant number are behavioral in nature and fall well within the individuals’ own ability to control or modify. • This review will briefly touch on congenital and infantile cataract but will focus on etiological factors in adults (Fig. 1) and especially those implicated as risk factors in age-related cataract. Fig. 1: Mature senile cataract CONGENITAL AND INFANTILE CATARACT Congenital cataract is numerically the most important cause of remediable blindness in children, being far more common than, for example, retinoblastoma or congenital glaucoma.
2007-2008 Basic and Clinical Science Course Section 4: Ophthalmic Pathology and Intraocular Tumors by American Academy of Ophthalmology, Debra J. Shetlar, MD