Chapter 8: Lens
List of Figures
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Figure 8-1: Age-related cataract. A and B: "Coronary" type cortical cataract (frontal and cross-sectional views): club-shaped peripheral opacities with clear central lens; slowly progressive. C: "Cuneiform" type cortical cataract: peripheral spicules and central clear lens; slowly progressive. D: Nuclear sclerotic cataract: diffuse opacity principally affecting nucleus; slowly progressive. E: Posterior subcapsular cataract: plaque of granular opacity on posterior capsule; may be rapidly progressive. F: "Morgagnian" type (hypermature lens): the entire lens is opaque, and the lens nucleus has fallen inferiorly. |
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Figure 8-2: Mature age-related cataract viewed through a dilated pupil. (Courtesy of A Rosenberg.) |
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Figure 8-3: Age-related cataract. In the photo at right the scene shown at left is reproduced as if seen by a person with a moderately advanced senile cataract (opacity denser centrally). (Courtesy of E Goodner.) |
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Figure 8-4: Congenital cataract. |
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Figure 8-5: Congenital cataract, zonular type. One zone of lens involved. The cortex is relatively clear. |
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Figure 8-6: Traumatic "star-shaped" cataract in the posterior lens. This is usually due to ocular contusion and is only detectable through a well-dilated pupil. |
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Figure 8-7: Traumatic cataract with wrinkled anterior capsule. |
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Figure 8-8: Imprint of iris pigment on anterior surface of lens. |
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Figure 8-9: Punctate dot cataract. This type of cataract is sometimes seen as an ocular complication of diabetes mellitus. It may also be congenital. |
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Figure 8-10: After-cataract. |
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Figure 8-11: Dislocated lens. |
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10.1036/1535-8860.ch8