Page 56 - 21st Century Perspective - Glaucoma Supplement
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Figure 29. A, Iris pigmented debris on the corneal endothelium. B, Iris retroillumination defects. C, Heavily pigmented trabecular
tissues from all the iris pigmented epithelial debris accumulating there.
Pigmentary glaucoma occurs when there is consistently elevated IOP with resultant glaucomatous
optic atrophy.
Pigmentary glaucoma
The conversion to pigmentary glaucoma occurs in 30% to 50% of patients with pigment dispersion
syndrome. The typical patient with pigmentary glaucoma is young, myopic and male. Pigmentary
glaucoma usually occurs after several years of pigment dispersion, and it is a bilateral asymmetric
disorder. These patients will have radially shaped iris transillumination defects, best seen when the
room is darkened, the slit lamp is on low power setting and a small beam of light is shown through
the nondilated pupil. This floods the eye with light, thus retroilluminating the iris, thereby revealing
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