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Pigment Dispersion Syndrome - Transillumination Defect
In photo one, is a blue eyed patient whos color part of her eye (iris) is losing its color (pigment). While the reason for this is not exactly known, some believe it could be from the lens rubbing on the iris, the shape of the iris or something congenital.
Because the iris is losing pigment, light entering the eye is able to leak out. Here you can see how the light entering the eye (pupil) bounces back and leaks out of the areas where the tissue has lost pigment. Over time the drainage system of the eye can become blocked causing higher eye pressure and the onset of pigmentary glaucoma. Also inside the back of the cornea you can see the small iris particles sticking and making a line called Krukenberg’s Spindle! (google it :)
With pigment dispersion syndrome (PDS), Krukenberg’s Spindle, etc. normal checkups for pressure reading are required. This patient is monitored closely for the presence of glaucoma secondary to PDS. This has to be one of my best pictures :)
Photo two is a normal iris in which the light does not leak out.
*All photos taken by Dr. Tahir and property of JEA
