The role of the lens in pigment dispersion syndrome.
In patients with pigment dispersion syndrome, changes of the iris configuration can occur with accommodation, blinking, miotics, and following a laser iridotomy. This observational case series looks at the changes following cataract surgery in 3 eyes with signs of pigment dispersion, symptomatic cataracts, and no previous laser iridotomy that were imaged with optical coherence tomography. The iris was concave posteriorly in dark and light lighting conditions, and became flat following an uncomplicated cataract operation. This may be explained by the elimination of iridolenticular contact, which contributes to the mechanism of reverse pupil block. These iris changes suggest the lens plays an important role in the mechanism of pigment dispersion.
Preston Eye Clinic, 268 Murray Road, Preston 3072, Australia. drlsliu@hotmail.com
Lance
L
Liu
D000368:Aged; D006801:Humans; D007499:Iris Diseases / Q000473:pathology; D007908:Lens, Crystalline; D008297:Male; D008875:Middle Aged; D010857:Pigment Epithelium of Eye; D012164:Retinal Diseases / Q000473:pathology*; D013577:Syndrome