Posterior polar cataracts are rare, and little has been published on their specific incidence. Furthermore, no standardized, subtype-specific study on this type of cataract has been conducted. The prevalence of this infrequently encountered form of cataract is very low. Posterior polar cataracts are often an inherited trait and are present in several members of the same family.
For more on the epidemiology of posterior polar cataract, read here.
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Cite this: Robert H. Graham. Fast Five Quiz: Can You Properly Address Cataracts? - Medscape - Jul 22, 2015.