_:vb50938879 . _:vb50938879 . _:vb50938879 . _:vb50938879 "A corneal dystrophy that is characterised by changes in Descemet's membrane and endothelial layer."^^ . _:vb50938879 "url:https://en.wikipedia.org/wiki/Posterior_polymorphous_corneal_dystrophy"^^ . _:vb50938879 .