PPCD4 is characterized by an irregular posterior corneal surface with occasional opacities of variable size and shape. There is inter- and intrafamilial as well as intraindividual variability. Symptoms can include blurred vision due to corneal edema, reduced visual acuity, secondary glaucoma, and corectopia; some affected individuals are asymptomatic. Rare patients have undergone enucleation for painful eye (Liskova et al., 2018).
For a discussion of genetic heterogeneity of PPCD, see 122000. [from
OMIM]