Terrien's marginal degeneration associated with posterior polymorphous dystrophy

Purpose. To document an association between Terrien's marginal degeneration and posterior polymorphous dystrophy. Methods. A 23-year-old Saudi man pre sented with decreased vision, peripheral corneal thinning with vascularizat ion and scarring, and abnormalities of the posterior stroma and Descemet's membrane. Results. Clinical examination, corneal topography, and specular m icroscopy were consistent with a diagnosis of Terrien's marginal degenerati on and posterior polymorphous dystrophy. Conclusion. We report the first ca se, to our knowledge, of the simultaneous occurrence of Terrien's marginal degeneration with posterior polymorphous dystrophy.