Posterior polar annular choroidal dystrophy: a synopsis of choroidal dystrophies impacting the central macula through a case report

Posterior polar annular choroidal dystrophy (PPACD) is an uncommon disease characterized by atrophy of the retinal pigment epithelium and choriocapillaris in an annular pattern. To date, only a limited number of cases has been reported. PPACD is a distinctive form of primary choroidal dystrophy affecting the central macula, and all forms of these dystrophies exhibit distinctive atrophy patterns. Here, we present a case of PPACD and emphasize the importance of this disease group by providing a brief summary of primary choroidal dystrophies affecting the central macula.