Purpose: We presented cases of peripapillary chorioretinal atrophy (PPA) -related hemorrhage (PPAH) in high myopia and examined the characteristics of PPAH.
Case: The sample included 14 eyes with high myopia in 14 cases (age: 66.1±10.0 years, eye axial length: 30.86±2.74 mm) presenting hemorrhage within or near the site of PPA in which concurrent glaucoma was difficult to determine. The hemorrhage shape was circular in 9 hemorrhages, elliptical in 4 hemorrhages, and rod-shaped in 3 hemorrhages (2 cases with hemorrhages at 2 sites). The positional relationship with the PPA was within the PPA site in 11 hemorrhages and at the PPA site border in 5 hemorrhages. The site of hemorrhage was at 4 o'clock in 1 hemorrhage, at 7 o'clock in 1 hemorrhage, at 8 o'clock in 2 hemorrhages, at 9 o'clock in 8 hemorrhages, and at 10 o'clock in 4 hemorrhages, with all except 1 hemorrhage on the temporal side, and more than half of the hemorrhages at the 9 o'clock position.
Conclusions: PPAHs in high myopia are hemorrhages within the PPA site or hemorrhages that appear at the boundary of the PPA site far from the disc rim. PPAH may occur by a mechanism different from that of glaucomatous disc hemorrhage.
Nippon Ganka Gakkai Zasshi (J Jpn Ophthalmol Soc) 125: 954-960,2021.