Purpose To evaluate the results of pars plana vitrectomy (PPV) without adjuvant buckling procedures for the primary rhegmatogenous retinal detachment (RRD) with PVR grades A and B in high-myopic eyes. Methods A retrospective review included 291 eyes treated for primary RRD from 2008 to 2016. The single surgery success rate (SSSR), the total number of surgeries, outcomes and complications were analysed between group of 67 eyes with high axial myopia (group A) and group of 224 eyes without high myopia (group B). Results The mean follow-up was 30.6 ± 22.8 months. The SSSR in group A was 82.1% and in group B was 86.2% (p [ 0.05). The final reattachment rate and number of required surgeries were in group A 96.3% (3.1 surgeries) and in group B 96.0% (2.8 surgeries). The initial BCVA improved in group A from 1.58 to 0.58 LogMAR at year 3; and in group B from 1.21 to 0.34 LogMAR. In match-pair analysis of macula-off RRD, no significant difference of the CRT between groups A and B was observed within 3 years of follow-up. Conclusion The anatomical success of primary PPV for RRD did not differ between high-myopic and nonhigh-myopic eyes in PVR grades A and B. However, functional results of high-myopic eyes are worse compared to eyes without high axial myopia.