Long-term results of autologous plasma as adjuvant to pars plana vitrectomy in the treatment of high myopic full-thickness macular holes.

Background: To analyse the feasibility and efficacy of a novel autologous plasma rich in growth factor (PRGF) preparation as adjuvant to pars plana vitrectomy and internal limiting membrane peel in high myopic full-thickness macular hole (FTMH).
Methods: Single-centre, single-surgeon retrospective chart review of consecutive patients with high myopic FTMH who underwent surgery with a minimum follow-up of 12 months. Patients were divided in group 1 (naïve) and group 2 (persistent). Quantitative and qualitative variables were analysed, compared among groups and correlated with best corrected visual acuity (BCVA).
Results: Postoperatively, FTMH resolved in 28/31 eyes in group 1 (90%) and in 10/11 eyes in group 2 (91%), without significant differences ( p  = 0.954). None of the preoperative anatomical variables analysed showed significant association with preoperative BCVA. Intraoperatively, no significant complications were registered. Postoperatively, BCVA improved significantly in the studied population ( p  < 0.001). Preoperative factors associated with better postoperative BCVA were the presence of intraretinal cystoid spaces ( p  = 0.028) and elevated FTMH borders ( p  = 0.005). Preoperative dome-shaped macula was associated with significantly worse postoperative BCVA ( p  = 0.049).
Conclusion: The use of PRGF as adjuvant to vitrectomy showed to be reproducible, straightforward and efficient, with primary anatomical success rate comparable to other surgical approaches and lower risk of complications.