Purpose:
To assess the role of Optical Coherence Tomography (OCT) measurements as prognostic factors in myopic macular hole (MH) surgery.
Methods:
In a retrospective cohort study, we evaluated 42 eyes of 42 consecutive patients who underwent standard three-port pars plana vitrectomy for myopic MH. The exclusion criteria were the presence of posterior retinal schisis, choroidal neovascularization, or macular detachment. Spearman rank correlation coefficient was used to correlate postoperative best-corrected visual acuity (BCVA, logMAR) with the preoperative OCT measurements Hole Form Factor (HFF), Macular Hole Index (MHI), MH base diameter, MH minimum diameter and MH height.
Results:
Table 1 summarizes the demographic and ophthalmic data of the study participants. Anatomical success rate was 90.5% (38/42). After one surgical procedure it was 83.3% (35/42), and among these patients HFF ranged from 0.56 to 1.11. Three patients required a second surgical approach to achieve MH closure (0.69 ≤ HFF ≤ 0.94). In 11 of 12 patients with HFF > 0.9 the MH was closed following one operation. In eyes without anatomical closure (4/42) HFF ranged from 0.54 to 0.63. A significant positive correlation between MH minimum diameter and postoperative BCVA (logMAR) was found (r = 0.39; P = 0.01). No significant correlation was found between postoperative BCVA (logMAR) and HFF (P = 0.23), MHI (P = 0.25), MH base diameter (P = 0.28) and MH height (P = 0.67).
Conclusions:
Preoperative MH minimum diameter determination with OCT can provide a prognostic factor in myopic MH surgery.
Keywords: vitreoretinal surgery • macular holes • imaging methods (CT, FA, ICG, MRI, OCT, RTA, SLO, ultrasound)