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Yusuke Ichiyama, Hajime Kawamura, Masato Fujikawa, Osamu Sawada, Yoshitsugu Saishin, Masahito Ohji; Photoreceptor outer segment length and outer foveal thickness as predictive factors associated with visual outcome after vitrectomy for vitreomacular traction syndrome. Invest. Ophthalmol. Vis. Sci. 2014;55(13):297.
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© ARVO (1962-2015); The Authors (2016-present)
To investigate the predictive factors for postoperative BCVA in patients with vitreomacular traction (VMT) syndrome treated with vitrectomy.
Twelve eyes of 12 patients that underwent vitrectomy for VMT syndrome and followed for at least 12 months were retrospectively reviewed. A standard three-port 23 or 25 gauge pars plana vitrectomy with the internal limiting membrane (ILM) peeling was performed. Phacoemulsification and aspiration with intraocular lens implantation was performed simultaneously in phakic eyes. We assessed the associations among postoperative best-corrected visual acuity (BCVA) at 12 months after the surgery and preoperative parameters including BCVA, age, central foveal thickness (CFT : the distance between ILM and retinal pigment epithelium [RPE] at the foveal center), outer foveal thickness (OFT : the distance between external limiting membrane [ELM] and RPE at the foveal center), photoreceptor outer segment length (PROS length : the distance between IS/OS junction and RPE at the foveal center).
Seven eyes (58%) were phakic and 5 (42%) were pseudophakic preoperatively, with males accounting for 3 cases. The mean patient age at the vitrectomy was 68.6 ± 9.8 years. The mean logarithm of minimum angle of resolution (logMAR) BCVA was 0.42 ± 0.34 at baseline and statistically significantly improved to 0.19 ± 0.24 at 12 months after surgery (P=0.023). Preoperative BCVA, OFT and PROS length were significantly correlated with BCVA at 12 months after the surgery (BCVA: P = 0.032, r = 0.619, OFT: P = 0.001, r = -0.840, PROS: P = 0.002, r = -0.790, respectively). Age, axial length and CFT were not significantly correlated with VA after the surgery (Age: P = 0.331, r = -0.307, axial length: P = 0.091, r = 0.533, CFT: P = 0.545, r = -0.194).
Preoperative BCVA, OFT and PROS length could be good predictive factors of postoperative BCVA in patients with VMT syndrome.
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