Analysis of the Penetrating Ocular Injuries Involving the Posterior Segment

ABSTRACT

We analyzed retrospectively 39 cases of 39 patients who had undergone surgery for penetrating ocular injury involving posterior segment to investigate the effect of pars plana vitrectomy on visual outcome and anatomical success. Patients who received surgery between January, 1990 to October, 1994 were included. The patients who underwent pars plana vitrectomy were classified to 'vitrectomy group', and those who had not undergone vitrectomy were classified to 'primary repair group'. There were no significant differences in severity of ocular injury between the two groups. The vitrectomy group had significantly better result in functional success(visual result) and the anatomical success. Success rates of the two groups were compared in the presence of poor prognostic factors, including initial visual acuity worse than hand motion, hyphema more than 50%, vitreous hemorrhage, retinal detachment, laceration longer than 7mm, located more than 6mm posterior to the limbus. Vitrectomy group showed better results in the presence of each factor.