The surgical treatment for posterior capsule opacification on pseudophakic eyes

Objective To study the clinical value of pars plana capsulotomy and vitrectomy with infusion through the scleral tunnel incision to remove the posterior capsule opacification (PCO) on pseudophakic eyes. Methods This technique was perfomed in 32 casas (34 eyes) of complicated PCO with pseudophakic eyes,which was almost impossible to remove through the Nd:YAG capsulotomy. Pre-and post-operative visual acuity, intraocular pressure, complications during and after the operation were observed.The mean follow up time was 18 months. Results The central opaque posterior capsule and anterior vitreous were successfully removed in all patients without complication. A round hole with 3.5-4 mm diameter was obtained at the central part of the posterior capsule. In all 34 eyes, a clear visual axis was obtained. The visual acuity in all patients was improved and achieved the best level in their history. Visual acuity was 0.66 + 0.36,The best corrected postoperative visual acuity was 0.5 or better in 26 eyes (76.5%).1.0 or better in 10eyes (29.4%). There were no complications during the postoperative follow-up period, such as dislocation or damage of the IOL,corneal,vitreous prolapse, retina detachment and reocclusion of the visual axis. Conclusions Pars plana capsulotomy and vitrectomy with infusion through the scleral tunnel incision is a safe and effective procedure to remove the PCO in pseudophakic eye, especially for the cases with dense and thick opaque capsule formed after IOL implantation, which cannot be removed through the Nd:YAG capsulotomy.