Pars Plana Vitrectomy in Pars Planitis and Posterior Uveitis

This study was undertaken to evaluate the effectiveness of pars plana vitrectomy in pars planitis and posterior uveitis. We performed pars plana vitrectomies in consecutive series of 31 eyes with pars planitis and posterior uveitis that were complicated with vitreous opacities, epiretinal membrane formation, tractional retinal detachment and posterior subcapsular cataract. Postoperatively improvement of visual acuity, 2 lines or more in Snellen chart, was noted in 19 eyes(61.2%) with a mean follow-up of 21 months. The inflammatory cells were not visible in anterior chamber or anterior vitreous after 1 month thereafter. In three patients, however, the postoperative visual acuities were worSe due to preoperatively combined cystoid macular edema, macular pucker and tractional retinal detachment. We believe early pars plana vitrectomy before the formation of epiretinal membrane is an important factor in minimizing and postoperative complications.

Pars Plana Vitrectomy in Pars Planitis and Posterior Uveitis

This study was undertaken to evaluate the effectiveness of pars plana vitrectomy in pars planitis and posterior uveitis. We performed pars plana vitrectomies in consecutive series of 31 eyes with pars planitis and posterior uveitis that were complicated with vitreous opacities, epiretinal membrane formation, tractional retinal detachment and posterior subcapsuIar cataract. Postoperatively improvement of visual acuity, 2 lines or more in Snellen chart, was noted in 19 eyes (61.2%) with a mean follow-up of 21 months. The inflammatory cells were not visible in anterior chamber or anterior vitreous after 1 month thereafter. In three patients, however, the postoperative visual acuities were worse due to preoperatively combined cystoid macular edema, macular pucker and tractional retinal detachment. We believe early pars plana vitrectomy before the formation of epiretinal membrane is an important factor in minimizing and postoperative complications.

The Effects of Cryotherapy in Pars Planitis

Pars planitis is characterized by an inferior vitreous opacification with vitreous exudation and organization. Although it has been called a benign process. it may lead to recurrent exacerba tions and remissions with many ocular complications. The response to corticosteroid treatment is seemingly good. However, many ocular complications such as posterior subcapsular cataract. vitreous opacity and cystoid macular edema were developed. This study was undertaken to evaluate the effectiveness of cryopexy on severe cases not responding to corticosteroid therapy. We reviewed a consecutive series of 9 eyes in the nine patients with pars planitis that had been treated with cryopexy and followed for a meridian of 23 months. In majority of cases, the inflammatory cells were not visible in anterior chamber and no increase of inflammatory cells in the anterior viterous after 2 months except 2 cases who were recurred on the other sides of the same eye. The improvement of visual acuity was rather good without significant side effects.

A Reiew of Intraocular Foreignbodies

Sixty patients with intraocular foreign body(IOFB) between March 1983 and May 1990 were clinically analyzed. The results were as follows: 1. The incidence was more common in the young adult male, and most of the intraocular foreign bodies occurred while hammering at work. 2. The prevalent location for IOFB was at the posterior segment but, IOFB which were located at the anterior segment were more common than in other reports and were mostly magnetic in nature. 3. Smaller the size of IOFB, the milder the combined complications and the more anteriorly located, the better was prognosis for final visual acutiy. 4. Time interval between injury and operation did not infulence the prognosis of final visual acuity. 5. A visual acuity of better than 0.1 improved fwm 27cases(45%) to 32cases(53.3%) with removal of the IOFB.