Laser Photocoagulation for Macular Edema in Branch Retinal Vein Occlusion

We observed 44 eyes of 43 patients who were diagnosed as macular edema in branch retinal vein occlusion(BRVO) by fluorescein angiogram, which had been followed up over 6 months after argon-green laser photocoagulation. In our cases, sixth decade of age was most commonly affected and there were no significant difference in sexual prevalence and laterality. Eighty six percent was 0.5 or less in initial visual acuity and 59.1% was 0.5 or more in final visual acuity. Increased visual acuity of 2 lines or more was 61.4% and decrease was only 9.1%. After laser treatment, visual improvements of each comparing group were as follow: 60.7% in superotemporal and 62.5% in inferotemporal, 56.5% in hypertensive patients and 66.7% in normotensive patients, 61.5% in below 6 months from onset of symptom until entry into laser photocoagulation and 61.1% in over 7 months, and there were no significant statistical difference.

Treatment of Complicated Retinal Detachments by Intraoperative Use of Perfluorphenantenanthrene Liquid

We have applied the intraoperative use of Perfluorophenanthrene (C14F24) liquid in 19 eyes of complicated retinal detachment surgery in 19 patients since November 1990 to October 1991. The vast majority of case of retinal detachment was trauma (9 eyes) and uveitis including pars planitis (6 eyes) remainders were juvenile retinoschisis, cataract surgery, myopIa, diabetes one eye each. The grade-D of proliferative change was found in 9 eyes (D1 3 eyes, D2 3 eyes, D3 3 eyes) and 8 eyes belong to over grade-C2 (C2 4 eyes, C3 4 eyes). Multiple anterior retinal tears were found in two. Giant retinal tear was noticed in 5 eyes and the other one was made on therapeutic purpose. Intraoperative reattachment was obtained in all eyes. The follow-up periods were 6 or more (mean 9.1) months. At last follow-up, the retina was attached in 12 eyes (63%), partially attached in 2 (10%) and redetached in 5 (26%). Visual acuity was improved or same in 12 eyes (63%), became worse in 7(37%). Visual acuity of 0.02 or better was obtained in 12(63%) eyes and 3(16%) saw 0.1 or better. Perfluorophenanthrene liquid was thought as non-toxic, heavy biomaterial and effective to treat the complicated retinal detachments.

Two Cases of Ischemic Retinopathy due to Intravitreal Gentamicin Toxicity after Vitrectomy

Retinal toxicity secondary to intravitreal injection of gentamicin for the purpose of prophylaxis or treatment of endophthalmitis was reported infrequently and it was thought to be caused by an error in the intravitreal injection technique or by faulty dilution of gentamicin. After vitrecotomy, we experienced two cases of ischemic retinopathy secondary to intravitreal injection of gentamicin for prevention of endopthalmitist.