Clinical Evaluation of Subretinal Neovascular Membrane

Subretinal neovascular membrane in the macula is a major cause of central visual loss. We reviewed the clinical records, fundus photography, fluorescein angiography of the 172 eyes of 166 patients in order to disclose the causes and clinical characteristics of subretinal neovascular membrane and performed argon and krypton photocoagulation in 22 patients. The common causes of subretinal neovascular membrane are idiopathic neovascular membrane, myopic and senile macular degeneration in order(27.1, 26.5, 22.3% aa). There was no significant difference in changes of visual acuity and extent of subretinal neovascular membrane between treatment and non-treatment groups.

Clinical analysis of tumors of the eye and its adnexa

The authors reviewed 250 cases of tumors in the eye and its adnexa diagnosed histopathologirally at the Department of Ophthalmology, Seoul National University Hospital during the last 10 years (Jan. 1976 - Dec. 1985). The results were summarized as follows: 1. The sex distribution revealed 130 males (52%) and 120 females (48%). 2. The tumors of the eye and its adnexa involved the lid 73 cases (29.2%), epibulbar tissue 72 cases (28.8%), the orbit 56 cases (22.4%), and intraocula. tissue 49 cases (19.6%) in decreasing order. 3. There were 159 cases (63.6%) of benign tumors and 91 cases (36.4%) of malignant tumors. 4. The most frequent malignant tumor of the eye and its adnexa was retinoblastoma, and the most frequent benign tumor was nevus. 5. Of the intraocular malignant tumors, the incidence of retinoblastoma was impressively higher than that of malignant melanoma in Koreans. 6. Of the primary malignant lid tumors, the relative incidence of squamous cellcarcinoma and sebaceous gland carcinoma to basal cell carcinoma in Koreanswas high in comparison with that of Caucasians.

Results with Silicone Stent in Lacrimal Drainage System

We report 20 cases of silicone stents intubation in the lacrimal drainage system in 19 patients. Intubation is indicated in the following: congenital dacryostenosis, partial nasolacrimal duct obstruction, and complete nasolacrimal duct obstruction with contracted lacrimal sac. The success rate of silicone stent intubation in congenital dacryostenosis and partial nasolacrimal duct obstuction was 55.5%(5/9). All cases of silicone stents intubation combined with dacryocystorhinostomy were successful, but silicone stents were still placed in lacrimal drainage system in 5 cases. In congenital dacryostenosis and partial nasolacrimal duct obstruction, the silicone stent intubation might be advocated as a conservative alternative to dacryocystorhinostomy and in complete nasolacrimal duct obstruction with contracted lacrimal sac, the silicone stent intubation combined with dacryocystorhinstomy might prevent postoperative canalicular obstruction.

Clinical Analysis in Tumors of the Eye and its Adnexa

The authors reviewed 250 cases of the tumors in the eye and its adnexa diagnosed histopathologically at Department of Ophthalmology, Seoul National University Hospital for last 10 years (January 1976-December 1985). The results were summarized as follows; 1. The sex distribution revealed 130 males and 120 females. 2. The tumors of the eye and its adnexa involved lid 73 cases(29.2%), epibulbar tissue 72 cases(28.8%), orbit 56 cases(22.4%), and intraocular tissue 49 cases(19.6%) in order. 3. The benign tumors were 159 cases(63.6%) and the malignant tumors were 91 cases. 4. The most frequent malignant tumor in the eye and its adnexa was retinoblastoma and the most frequent benign tumor was nevus. 5. Of intraocular malignant tumors, the incidence of retinoblastoma was impressively higher than that of malignant melanoma in Korean. 6. Of primary malignant lid tumors, the relative incidence of squamous cell carcinoma and sebaceous gland carcinoma to basal cell carcinoma in Korean was high in compare with that of whites.

Fluid Gas Exchanges in Complicated Retinal Detachments

We reviewed 71 cases of recurred retinal detachment after trans pars plana vitrectomy managed with fluid gas exchange with sulfur hexafluoride gas between January 1984 and April 1986 in order to identify the anatomic and functional success rate. The causes of vitrectomy were as follows: retinal detachment with peripheral retinal breaks(29 eyes) or giant dialysis(10 eyes) complicated by proliferative vitreoretinopathy, retinal detachment with no breaks(16 eyes), traction retinal detachments(6 eyes), and others(3 eyes). The anatomic and functional success rate was affected by the grade of proliferative vitreoretinopathy. In 71 cases performed fluid gas exchange with sulfur hexafluoride gas, anatomic success rate was 38%(27/71) and functional sucess rate was 22.5%(16/71).