1.Angiogenesis of Retina in Diabetic Retinopathy.
Journal of Korean Society of Endocrinology 2001;16(3):339-351
No abstract available.
Diabetic Retinopathy*
;
Retina*
2.Tre atment of Gonorrhoea with Antibiotic Combinations : Kanamycin plus Ampicillin / Probenecid versus Kanamycin plus Talampicillin / Probenecid.
Chang Hoon KWAK ; Jae Hong KIM ; Joong Hwan KIM
Korean Journal of Dermatology 1985;23(6):745-751
riie snbjects werc 269 patients with uncomplicated gonococcal urethritis, who visited the Veiereal Disease Clinic of Choong-Ku Public Health Center in Fieoul from August to Decernber 1984. ()ni hundred and four of 108 patients treated with 1.anamycin, 2 gm, IM plus anipi illin,3.5 gm, p0 plus probenecid, 1 gm, PO regirrien recovered with 65(62. 5 post-gonococcal urethritis(PGlJ) and 4(3.7%) failed, One hundred and seven of III patients treated with kanamycin, 2 gm, IM plus talarnpicillin, 2 gm, PO plus probenecid, 1 gm, po regimen recovered with 71 (66. 4% ) post-goriococcal urethritis and 4(3. 6%) failed. It is suggeste,d that both these antibiotic comlbination regimens have similarly good effect in the treatment. of gonococcal urethritis.
Ampicillin*
;
Humans
;
Kanamycin*
;
Probenecid*
;
Public Health
;
Talampicillin*
;
Urethritis
3.Measurement and Analysis of Neurosensory Retinal Detachment in Central Serous Chorioretinopathy Using Heidelberg Retina Tomograph.
Jae Yong HEO ; No Hoon KWAK ; Jin Seong YOO
Journal of the Korean Ophthalmological Society 2000;41(12):2585-2590
No Abstract Available.
Central Serous Chorioretinopathy*
;
Retina*
;
Retinal Detachment*
;
Retinaldehyde*
4.A Clinical Study on Rhegmatogenous Retinal Detachment by Macular Involvement.
Yong Kwan KWAK ; No Hoon KWAK ; Warne HUH
Journal of the Korean Ophthalmological Society 1996;37(10):1688-1693
We reviewed charts of 148 patients(148 eyes) who were diagnosed with rhegmatogenous retinal detachment and operated from January 1994 to December 1995 and followed for at least 3 months postoperatively at kangnam St. Mary's hospital. We compared preoperative findings, surgical methods, ultimate anatomic success and visual outcome by macular involvement, and evaluated the causes of decrease in visual acuity after operation. Fifty four eyes were A group without involved macula and 94 eyes were B group with involved macula. There were no differences betwetm the two groups according to age, sex distribution, preoperative refractive error and location of retinal breaks. In the eyes with detached macular(B group), the duration and the extent of retinal detachment and the numbers of retinal breaks were more than those of A Group. Postoperatively 52 eyes(96.3%) with spared macular and 84 eyes(89.4%) with detached macular were anatomically reattached. Forty two eyes(77.8%) with spared macula achived visual acuity of 0.3 or better, in contrast to 2.5 eyes(26.6%) with detached macula. The most common causes of decrease in visual acuity after operation were proliferative vitreoretinopathy, macular pucker, cystoid macular edma and subretinal hemorrhage.
Hemorrhage
;
Refractive Errors
;
Retinal Detachment*
;
Retinal Perforations
;
Retinaldehyde*
;
Sex Distribution
;
Visual Acuity
;
Vitreoretinopathy, Proliferative
5.Comparison of the Effect of Cefadroxil and Kanamycin Sulfate in the Treatment of Male Gonorrhoea.
Chang Hoon KWAK ; Young Suck RO ; Young Tae KIM ; Jae Hong KIM ; Joong Hwan KIM
Korean Journal of Dermatology 1984;22(6):599-603
No abstract available.
Cefadroxil*
;
Humans
;
Kanamycin*
;
Male*
6.Ultrastructural Studies of Aortic Endothelial Injury and Regeneration.
Gium Mi JANG ; Dong Hoon KIM ; Jyung Sik KWAK ; Tae Joong SOHN
Korean Journal of Pathology 1990;24(4):337-348
Author performed this experiment to define the most important factor preventing the intimal thickening. An endothelium of abdominal aorta in the rat was denuded by two different wires having same caliver. The degree of injury was limited to the endothelial cells in one, and extended to the internal elastic lamina in another. The results showed that at 72 hours, in the case of superficial injury, the entire injury site was covered by new regenerating cells, but in the case of disruption of the internal elastic lamina, the migrating smooth muscle cell completely reached into the intima and resulted in intemal thickening. Similar findings persisted to 1 week later. Above results suggest the most important factor preventing the intimal thickening in endothelial injury is the depth of the injury which limited within the endothelial cells without extending into the internal elastic lamina and medial smooth muscle cells.
Rats
;
Animals
7.The effect of intravenous ritodrine hydrochloride on premature labor.
Jae Min LEE ; Yong Ho MOON ; Sun Jae HWANG ; Kyoung Hoon LEE ; Tae Ro KWAK
Korean Journal of Obstetrics and Gynecology 1993;36(7):3010-3016
No abstract available.
Female
;
Obstetric Labor, Premature*
;
Pregnancy
;
Ritodrine*
8.Hematic cyst formation after repair of blow-out fracture.
Shin Jeong KANG ; Il Hoon KWAK
Korean Journal of Ophthalmology 1996;10(1):60-62
Alloplastic implants are known to be inert for many years, though complications are infrequently reported many years after their insertion. We report the case of a patient who had undergone a blow-out fracture repair five years before the discovery of a hematic cyst. He had been free of symptoms for the first five years after his orbital floor repair but then developed pain on eyeball movement and persistent vertical diplopia, which finally led to surgical intervention. At surgery, a hematic cyst was found to have formed around the implanted silastic plate. When alloplastic material is used in orbital fracture repair, we should be alert for late complications which may occur many years after surgery.
Adult
;
Biocompatible Materials
;
*Blood
;
Bone Cysts/diagnosis/*etiology
;
Humans
;
Male
;
Orbital Diseases/diagnosis/*etiology
;
Orbital Fractures/diagnosis/*surgery
;
Postoperative Complications
;
Prostheses and Implants/*adverse effects
;
Reoperation
;
Silicone Elastomers/*adverse effects
;
Tomography, X-Ray Computed
9.Effects of 5-fluorouracil on culture of Bovine Retinal Pigment Epithelial cells.
No Hoon KWAK ; Jin Seong YOO ; Warne HUH
Journal of the Korean Ophthalmological Society 1995;36(3):466-472
Inspite of technical advances, long term retinal reattachment of proliferative vitreoretinopathy following the successful surgery is often disturbed by the occurrence of cell proliferation and traction. A variety of antimetabolite or anticancer drugs have been tried to use for testing their antiproliferative effects on proliferative vitreoretinopathy. To evaluate the antiproliferative property of 5-FU, we treated with the different concentration of 5-FU(0.5, 1, 5, 10 mg/L) on cultured bovine retinal pigment epithelial cells and performed dose inhibition studies. We also examined the 5-FU treated bovine retinal pigment epithelial cells by inverted microscope daily to evaluate the morphologic change for 5 days. The results were as follows; 1. 5-FU inhibited proliferation of bovine pigment epithelial cells in a dose dependent and a time dependent manner. 2. The drug concentration required for 50% inhibition of cell growth(ID50) was found to be 1.87 mg/L. 3. As the drug concentration increased, the cell density gradually decreased and the degenerative changes such as irregular shape of cells, cytoplasmic vaculoes and cell debris were aggravated. In 10 mg/L of 5-FU treated well, disruption of cell membrane and cell death were noted from the first day of incubation. These results show that 5-FU has a potent antiprolifertive effects in retinal pigment epithelial cell and toxic effet in high dose.
Cell Count
;
Cell Death
;
Cell Membrane
;
Cell Proliferation
;
Cytoplasm
;
Epithelial Cells*
;
Fluorouracil*
;
Retinaldehyde*
;
Traction
;
Vitreoretinopathy, Proliferative
10.Filtering Surgery in Aphakia and Pseudophakia.
Youn Seong CHO ; No Hoon KWAK ; Nam Ho BAEK
Journal of the Korean Ophthalmological Society 1993;34(2):135-140
Aphakic or pseudophakic glau-oma is known to be at high risk for failure after filtration surgery. The authors retrospectively investigated the results of trabeculectomy in 14 eyes of 14 patients with glaucoma, seven aphakic and seven pseudophakic eyes, which were followed from six months to three years with an average ot 16.5 months. A conventional trabeculectomy without using antifibrotic agents was performed in all the eyes. The site of conjunctival incision was prepared on the virgin area of the conjunctiva; 8 superonasal, 4 inferonasal and 2 inferotemporal approaches. An average postoperative intraocular pressure reduction was 13.4 mmHg. The number of medications decreased in 11 eyes. A spontaneously developed functioning bleb was found in seven eyes. In other four eyes, the filtering bleb was formed with an aid of massage or needling. The remallllllg three eyes did not show a functioning bleb. Postoperative complications included hyphema in 3 eyes, overfiltration in 2 eyes, choroidal detachment in 1 eye, corneal edema in 1 eye and endophthalmitis in 1 eye.
Aphakia*
;
Blister
;
Choroid
;
Conjunctiva
;
Corneal Edema
;
Endophthalmitis
;
Filtering Surgery*
;
Glaucoma
;
Humans
;
Hyphema
;
Intraocular Pressure
;
Massage
;
Postoperative Complications
;
Pseudophakia*
;
Retrospective Studies
;
Trabeculectomy