1.The Long-Term Effect of Unilateral Lateral Rectus Muscle Recession for Moderate Angle Exotropia.
Ki Ju MOON ; Woong Chul CHOI ; Chan PARK
Journal of the Korean Ophthalmological Society 1998;39(8):1885-1890
In order to evaluate the long-term effect of single lateral rectus muscle recession for the moderate angle exotropia(20-3-PD), we retrospectively studied 30 cases which were recessed by 8-9mm. The average follow-up period was 35.8 month. At 6 month postoperatively, the success rate was 75% in 8mm recession group and 84% in 8.5mm group, 88% in 9mm group. At the last follow-up, the success rate was 62%, 38%, 22% respectively. The recession of single lareral rectus muscle for the moderate angle exotropia was successful during the early postoperative period. But, its success rate was gradually decreased in the long-term follow-up especially for exotropia over 25PD. So, we should consider to recess lateral rectus muscle more than 8-9mm or choose the classic surgical method such as both lateral rectus recession or recession-resection for exotropia over 25PD.
Exotropia*
;
Follow-Up Studies
;
Postoperative Period
;
Retrospective Studies
2.Subconjunctival Orbital Fat Prolapse.
Woong Chul CHOI ; Je Seung LEE
Journal of the Korean Ophthalmological Society 2000;41(7):1609-1613
Subconjuctival orbital fat prolapse is a disease, which can be diagnosed by clinical manifestations and treated with simple procedure. Intraconal fat prolapses through weakened tenon and protrudes into subconjunctival space. The mass shows convex anterior margin and places at superotemoral region. The mass shrinks when indented and enlarges by putting pressure on the globe. It is frequently seen on males over 60 years old. It usually occurs bilaterally, and does not seem to be in association with obesity. Computer tomography and magnetic resonance image of the orbit show the mass contiguous to intraconal fat. Partial excision with careful hemostasis is sufficient for treatment.
Hemostasis
;
Humans
;
Male
;
Middle Aged
;
Obesity
;
Orbit*
;
Prolapse*
3.Results of Endoscopic Dacryo cystorhinostomy.
Woong Chul CHOI ; Choong Ki JUNG
Journal of the Korean Ophthalmological Society 1999;40(6):1459-1463
The success rate of endoscopic dacryocystorhinostomy in epiphopa patients was evaluated. We anaylzed 57 patients, 62 cases from February 1997 to March 1998. Mean follow-up period was 7.17 months. There were 51 cases(82.3%) of female Causes of the disease were idiopathic(52 cases), trauma(3 cases) and congenital(3 cases). Primary success rate was 67.8% while total success rate was 80.6%. We used mitomycin C in 20 cases. Primary success rate in mitomycin C used group was 70.6% while total success rate was 95.0%. The success rate in mitomycin C used group was higher than that without mitomycin C. Endoscopic darcryocystorhinostomy has advantages such as less scar and short postoperarive recovery time but low success rate limits its use. However the success rate in endoscopic dacryocystorhinostomy is incresasing due to surgical improvement and instrument development.
Cicatrix
;
Dacryocystorhinostomy
;
Female
;
Follow-Up Studies
;
Humans
;
Mitomycin
4.A Case of Cyclic Exotropia.
Chyul Woong RHEE ; Dong Kwang CHOI ; Hee Chul KIM
Journal of the Korean Ophthalmological Society 1978;19(2):233-235
A cyclic squint is a rare, interested in ocular motility disturbance. It appears regular and alternate-day rhythmic cycle, most frequently at 48 hours The cyclic squint was reviewed approximately 50 Cases in literatures since it was first reported by Burian in 1958. These all was presented with cyclic ESOTROPIA but authors have not found a description of cyclic EXOTROPIA as described here. The biological clock mechanism which induces a cyclic squint is unknown. This case had recession of the bi-lateral recti and obtained constant orthophoria.
Biological Clocks
;
Esotropia
;
Exotropia*
;
Strabismus
5.Usefulness of 99m Tc-MDP Bone Scintigraphy for Assessing Vascular Ingrowth on Hydrox yapatite Ocular Implant.
Jung Hoon KIM ; Woong Chul CHOI ; Hyung Sun SHON
Journal of the Korean Ophthalmological Society 2001;42(2):313-320
This study was to evaluate the clinical usefulness of 99m Tc-MDP bone scintigraphy for assessing vascular ingrowth into the ocular implants after enucleation and evisceration. Twenty four patients(M:F=7:17, mean age:36), with a coralline hydroxyapatite after uncomplicated enucleation or evisceration surgery were studied. Uptake ratio was also calculated by measuring the implants activity(H)and contralateral orbit activity(N). Grading score and uptake ratio were compared with clinical outcome of vascularization. Additionally, we also analyzed the vascularization status as time lapse between primary surgery and scintigraphic study and surgical methods. The degree of grade and uptake ratio were inversely correlated with vascular ingrowth. Higher than grade 2 or greater than 1.56 in H/N ratio seemed to be an indicator for better prognosis. 99m Tc-MDP bone scintigraphy can be a useful method to evaluate the vascularized status of implants. Adequate time for 99m Tc-MDP bone scintigraphy after enucleation and evisceration was 11~20 weeks.
Durapatite
;
Orbit
;
Prognosis
;
Radionuclide Imaging*
6.Outcome of Hemodialysis Treatment on 200 Cases of Chronic Renal Failure.
Jai Ik LEE ; Byung Chun CHUNG ; Woong Hwan CHOI ; Chong Myung KANG ; Han Chul PARK
Korean Circulation Journal 1982;12(1):169-177
Regular hemodialysis has been established as a way of treatment for end stage renal failure. In adults, hemodialysis 5 hours each time, three times weekly with one square meter hemodialyzer is now widely accepted as a standard, and there are many reports on long term follow up studies. Quite a large difference are present, however, in our community mainly originated from patient's poor compliance in frequent dialysis with short interdialysis interval. The author analyzed 200 cases of chronic renal failure who have received hemodialysis treatments during the 5 year period from July 1976 to June 1981 at the hemodialysis unit of the hanyang University Hospital and the following results are obtained; 1. Actual one year survival rate was much higher in thrice(87.1%) than one(35.1%) or twice(54.1%) weekly dialysis. 2. Long term(more than 6 months) complications were also more frequent in once(85.7%) or twice(70.2%) weekly treatments than in thrice(22.2%). The predominant complications were congestive heart failure, pericarditis, and infections. 3. Those who recieved three times weekly dialysis had better rehabilitation grades than the patients groups of twice or once weekly treatment. 4. Of peridialysis distressful symptoms, nausea, vomiting dizziness were less frequent in the group three times a week dialysis. In contrast, headache, hypotension, muscle cramps, and weakness were not significantly related with frequency of hemodialysis. 5. Those who voided a large amount of urine output had better survival and less frequent requirement of blood transfusions. 6. Main causes of death were due to patient poor compliance, hyperkalemia and cerebrovascular acidents. 7. Economic problems were the major cause of dialysis interruption.
Adult
;
Blood Transfusion
;
Cause of Death
;
Compliance
;
Dialysis
;
Dizziness
;
Follow-Up Studies
;
Headache
;
Heart Failure
;
Humans
;
Hyperkalemia
;
Hypotension
;
Kidney Failure, Chronic*
;
Kidneys, Artificial
;
Muscle Cramp
;
Nausea
;
Pericarditis
;
Rehabilitation
;
Renal Dialysis*
;
Renal Insufficiency
;
Survival Rate
;
Vomiting
7.Antimycotic susceptibility testing of trichophyton rubrum by microculture method.
Moo Woong LEE ; Jong Chul KIM ; Jong Soo CHOI ; Ki Hong KIM
Yeungnam University Journal of Medicine 1992;9(2):396-406
Various susceptibility tests have been used to determine minimal inhibition concentration (MIC) of dermatophytes. They have limitations to apply practically because they need long time to determine MiC. Authors examined MIC of T. rubrum to ketoconazole and itraconazole using 96- well microplate and 24-well macroplate by method of Granade and Artis and tried to check the possibility of this method on clinical application. Nine strains of T. rubrum from patients with dermatophytosis were used. Evaluations of the factors affecting MIC were also tried. The results as follows. 1. Effect of inoculation density on determination time and MIC: Determination of MIC were possible in 4th days after inoculation at higher inoculation density (aborbance 2.0, 1.0) compared to 6th days at lower inoculation density (absorbance 0.5, 0.25). 2. Effect of incubation temperature on MIC: When incubating at 37℃, MIC were below 0.006-0.04µg/ml to ketoconazole and below 0.006-0.04µg/ml to itraconazole while at 25℃ 0.08-5.68µ8/ml to ketoconazole and 0.006-0.71µg/ml to itraconazole. Significant reduction of MIC was observed at 37℃ compared to 25℃. 3. Effect of container size on determination time and MIC: When incubating in 96–well microplate and 24-well macroplate, determination of MIC was possible in 4th to 6th days after inoculation in broth-containig 96-well microplate compared to 8th to 12th days in broth-containing 24-well macroplate. But no difference in MIC was observed between different container size. 4. Effect of media on MIC: When using broth as media, MIC were below 0.006-5.68µg/ml to ketoconazole, below 0.006-0.36µg/ml to itraconazole in broth-containg 24-well macroplate. When using agar as media, MIC were below 0.006-5.68 µg/ml to ketoconazole, below 0.006-5.68 µg/ ml to itraconazole in agar-containing 24-well macroplate. 5. These findings confirm that determination of MIC of dermatophtes by method of Granade and Artis is fast and simple technique for antifungal susceptibility test.
Agar
;
Arthrodermataceae
;
Humans
;
Itraconazole
;
Ketoconazole
;
Methods*
;
Tinea
;
Trichophyton*
8.A Case of Kearns-Sayre Syudrome.
Hee Chang YANG ; Woong Chul CHOI
Journal of the Korean Ophthalmological Society 1999;40(3):864-868
Kearns-Sayer syndrome, a rare mitochondrial disorder, is composed of chronic progressive external ophthalmoplegia, atypical retinal pigmentation and complete heart block, and also causes numerous neurologic or endocrinologic symptoms. On muscle biopsy, a "ragged red fiber" was seen with Gomori trichrome stain, On electron microscopy, aggregations of abnormal mitochondria were demonstrated, confirming the diagnosis of mitochondrial myopathy. We report a case of Kearns-Sayer syndrome we have experienced.
Biopsy
;
Diagnosis
;
Heart Block
;
Microscopy, Electron
;
Mitochondria
;
Mitochondrial Diseases
;
Mitochondrial Myopathies
;
Ophthalmoplegia, Chronic Progressive External
;
Pigmentation
;
Retinaldehyde
9.Modified reduction genitoplasty
Chang Soo KIM ; In Woong UM ; Heuy Yong ANN ; Sang Chul CHUNG ; Hong Sik CHOI
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 1991;13(2):199-202
No abstract available.
10.Buccal fat pad transfer as a pedicled flap for facial augmentation
Sang Chul CHUNG ; Heui Yong ANN ; Hong Sik CHOI ; In Woong UM ; Chang Soo KIM
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 1991;13(2):153-159
No abstract available.
Adipose Tissue
;
Surgical Flaps