1.Diabetic Retinopathy and Peripapillary Retinal Thickness.
Hee Yoon CHO ; Dong Hoon LEE ; Song Ee CHUNG ; Se Woong KANG
Korean Journal of Ophthalmology 2010;24(1):16-22
PURPOSE: To assess the diagnostic efficacy of macular and peripapillary retinal thickness measurements for the staging of diabetic retinopathy (DR) and the prediction of disease progression. METHODS: In this prospective study, 149 diabetic patients (149 eyes) and 50 non-diabetic control subjects were included. Baseline optical coherence tomography was employed to measure retinal thickness in the macula (horizontal, vertical, and central) and the peripapillary zone (superior, inferior, nasal, and concentric to the optic disc). Seven baseline parameters were correlated with the DR stages identified by fluorescein angiography. Baseline retinal thickness was compared between groups of patients requiring panretinal photocoagulation (PRP) within 6 months (PRP group) and patients not requiring PRP (No-PRP group). RESULTS: Macular and peripapillary retinal thicknesses in diabetic subjects were significantly greater than that in normal controls (p<0.05). All retinal thickness parameters, and particularly peripapillary circular scans, tended to increase with increasing DR severity (p<0.05). The baseline thicknesses of the peripapillary circular scans were greater in the PRP group than in the no-PRP group (p<0.05). CONCLUSIONS: Peripapillary retinal thickness may prove to be a useful criterion for DR severity and may also serve as an indicator of disease progression.
Aged
;
Diabetic Retinopathy/*diagnosis/surgery
;
Disease Progression
;
Female
;
Fluorescein Angiography
;
Humans
;
Light Coagulation
;
Male
;
Middle Aged
;
Optic Disk
;
Prospective Studies
;
Retina/*pathology/surgery
;
*Severity of Illness Index
;
*Tomography, Optical Coherence
2.Visual Prognosis of Culture-Proven Bacterial Endophthalmitis.
Journal of the Korean Ophthalmological Society 2006;47(8):1292-1297
PURPOSE: To evaluate the factors contributing to the visual outcome of patients with culture-proven bacterial endophthalmitis. METHODS: We reviewed medical records of all eyes with infectious endophthalmitis between January 1996 and June 2005. The causative bacteria were identified in 18 of 90 eyes, for which we evaluated their clinical features and factors influencing their visual prognosis. RESULTS: Bacterial endophthalmitis occurred after cataract surgery in 6 of 18 eyes, after trabeculectomy or glaucoma implant surgery in 4 eyes, after trauma in 3 eyes, after intravitreal triamcinolone injection in 1 eye, and after endogenous endophthalmitis in 4 eyes. The culture results were similar between gram positive and gram negative organisms. Final vision was 0.1 or better in 6 of the 18 eyes. Final visual acuities showed statistically significant correlation with causative organisms (p=0.018). CONCLUSIONS: For effective management of bacterial endophthalmitis and prediction of prognosis, we recommend thorough bacterial culture. Also, further investigation with a large population is needed.
Bacteria
;
Cataract
;
Endophthalmitis*
;
Glaucoma
;
Humans
;
Medical Records
;
Prognosis*
;
Trabeculectomy
;
Triamcinolone
;
Visual Acuity
3.Results of Deep Lamellar Endothelial Keratoplasty (DLEK).
Song Ee CHUNG ; Dong Hoon LEE ; Tae Young CHUNG ; Eui Sang CHUNG
Journal of the Korean Ophthalmological Society 2006;47(11):1743-1750
PURPOSE: To evaluate the clinical results of deep lamellar endothelial keratoplasty (DLEK) surgery in patients with bullous keratopathy. METHODS: Seven eyes of 7 patients diagnosed with bullous keratopathy were evaluated for pre- and postoperative visual acuity, refractive error, astigmatism, and corneal topographic results. Specular microscopy and corneal pachymetry was performed in order to evaluate the corneal endothelial cell status. Postoperative complications such as graft rejection, infection, glaucoma, and graft dislocation were also evaluated. RESULTS: Preoperative visual acuity improved from 0.006 (CF ~ 0.02) to 0.4 (0.1 ~ 0.5) at an average of 1.2+/-0.18 years of follow-up. Manifest refraction, topographic astigmatism, corneal endothelial cell density, and central corneal thickness at the final visit were 1.21+/-0.73D, 2.1+/-0.70D, 1304+/-682 cells/mm2, and 504+/-128 micrometer respectively. Two eyes (28.6%) developed graft rejection, one of which recovered after intensive steroid treatment. However, one patient (14.3%) underwent penetrating keratoplasty due to graft failure at 6 months postoperatively. Seven of 7 eyes were noted to have graft dislocation, all of which were repositioned and attached after air injection or suture. CONCLUSIONS: DLEK surgery is an effective alternative to conventional penetrating keratoplasty for bullous keratopathy patients because of fast visual recovery and low incidence of postoperative astigmatism.
Astigmatism
;
Corneal Pachymetry
;
Corneal Transplantation*
;
Dislocations
;
Endothelial Cells
;
Follow-Up Studies
;
Glaucoma
;
Graft Rejection
;
Humans
;
Incidence
;
Keratoplasty, Penetrating
;
Microscopy
;
Postoperative Complications
;
Refractive Errors
;
Sutures
;
Transplants
;
Visual Acuity
4.Estrogen Antagonist and Development of Macular Hole.
Song Ee CHUNG ; Seong Wook KIM ; Hye Won CHUNG ; Se Woong KANG
Korean Journal of Ophthalmology 2010;24(5):306-309
To describe the clinical and optical coherence tomography (OCT) features of a macular hole (MH) or its precursor lesion in patients treated with systemic antiestrogen agents. We reviewed the medical history of the patient, ophthalmic examination, and both fundus and OCT findings. Three female patients receiving antiestrogen therapy sought treatment for visual disturbance. All of the patients showed foveal cystic changes with outer retinal defect upon OCT. Visual improvement was achieved through surgery for the treatment of MH in two patients. Antiestrogen therapy may result in MH or its precursor lesion, in addition to perifoveal refractile deposits. OCT examination would be helpful for early detection in such cases.
Adult
;
Breast Neoplasms/drug therapy/surgery
;
Estrogen Antagonists/*adverse effects
;
Female
;
Humans
;
Middle Aged
;
Retinal Perforations/*chemically induced/diagnosis/surgery
;
Tamoxifen/*adverse effects
;
Vitrectomy
5.Complication of Amebic Liver Abscess: Biliary Fistula.
Han Wook CHUNG ; Song Ee PARK ; Hyun Jeong PARK ; Jae Cheol KWON ; Hyung Joon KIM
Kosin Medical Journal 2015;30(2):175-180
In amebic liver abscess, communication between liver abscess and intrahepatic bile ducts is an uncommon cause of bile leak. This condition can be treated surgically or endoscopically. However, these treatment modalities are related with high morbidity and mortality. A 49-year-old man was diagnosed with amebic liver abscess. Percutaneous drainage was performed due to poor medical response and for the purpose of preventing abscess rupture. Liver abscess-biliary communication was found at follow-up imaging study. He was treated successfully with medical therapy and supportive care without further interventions.
Abscess
;
Bile
;
Bile Ducts, Intrahepatic
;
Biliary Fistula*
;
Drainage
;
Follow-Up Studies
;
Humans
;
Liver
;
Liver Abscess
;
Liver Abscess, Amebic*
;
Middle Aged
;
Mortality
;
Rupture
6.Imaging Findings of Liposuction with an Emphasis on Postsurgical Complications.
Je Sung YOU ; Yong Eun CHUNG ; Song Ee BAEK ; Sung Phil CHUNG ; Myeong Jin KIM
Korean Journal of Radiology 2015;16(6):1197-1206
Liposuction is one of the most frequently performed cosmetic surgeries worldwide for reshaping the body contour. Although liposuction is minimally invasive and relatively safe, it is a surgical procedure, and it carries the risk of major and minor complications. These complications vary from postoperative nausea to life-threatening events. Common complications include infection, abdominal wall injury, bowel herniation, bleeding, haematoma, seroma, and lymphoedema. Life-threatening complications such as necrotizing fasciitis, deep vein thrombosis, and pulmonary embolism have also been reported. In this paper, we provide a brief introduction to liposuction with the related anatomy and present computed tomography and ultrasonography findings of a wide spectrum of postoperative complications associated with liposuction.
Abdomen/ultrasonography
;
Fasciitis, Necrotizing/etiology
;
Hematoma/etiology
;
Humans
;
Lipectomy/*adverse effects
;
Postoperative Complications/*etiology
;
Pulmonary Embolism/etiology
;
Tomography, X-Ray Computed
;
Venous Thrombosis/etiology
7.Management of the adverse effects of cancer immunotherapy with a focus on the respiratory and nervous systems
Journal of the Korean Medical Association 2023;66(2):116-122
The incidence of adverse toxic reactions to immunotherapy using immune checkpoint inhibitors is 2-10% in the respiratory system and 3.9% to 12% in the neurologic system. The severity of adverse effects increases when combined immunotherapeutic agents are administered.Current Concepts: In cases of high-grade toxicity, it is important to discontinue immunotherapy immediately. In cases of grade 3 to 4 toxicity, immunosuppressive corticosteroid therapy is the first-line treatment. Short-term steroid treatment does not affect anti-tumor efficacy. It is thus necessary to use steroids for an appropriate period then carefully taper the steroid dose to prevent recurrence. If no improvement is achieved within 48-72 hours after the administration of steroids, it is essential to initiate multidisciplinary treatment involving related departments and add immunosuppressive drugs. If the patient is administrated immunotherapy again, it may be necessary to permanently discontinue the immunotherapy depending on the toxicity grade that first occurred.Discussion and Conclusion: The primary goals for effective management of immunotherapy-related adverse events are early recognition of symptoms and immediate treatment.
8.Comparison of the Normal Visual Fields Between the Goldmann and Humphrey Kinetic Perimetries.
Song Ee CHUNG ; Sung Jin LEE ; Kyung Seek CHOI ; Song Hee PARK
Journal of the Korean Ophthalmological Society 2009;50(6):904-910
PURPOSE: To show Humphrey automated kinetic perimetry can be substituted for Goldmann perimetry, which has been used in the field of disability evaluation field, the differences of normal visual fields between two perimetries were evaluated. METHODS: Goldmann and Humphrey automated kinetic perimetries were performed simultaneously in 70 eyes of 35 normal healthy Koreans who had no specific ophthalmologic disease at 12 meridians; 0degrees, 30degrees, 60degrees, 90degrees, 120degrees, 150degrees, 180degrees, 210degrees, 240degrees, 270degrees, 300degrees, and 330degrees. The mean values of field in each case were compared. In addition, the corrected values were obtained through the calculation of the difference in the two maximal fields. RESULTS: The visual fields of Humphrey and Goldmann kinetic perimetries showed a similar oval shape, but the fields of Goldmann were statistically significantly wider than the Humphrey fields. As the values of Humphrey were compared with the original data of Goldmann, all values of the visual field were narrow. CONCLUSIONS: The visual fields by Humphrey automated kinetic perimetry were smaller than those by Goldmann perimetry. Therefore, if Humphrey kinetic perimetry is used for the evaluation of visual disability, the visual field should be evaluated after the correction.
Disability Evaluation
;
Eye
;
Visual Field Tests
;
Visual Fields
9.A Developmental Mechanism of Spontaneous Reattachment in Rhegmatogenous Retinal Detachment.
Song Ee CHUNG ; Se Woong KANG ; Chan Hui YI
Korean Journal of Ophthalmology 2012;26(2):135-138
This retrospective observational case series on eyes from three patients was done to elucidate the developmental mechanism of spontaneous reattachment of rhegmatogenous retinal detachment (SRRRD). The study eyes of each patients showed evidence of retinal break and diffuse retinal pigmentary change. Ultrasound biomicroscopic examination revealed vitreous fibers attached to the area around the retinal break. Posterior vitreous attachment was confirmed in each eye. A thin fibrovascular membrane incompletely sealing the retinal break was noted in one case. We suggest that the vitreous attachment around the retinal break and the sealing of the break with adjacent vitreous fibers seem to be involved in the developmental mechanism of SRRRD.
Adult
;
Atrophy
;
Disease Progression
;
Female
;
Humans
;
Male
;
Middle Aged
;
Remission, Spontaneous
;
Retina/*abnormalities/pathology/*physiopathology
;
Retinal Detachment/*etiology/pathology/*physiopathology
;
Retinal Pigment Epithelium/abnormalities/pathology/physiopathology
;
Retrospective Studies
;
Vitreous Body/abnormalities/pathology/physiopathology
;
Young Adult
10.The Short-term Effect of Triple Therapy for Diabetic Macular Edema With Vitreomacular Traction.
Jong Hun BAK ; Song Ee CHUNG ; Se Woong KANG
Journal of the Korean Ophthalmological Society 2008;49(12):1941-1947
PURPOSE: To evaluate the short-term effect and safety of a triple therapy on diabetic macular edema (DME) with vitreomacular traction. METHODS: Twenty four eyes from 24 subjects, diagnosed with DME with vitreomacular traction, were subjected to vitrectomy. Intravitreal triamcinolone acetonide injection and macular laser photocoagulation were conducted sequentially at one and 14 days after vitrectomy. Best corrected visual acuity (BCVA) and central macular thickness (CMT) were recorded before surgery and at three and six months after triple therapy. RESULTS: The mean (+/-standard deviation [SD]) logarithm of the minimum angle of resolution BCVAs before, three, and six months after the triple therapy were 0.77+/-0.38, 0.48+/-0.27, and 0.47+/-0.36, respectively. The mean (+/-SD) CMTs before, three, and six months after the triple therapy were 407.9+/-127.1 micrometer, 272.4+/-104.6 micrometer, and 263.5+/-131.2 micrometer, respectively. The changes in BCVA at three and six months from treatment were statistically significant. Macular thickness decreased significantly at 3 and 6 months postoperatively. CONCLUSIONS: Triple therapy is a good therapeutic option for diabetic macular edema with vitreomacular traction to improve visual acuity and macular thickness.
Eye
;
Light Coagulation
;
Macular Edema
;
Traction
;
Triamcinolone Acetonide
;
Visual Acuity
;
Vitrectomy