1.Predicting Factor of Visual Outcome in Unilateral Idiopathic Cataract Surgery in Patients Aged 3 to 10 Years.
Jihyun PARK ; Youn Gon LEE ; Kook Young KIM ; Byoung Yeop KIM
Korean Journal of Ophthalmology 2018;32(4):273-280
PURPOSE: To report the surgical results of unilateral pediatric cataracts from uncertain causes in relatively older children and to identify factors related to better visual outcomes. METHODS: We retrospectively evaluated the medical records of 39 patients who underwent surgery between the ages of 3 and 10 years for unilateral pediatric cataracts of no known cause. All patients underwent primary intraocular lens implantation and postoperative amblyopia treatment. A postoperative final visual acuity better than 20 / 30 was considered to be a good visual outcome. RESULTS: The mean age of patients was 6.0 ± 1.8 years at the time of surgery. The mean preoperative visual acuity was 1.07 ± 0.71 logarithm of the minimum angle of resolution (range, 0.15 to 3.00), while the mean final postoperative visual acuity was 0.47 ± 0.54 logarithm of the minimum angle of resolution (range, 0.00 to 2.00). Of 39 patients, 18 (46.2%) achieved a good visual outcome. Only the preoperative visual acuity maintained a significant association with a good visual outcome according to our multivariate analysis (p = 0.040). A preoperative visual acuity of 20 / 100 or better was found to increase the chance of achieving a good visual outcome by 13.79-fold (95% confidence interval, 1.13 to 167.58). CONCLUSIONS: The visual outcome of unilateral pediatric cataract surgery for cataracts with no specific cause identified in patients after three years of age could be satisfactory, especially with a preoperative visual acuity of 20 / 100 or better.
Amblyopia
;
Cataract*
;
Child
;
Humans
;
Lens Implantation, Intraocular
;
Medical Records
;
Multivariate Analysis
;
Phacoemulsification
;
Prognosis
;
Retrospective Studies
;
Visual Acuity
2.Changes in Tear Volume after 3% Diquafosol Treatment in Patients with Dry Eye Syndrome: An Anterior Segment Spectral-domain Optical Coherence Tomography Study.
Kwan Bok LEE ; Kyung Min KOH ; Young A KWON ; Sang Wroul SONG ; Byoung Yeop KIM ; Jae Lim CHUNG
Korean Journal of Ophthalmology 2017;31(4):306-312
PURPOSE: To evaluate changes in the tear meniscus area and tear meniscus height over time in patients with dry eye syndrome, using anterior segment spectral-domain optical coherence tomography after the instillation of 3% diquafosol ophthalmic solution. METHODS: Sixty eyes from 30 patients with mild to moderate dry eye syndrome were included. Tear meniscus images acquired by anterior segment spectral-domain optical coherence tomography were analyzed using National Institutes of Health's image-analysis software (ImageJ 1.44p). Tear meniscus area and tear meniscus height were measured at baseline, 5 minutes, 10 minutes, and 30 minutes after instillation of a drop of diquafosol in one eye and normal saline in the other eye. Changes in ocular surface disease index score, tear film break-up time, corneal staining score by Oxford schema, and meibomian expressibility were also evaluated at baseline, and after 1 week and 1 month of a diquafosol daily regimen. RESULTS: Sixty eyes from 30 subjects (mean age, 29.3 years; 8 men and 22 women) were included. In eyes receiving diquafosol, tear volume was increased at 5 and 10 minutes compared with baseline. It was also higher than saline instilled eyes at 5, 10, and 30 minutes. Changes in tear volume with respect to baseline were not statistically different after the use of diquafosol for 1 month. Ocular surface disease index score, tear film break-up time, and Oxford cornea stain score were significantly improved after 1 week and 1 month of daily diquafosol instillation, but meibomian expressibility did not change. CONCLUSIONS: Topical diquafosol ophthalmic solution effectively increased tear volume for up to 30 minutes, compared to normal saline in patients with dry eye syndrome.
Academies and Institutes
;
Cornea
;
Dry Eye Syndromes*
;
Humans
;
Male
;
Ophthalmic Solutions
;
Purinergic P2Y Receptor Agonists
;
Tears*
;
Tomography, Optical Coherence*
3.A Case of Acute Angle Closure Caused by Dislocation of Accommodative Intraocular Lens.
Hyun Ji HWANG ; Young Hoon HWANG ; Jung Jin LEE ; Byoung Yeop KIM
Journal of the Korean Ophthalmological Society 2016;57(9):1493-1497
PURPOSE: To report a case of acute angle closure after cataract surgery using an accommodative intraocular lens (IOL), WIOL-CF® (GELMED, Praha, Czech). CASE SUMMARY: A 46-year-old male patient underwent phacoemulsification and implantation of WIOL-CF® into the capsular bag. Seven months after the surgery, a sudden increase in intraocular pressure (IOP) associated with angle closure was observed. Ultrabiomicroscopy revealed a dislocated WIOL-CF® that was pushing the peripheral iris anteriorly. Despite the use of IOP-lowering medication and peripheral laser iridotomy, IOP was not controlled. After the use of cycloplegics, the angle was widened and IOP decreased; however, after nine days, the WIOL-CF® was completely dislocated into the anterior chamber and so was removed. CONCLUSIONS: When performing cataract surgery using WIOL-CF®, a possibility of dislocation of IOL and subsequent angle closure should be considered.
Anterior Chamber
;
Cataract
;
Dislocations*
;
Glaucoma
;
Humans
;
Intraocular Pressure
;
Iris
;
Lenses, Intraocular*
;
Male
;
Middle Aged
;
Mydriatics
;
Phacoemulsification
4.A Case of Syphilitic Scleritis Initially Misdiagnosed as Noninfectious Nodular or Fungal Scleritis.
Sang Youn HAN ; Jung Jin LEE ; Young A KWON ; Sang Wroul SONG ; Byoung Yeop KIM ; Jae Lim CHUNG
Journal of the Korean Ophthalmological Society 2014;55(8):1233-1237
PURPOSE: To report a case of syphilitic scleritis initially misdiagnosed as noninfectious nodular or fungal scleritis. CASE SUMMARY: A 63-year-old female, who had severe headaches and ocular pain in her left eye despite treatment with topical and oral NSAIDs for the past 4 months, was transferred from a local clinic. The patient had a history of pterygium excision in the same eye 4 years prior. Upon presentation, she had a scleromalacia with calcified plaque at the nasal conjunctiva. An erythematous nodular elevated lesion was observed in the superonasal sclera. Microbiological smear and cultures were performed to exclude infectious scleritis. Under the suspicion of noninfectious nodular scleritis, the patient was prescribed topical oral steroid and oral NSAIDs. Candida parapsilosis was identified by the microbiological culture. Under the suspicion of fungal scleritis, oral fluconazole and topical amphotericin B were administered, but the lesions did not improve. On the 23rd day of treatment, we discovered the patient had a history of syphilis. The serology test was negative for RPR and FTA-ABS IgM but positive for FTA-ABS IgG. Under the suspicion of syphilitic scleritis, oral doxycycline (200 mg bid) was administered and benzathine penicillin M (2.4 million units) was injected intramuscularly 3 times at 1-week intervals. After the doxycycline and benzathine penicillin therapy, the pain and nodular erythematous lesions were completely resolved. CONCLUSIONS: As shown in this case, syphilitic scleritis should be considered when the patient is resistant to other conventional treatments and shows positive serological tests for syphilis. This is important because syphilitic scleritis is usually aggravated by steroid treatment but can be cured by proper anti-syphilitic chemotherapy.
Amphotericin B
;
Anti-Inflammatory Agents, Non-Steroidal
;
Candida
;
Conjunctiva
;
Doxycycline
;
Drug Therapy
;
Female
;
Fluconazole
;
Headache
;
Humans
;
Immunoglobulin G
;
Immunoglobulin M
;
Middle Aged
;
Penicillin G Benzathine
;
Pterygium
;
Sclera
;
Scleritis*
;
Serologic Tests
;
Syphilis
;
Treponema pallidum
5.Comparison of Anterior Segment Measurements Using Scanning-Slit Topography and Optical Low-Coherence Reflectometry (OLCR) Biometry.
Taek Kwan RHEE ; Ji Hyun PARK ; Hyo Jeong KANG ; Young A KWON ; Sang Wroul SONG ; Byoung Yeop KIM ; Jae Lim CHUNG
Journal of the Korean Ophthalmological Society 2014;55(5):656-661
PURPOSE: To compare the results of anterior segment biometry including white-to-white (WTW) between scanning-slit topography (ORBscan IIz(R), Bausch & Lomb), optical low-coherence reflectometry (OLCR) biometry (Lenstar(R), Haag-Streit), and Castroviejo calipers. METHODS: Measurements on 72 eyes of 36 patients that underwent refractive surgery were measured using ORBscan(R), Lenstar(R), and calipers and compared. Ocular biometry parameters used in this study included the WTW, central corneal thickness, anterior chamber depth (ACD), keratometry, and pupil size. RESULTS: The WTW measurements using ORBscan(R) and calipers (11.57 +/- 0.35 mm and 11.58 +/- 0.34 mm, respectively) were statistically similar. However, the measurement using Lenstar(R) (12.05 +/- 0.40 mm) was significantly greater than with the other methods (p < 0.001). Central corneal thickness and keratometry measurements using ORBscan(R) were greater than when using Lenstar(R) (p = 0.01 for both). ACD and pupil size measurement using Lenstar(R) were greater than when using ORBscan(R) (p < 0.001 for both). CONCLUSIONS: Because WTW and ACD measurements using Lenstar(R) were greater than when using ORBscan(R) and calipers, unexpected high-vaulting may be observed due to the selection of a larger-sized posterior chamber phakic intraocular lens. Therefore, the differences in measurements obtained when using these methods should be considered.
Anterior Chamber
;
Biometry*
;
Humans
;
Phakic Intraocular Lenses
;
Pupil
;
Refractive Surgical Procedures
6.Comparison of Anterior Segment Measurements Using Scanning-Slit Topography and Optical Low-Coherence Reflectometry (OLCR) Biometry.
Taek Kwan RHEE ; Ji Hyun PARK ; Hyo Jeong KANG ; Young A KWON ; Sang Wroul SONG ; Byoung Yeop KIM ; Jae Lim CHUNG
Journal of the Korean Ophthalmological Society 2014;55(5):656-661
PURPOSE: To compare the results of anterior segment biometry including white-to-white (WTW) between scanning-slit topography (ORBscan IIz(R), Bausch & Lomb), optical low-coherence reflectometry (OLCR) biometry (Lenstar(R), Haag-Streit), and Castroviejo calipers. METHODS: Measurements on 72 eyes of 36 patients that underwent refractive surgery were measured using ORBscan(R), Lenstar(R), and calipers and compared. Ocular biometry parameters used in this study included the WTW, central corneal thickness, anterior chamber depth (ACD), keratometry, and pupil size. RESULTS: The WTW measurements using ORBscan(R) and calipers (11.57 +/- 0.35 mm and 11.58 +/- 0.34 mm, respectively) were statistically similar. However, the measurement using Lenstar(R) (12.05 +/- 0.40 mm) was significantly greater than with the other methods (p < 0.001). Central corneal thickness and keratometry measurements using ORBscan(R) were greater than when using Lenstar(R) (p = 0.01 for both). ACD and pupil size measurement using Lenstar(R) were greater than when using ORBscan(R) (p < 0.001 for both). CONCLUSIONS: Because WTW and ACD measurements using Lenstar(R) were greater than when using ORBscan(R) and calipers, unexpected high-vaulting may be observed due to the selection of a larger-sized posterior chamber phakic intraocular lens. Therefore, the differences in measurements obtained when using these methods should be considered.
Anterior Chamber
;
Biometry*
;
Humans
;
Phakic Intraocular Lenses
;
Pupil
;
Refractive Surgical Procedures
7.Clinical Usefulness of a Thermal-Massaging System for Treatment of Dry Eye with Meibomian Gland Dysfunction.
Dai Woo KIM ; Young A KWON ; Sang Wroul SONG ; Byoung Yeop KIM ; Jae Lim CHUNG
Journal of the Korean Ophthalmological Society 2013;54(9):1321-1326
PURPOSE: To evaluate the clinical usefulness of KCL 990(R) for the treatment of dry eye with meibomian gland dysfunction (MGD). METHODS: Patients (n = 54 eyes, 27 subjects) diagnosed with dry eye with MGD were recruited for a prospective, one-month clinical trial. Patients received a twice-a-day 15-minute treatment using the KCL 990(R). Effectiveness parameters included patient symptom scores using the Ocular Surface Disease Index (OSDI) questionnaires, tear osmolarity measured with TearLab(R) (TearLab Corporation, San Diego, CA, USA), classical tear break-up time (TBUT), and objective TBUT value using an Optical Quality Analysis System (OQAS(R), Visiometrics, Castelldefels, Spain). Data are presented for pre-treatment (baseline) and at 1 week and 1 month post-treatment. An objective TBUT value was estimated in each eye when the optical scattering index (OSI) started to increase consistently, and data were obtained at pretreatment (baseline) and at 1 month post-treatment. RESULTS: The symptom scores on OSDI questionnaires, tear osmolarity, and tear break-up time improved significantly from baseline to one week (p < 0.05). This improvement was maintained with no significant regression at 1 month (p < 0.05). The objective TBUT value decreased significantly at 1 month (p < 0.05). CONCLUSIONS: KCL 990(R) contributed to improve not only signs and symptoms of dry eye with MGD, but also the function of the tear film and ocular surface.
Dry Eye Syndromes
;
Eye
;
Humans
;
Meibomian Glands
;
Osmolar Concentration
;
Prospective Studies
;
Surveys and Questionnaires
;
Tears
8.Comparison of Colvardpupillometer, ORBScan II and Sirius in Determining Pupil Size for Refractive Surgery.
Ji Sun BAEK ; Ji Hyun PARK ; Eun Seok YOO ; Young A KWON ; Sang Wroul SONG ; Byoung Yeop KIM ; Jae Lim CHUNG
Journal of the Korean Ophthalmological Society 2013;54(8):1175-1179
PURPOSE: To compare pupil size measured by Colvard(R)pupillometer, ORBScan II(R), Sirius(R) and analyze correlation between pupil size and night vision disturbance after refractive surgery according to measuring methods. METHODS: Two hundred eyes of one hundred patients who underwent refractive surgery were retrospectively evaluated. Pupil size was measured with Colvard(R)pupillometer, Sirius(R) in the scotopic light condition and with ORBScan II(R), Sirius(R) in the photopic light condition. Patients filled out questionnaire about night vision disturbance at postoperative three months. Correlation between pupil size according to measuring methods and night vision disturbance was evaluated. RESULTS: The mean age of patient was 26 years and number of male patients was 36. In scotopic light condition, pupil size measured with Colvard(R)pupillometer (6.76 mm) was significantly larger than that of Sirius(R) (6.53 mm) (p < 0.001). In photopic light condition, pupil size measured with ORBScan II(R) (3.98 mm) was significantly smaller than that of Sirius(R) (4.41 mm) (p < 0.001). Night vision disturbance were correlated with pupil size and Sirius(R) in the scotopic light condition had strongest correlation among three measuring method (r = 0.44). CONCLUSIONS: Sirius(R) tends to measure pupil size smaller than Colvard(R)pupillometer in the scotopic light condition. The correlation between night vision disturbance and pupil size was highest in Sirius(R).
Eye
;
Humans
;
Light
;
Male
;
Night Vision
;
Pupil
;
Surveys and Questionnaires
;
Refractive Surgical Procedures
;
Retrospective Studies
9.Trends in the Incidence of Hospitalized Acute Myocardial Infarction and Stroke in Korea, 2006-2010.
Rock Bum KIM ; Byoung Gwon KIM ; Yu Mi KIM ; Jeong Wook SEO ; Young Shil LIM ; Hee Sook KIM ; Hey Jean LEE ; Ji Young MOON ; Keon Yeop KIM ; Ji Yeon SHIN ; Hyeung Keun PARK ; Jung Kook SONG ; Ki Soo PARK ; Baek Geun JEONG ; Chan Gyeong PARK ; Hee Young SHIN ; Jong Won KANG ; Gyung Jae OH ; Young Hoon LEE ; In Whan SEONG ; Weon Seob YOO ; Young Seoub HONG
Journal of Korean Medical Science 2013;28(1):16-24
This study attempted to calculate and investigate the incidence of hospitalized acute myocardial infarction (AMI) and stroke in Korea. Using the National Health Insurance claim data, we investigated patients whose main diagnostic codes included AMI or stroke during 2006 to 2010. As a result, we found out that the number of AMI hospitalized patients had decreased since 2006 and amounted to 15,893 in 2010; and that the number of those with stroke had decreased since 2006 and amounted to 73,501 in 2010. The age-standardized incidence rate of hospitalized AMI, after adjustment for readmission, was 41.6 cases per 100,000-population in 2006, and had decreased to 29.4 cases in 2010 (for trend P < 0.001). In the case of stroke was estimated at 172.8 cases per 100,000-population in 2006, and had decreased to 135.1 cases in 2010 (for trend P < 0.001). In conclusion, the age-standardized incidence rates of both hospitalized AMI and stroke in Korea had decreased continuously during 2006 to 2010. We consider this decreasing trend due to the active use of pharmaceuticals, early vascular intervention, and the national cardio-cerebrovascular disease care project as the primary and secondary prevention efforts.
Acute Disease
;
Adolescent
;
Adult
;
Age Factors
;
Aged
;
Aged, 80 and over
;
Child
;
Child, Preschool
;
Female
;
Hospitalization/*trends
;
Humans
;
Incidence
;
Infant
;
Infant, Newborn
;
Male
;
Middle Aged
;
Myocardial Infarction/*epidemiology
;
Patient Readmission
;
Republic of Korea/epidemiology
;
Sex Factors
;
Stroke/*epidemiology
;
Young Adult
10.Acute Lymphoblastic Leukemia in Elderly Patients: A Single Institution's Experience.
Dong Yeop SHIN ; Inho KIM ; Ki Hwan KIM ; Younak CHOI ; Seung Hoon BEOM ; Yaewon YANG ; Yoojoo LIM ; Eunyoung LEE ; June Koo LEE ; Ji Yeon KIM ; Hyun Kyung KIM ; Sung Soo YOON ; Dong Soon LEE ; Seonyang PARK ; Byoung Kook KIM
The Korean Journal of Internal Medicine 2011;26(3):328-339
BACKGROUND/AIMS: We investigated the clinical characteristics and prognosis of elderly patients with acute lymphoblastic leukemia (ALL). METHODS: We reviewed the clinical data, laboratory findings, bone marrow findings, and cytogenetic analysis of elderly patients (> or = 60 years) with ALL, and data of an additional 101 younger adult patients (< 60 years) with ALL were reviewed for comparison. RESULTS: Twenty-six elderly patients (> or = 60 years) and 101 younger adult patients (< 60 years) with ALL were retrospectively enrolled. The median follow-up duration was 6.0 months (range, 0.4 to 113.2) in the elderly patients and 21.7 months (range, 1.0 to 122.7) in the adult patients. In total, 34.6% (9 patients) of the elderly patients and 24.8% (25 patients) of the adult patients had Philadelphia chromosome positive ALL. The overall complete remission (CR) rate was much higher in the younger than in the elderly patients (94.1% vs. 57.7%, p < 0.001). The median overall survival (OS) of the younger patients (< 60 years) was 26.3 months, whereas that of the elderly patients (> or = 60 years) was 10.3 months (p = 0.003). In the elderly patients with ALL, T cell lineage and the presence of lymphadenopathy were significant prognostic factors for OS in a univariate analysis (p = 0.033 and 0.041, respectively). CONCLUSIONS: The outcomes of Korean elderly patients with ALL were poor, and the shorter OS was mainly due to the low CR rate. T-cell lineage and the presence of lymphadenopathy were significant prognostic factors in Korean elderly patients with ALL.
Adolescent
;
Adult
;
Age Factors
;
Aged
;
Aged, 80 and over
;
Bone Marrow Examination
;
Chi-Square Distribution
;
Disease-Free Survival
;
Female
;
Humans
;
Kaplan-Meier Estimate
;
Logistic Models
;
Male
;
Middle Aged
;
Philadelphia Chromosome
;
*Precursor Cell Lymphoblastic Leukemia-Lymphoma/diagnosis/drug therapy/genetics/immunology/mortality
;
Proportional Hazards Models
;
Remission Induction
;
Republic of Korea
;
Retrospective Studies
;
Risk Assessment
;
Risk Factors
;
Survival Rate
;
Time Factors
;
Treatment Outcome
;
Young Adult

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