1.The Effect of Near-work on the Development of Delayed-onset Consecutive Esotropia
Edward KANG ; Suk-Gyu HA ; Seung-Hyun KIM
Journal of the Korean Ophthalmological Society 2021;62(6):820-825
Purpose:
To identify the correlation between near work and the occurrence of delayed-onset consecutive esotropia after surgery for intermittent exotropia.
Methods:
A survey and retrospective review were conducted on patients in two groups. The study included patients who visited from January 2019 to January 2020. Patients who re-developed esodeviation after recovering orthophoria after the initial postoperative overcorrection for the surgical correction of intermittent exotropia were included in the delayed-onset esotropia group (Group 1), and patients with persistent orthotropia for at least 3 years after bilateral lateral rectus recession for intermittent exotropia were included in Group 2. We evaluated the daily frequency and hours of distanceear work in both groups.
Results:
A total of 42 patients were evaluated. Preoperative exodeviation at a distance was 28.5 ± 4.4 prism diopters (PD) in group 1 and 30.5 ± 5.2 PD in group 2, with no significant difference between the two groups. The percentages of patients who chose two or more extremely near-work activities a day were 47.8% and 15.8% for groups 1 and 2, respectively; these values were statistically significant (p = 0.02). Twelve patients in Group 2 answered “watching TV” (63.2%) as the most common activity, which was statistically significant compared to Group 1 (26.1% in Group 1, p = 0.02). The total numbers of hours of extremely near-work a day were 2.7 ± 2.1 and 1.5 ± 1.2 hours for groups 1 and 2, respectively, which was also statistically significant (p = 0.037).
Conclusions
We found a significant correlation with occurrence of delayed-onset consecutive esotropia with the frequency and hours of extremely near-work after bilateral lateral rectus recession for intermittent exotropia. More attention to extremely near-work should be considered carefully after bilateral lateral rectus recession for intermittent exotropia.
2.The Effect of Near-work on the Development of Delayed-onset Consecutive Esotropia
Edward KANG ; Suk-Gyu HA ; Seung-Hyun KIM
Journal of the Korean Ophthalmological Society 2021;62(6):820-825
Purpose:
To identify the correlation between near work and the occurrence of delayed-onset consecutive esotropia after surgery for intermittent exotropia.
Methods:
A survey and retrospective review were conducted on patients in two groups. The study included patients who visited from January 2019 to January 2020. Patients who re-developed esodeviation after recovering orthophoria after the initial postoperative overcorrection for the surgical correction of intermittent exotropia were included in the delayed-onset esotropia group (Group 1), and patients with persistent orthotropia for at least 3 years after bilateral lateral rectus recession for intermittent exotropia were included in Group 2. We evaluated the daily frequency and hours of distanceear work in both groups.
Results:
A total of 42 patients were evaluated. Preoperative exodeviation at a distance was 28.5 ± 4.4 prism diopters (PD) in group 1 and 30.5 ± 5.2 PD in group 2, with no significant difference between the two groups. The percentages of patients who chose two or more extremely near-work activities a day were 47.8% and 15.8% for groups 1 and 2, respectively; these values were statistically significant (p = 0.02). Twelve patients in Group 2 answered “watching TV” (63.2%) as the most common activity, which was statistically significant compared to Group 1 (26.1% in Group 1, p = 0.02). The total numbers of hours of extremely near-work a day were 2.7 ± 2.1 and 1.5 ± 1.2 hours for groups 1 and 2, respectively, which was also statistically significant (p = 0.037).
Conclusions
We found a significant correlation with occurrence of delayed-onset consecutive esotropia with the frequency and hours of extremely near-work after bilateral lateral rectus recession for intermittent exotropia. More attention to extremely near-work should be considered carefully after bilateral lateral rectus recession for intermittent exotropia.
3.Effects of Low-Dose Atropine over 1 Year on Myopia Progression in Elementary School Children
Eunseok KANG ; Suk Gyu HA ; Soo KIM ; Youngwoo SUH ; Seung-Hyun KIM
Annals of Optometry and Contact Lens 2024;23(3):114-119
Purpose:
To compare the myopic progression between pateints only wearing glasses (Myopia group) and patients using low-dose atropine with glasses (Atropine group) for 1 years or more.
Methods:
Medical records were retrospectively reviewed. Low-dose atropine (atropine sulfate 0.125%) and artificial tear eyedrops (sodium hyaluronate 0.1%) were applied immediately afterwards to both eyes daily to the Atropine group. All children regularly visited our clinic for measurement of refractive power, axial length, near-point accomodation, pupil diameter, symptoms (glare, near-work disturbance, headache, allergic reaction, dryness) were recorded.
Results:
A total of 240 patients were included. Atropine was prescribed for 138 patients, the Atropine group, and the remaining 102 patients constituted the Myopia group, and were observed for 20.3 ± 7.8 months. In the initial visit, the mean refractive power was -4.2 ± 1.4 diopters (D) for the Myopia group, -4.8 ± 1.9 D for the Atropine group, and the mean axial length was 24.5 ± 0.6 mm for the Myopia group, 25.1 ± 0.9 mm for the Atropine group. During follow up, in the Myopia group, mean refractive power changed -0.10 ± 0.12 D/month, and mean axial length changed 0.06 ± 0.01 mm/month. In the Atropine group, mean refractive power changed -0.03 ± 0.04 D/month, and mean axial length changed 0.02 ± 0.02 mm/month. The pupil size of the Atropine group was 6.1 ± 0.8 mm, with 30 patients presenting symptoms.
Conclusions
Refractive power progression and axial length elongation was significantly lesser in the Atropine group than the Myopic group. Pupil diameter increased in the Atropine group, and 21% of the Atropine group complained of symptoms. Using low-dose atropine for more than 1 year was effective to suppress refractive power progression and axial length elongation.
4.Concurrent chemoradiotherapy for elderly patients with stage III non-small cell lung cancer.
Ki Mun KANG ; Bae Kwon JEONG ; In Bong HA ; Gyu Young CHAI ; Gyeong Won LEE ; Hoon Gu KIM ; Jung Hoon KANG ; Won Seob LEE ; Myoung Hee KANG
Radiation Oncology Journal 2012;30(3):140-145
PURPOSE: Combined chemoradiotherapy is standard management for locally advanced non-small cell lung cancer (LA-NSCLC), but standard treatment for elderly patients with LA-NSCLC has not been confirmed yet. We evaluated the feasibility and efficacy of concurrent chemoradiotherapy (CCRT) for elderly patients with LA-NSCLC. MATERIALS AND METHODS: Among patients older than 65 years with LA-NSCLC, 36 patients, who underwent CCRT were retrospectively analyzed. Chemotherapy was administered 3-5 times with 4 weeks interval during radiotherapy. Thoracic radiotherapy was delivered to the primary mass and regional lymph nodes. Total dose of 54-59.4 Gy (median, 59.4 Gy) in daily 1.8 Gy fractions and 5 fractions per week. RESULTS: Regarding the response to treatment, complete response, partial response, and no response were shown in 16.7%, 66.7%, and 13.9%, respectively. The 1- and 2-year overall survival (OS) rates were 58.2% and 31.2%, respectively, and the median survival was 15 months. The 1- and 2-year progression-free survivals (PFS) were 41.2% and 19.5%, respectively, and the median PFS was 10 months. Regarding to the toxicity developed after CCRT, pneumonitis and esophagitis with grade 3 or higher were observed in 13.9% (5 patients) and 11.1% (4 patients), respectively. Treatment-related death was not observed. CONCLUSION: The treatment-related toxicity as esophagitis and pneumonitis were noticeably lower when was compared with the previously reported results, and the survival rate was higher than radiotherapy alone. The results indicate that CCRT is an effective in terms of survival and treatment related toxicity for elderly patients over 65 years old with LA-NSCLC.
Aged
;
Carcinoma, Non-Small-Cell Lung
;
Chemoradiotherapy
;
Disease-Free Survival
;
Esophagitis
;
Humans
;
Lymph Nodes
;
Pneumonia
;
Retrospective Studies
;
Survival Rate
5.Age of asthma onset and its relevance to adult asthma in the general population
Ha-Kyeong WON ; Yewon KANG ; Jin AN ; Ji-Hyang LEE ; Min-Gyu KANG ; Tae-Bum KIM ; Woo-Jung SONG
Allergy, Asthma & Respiratory Disease 2025;13(1):22-29
Purpose:
The classification of asthma phenotypes frequently depends on the age of onset. However, the rationale for specific age cutoffs remains unclear. This study aimed to explore the distribution of asthma onset age, to define subgroups based on onset age, and to examine their characteristics within a broad Korean population.
Methods:
An analysis of cross-sectional data involving 56,632 participants from the Korean National Health and Nutrition Examination Survey (2010–2016) was conducted. Data on asthma history, including diagnosis, self-reported age of asthma onset, and current disease status, were collected using structured questionnaires.
Results:
The distribution of asthma onset age showed a distinct peak in early childhood, with a decline between the ages 15 and 20.Based on this distribution, asthma was categorized into childhood-onset ( ≤ 18 years) and adult-onset ( > 18 years) for further analysis.Multivariate analyses indicated that adult-onset asthma was associated with older age, female sex, obesity, and a history of smoking, whereas childhood-onset asthma was linked to younger age, male sex, allergic rhinitis, and atopic dermatitis. Among the adultonset group, current asthma had a later onset age, increased history of smoking history, and atopic dermatitis compared to past asthma.
Conclusion
This analysis of nationwide general population data suggests that an age threshold around 18 years may be relevant for defining adult-onset asthma.
6.Age of asthma onset and its relevance to adult asthma in the general population
Ha-Kyeong WON ; Yewon KANG ; Jin AN ; Ji-Hyang LEE ; Min-Gyu KANG ; Tae-Bum KIM ; Woo-Jung SONG
Allergy, Asthma & Respiratory Disease 2025;13(1):22-29
Purpose:
The classification of asthma phenotypes frequently depends on the age of onset. However, the rationale for specific age cutoffs remains unclear. This study aimed to explore the distribution of asthma onset age, to define subgroups based on onset age, and to examine their characteristics within a broad Korean population.
Methods:
An analysis of cross-sectional data involving 56,632 participants from the Korean National Health and Nutrition Examination Survey (2010–2016) was conducted. Data on asthma history, including diagnosis, self-reported age of asthma onset, and current disease status, were collected using structured questionnaires.
Results:
The distribution of asthma onset age showed a distinct peak in early childhood, with a decline between the ages 15 and 20.Based on this distribution, asthma was categorized into childhood-onset ( ≤ 18 years) and adult-onset ( > 18 years) for further analysis.Multivariate analyses indicated that adult-onset asthma was associated with older age, female sex, obesity, and a history of smoking, whereas childhood-onset asthma was linked to younger age, male sex, allergic rhinitis, and atopic dermatitis. Among the adultonset group, current asthma had a later onset age, increased history of smoking history, and atopic dermatitis compared to past asthma.
Conclusion
This analysis of nationwide general population data suggests that an age threshold around 18 years may be relevant for defining adult-onset asthma.
7.Age of asthma onset and its relevance to adult asthma in the general population
Ha-Kyeong WON ; Yewon KANG ; Jin AN ; Ji-Hyang LEE ; Min-Gyu KANG ; Tae-Bum KIM ; Woo-Jung SONG
Allergy, Asthma & Respiratory Disease 2025;13(1):22-29
Purpose:
The classification of asthma phenotypes frequently depends on the age of onset. However, the rationale for specific age cutoffs remains unclear. This study aimed to explore the distribution of asthma onset age, to define subgroups based on onset age, and to examine their characteristics within a broad Korean population.
Methods:
An analysis of cross-sectional data involving 56,632 participants from the Korean National Health and Nutrition Examination Survey (2010–2016) was conducted. Data on asthma history, including diagnosis, self-reported age of asthma onset, and current disease status, were collected using structured questionnaires.
Results:
The distribution of asthma onset age showed a distinct peak in early childhood, with a decline between the ages 15 and 20.Based on this distribution, asthma was categorized into childhood-onset ( ≤ 18 years) and adult-onset ( > 18 years) for further analysis.Multivariate analyses indicated that adult-onset asthma was associated with older age, female sex, obesity, and a history of smoking, whereas childhood-onset asthma was linked to younger age, male sex, allergic rhinitis, and atopic dermatitis. Among the adultonset group, current asthma had a later onset age, increased history of smoking history, and atopic dermatitis compared to past asthma.
Conclusion
This analysis of nationwide general population data suggests that an age threshold around 18 years may be relevant for defining adult-onset asthma.
8.Age of asthma onset and its relevance to adult asthma in the general population
Ha-Kyeong WON ; Yewon KANG ; Jin AN ; Ji-Hyang LEE ; Min-Gyu KANG ; Tae-Bum KIM ; Woo-Jung SONG
Allergy, Asthma & Respiratory Disease 2025;13(1):22-29
Purpose:
The classification of asthma phenotypes frequently depends on the age of onset. However, the rationale for specific age cutoffs remains unclear. This study aimed to explore the distribution of asthma onset age, to define subgroups based on onset age, and to examine their characteristics within a broad Korean population.
Methods:
An analysis of cross-sectional data involving 56,632 participants from the Korean National Health and Nutrition Examination Survey (2010–2016) was conducted. Data on asthma history, including diagnosis, self-reported age of asthma onset, and current disease status, were collected using structured questionnaires.
Results:
The distribution of asthma onset age showed a distinct peak in early childhood, with a decline between the ages 15 and 20.Based on this distribution, asthma was categorized into childhood-onset ( ≤ 18 years) and adult-onset ( > 18 years) for further analysis.Multivariate analyses indicated that adult-onset asthma was associated with older age, female sex, obesity, and a history of smoking, whereas childhood-onset asthma was linked to younger age, male sex, allergic rhinitis, and atopic dermatitis. Among the adultonset group, current asthma had a later onset age, increased history of smoking history, and atopic dermatitis compared to past asthma.
Conclusion
This analysis of nationwide general population data suggests that an age threshold around 18 years may be relevant for defining adult-onset asthma.
9.Age of asthma onset and its relevance to adult asthma in the general population
Ha-Kyeong WON ; Yewon KANG ; Jin AN ; Ji-Hyang LEE ; Min-Gyu KANG ; Tae-Bum KIM ; Woo-Jung SONG
Allergy, Asthma & Respiratory Disease 2025;13(1):22-29
Purpose:
The classification of asthma phenotypes frequently depends on the age of onset. However, the rationale for specific age cutoffs remains unclear. This study aimed to explore the distribution of asthma onset age, to define subgroups based on onset age, and to examine their characteristics within a broad Korean population.
Methods:
An analysis of cross-sectional data involving 56,632 participants from the Korean National Health and Nutrition Examination Survey (2010–2016) was conducted. Data on asthma history, including diagnosis, self-reported age of asthma onset, and current disease status, were collected using structured questionnaires.
Results:
The distribution of asthma onset age showed a distinct peak in early childhood, with a decline between the ages 15 and 20.Based on this distribution, asthma was categorized into childhood-onset ( ≤ 18 years) and adult-onset ( > 18 years) for further analysis.Multivariate analyses indicated that adult-onset asthma was associated with older age, female sex, obesity, and a history of smoking, whereas childhood-onset asthma was linked to younger age, male sex, allergic rhinitis, and atopic dermatitis. Among the adultonset group, current asthma had a later onset age, increased history of smoking history, and atopic dermatitis compared to past asthma.
Conclusion
This analysis of nationwide general population data suggests that an age threshold around 18 years may be relevant for defining adult-onset asthma.
10.The Performance of Serum Biomarkers for Predicting Fibrosis in Patients with Chronic Viral Hepatitis.
Chang Seok BANG ; Ha Yan KANG ; Gyu Ho CHOI ; Suk Bae KIM ; Wonae LEE ; Il Han SONG
The Korean Journal of Gastroenterology 2017;69(5):298-307
BACKGROUND/AIMS: The invasiveness of a liver biopsy and its inconsistent results have prompted efforts to develop noninvasive tools to evaluate the severity of chronic hepatitis. This study was intended to assess the performance of serum biomarkers for predicting liver fibrosis in patients with chronic viral hepatitis. METHODS: A total of 302 patients with chronic hepatitis B or C, who had undergone liver biopsy, were retrospectively enrolled. We investigated the diagnostic accuracy of several clinical factors for predicting advanced fibrosis (F≥3). RESULTS: The study population included 227 patients with chronic hepatitis B, 73 patients with chronic hepatitis C, and 2 patients with co-infection (hepatitis B and C). Histological cirrhosis was identified in 16.2% of the study population. The grade of porto-periportal activity was more correlated with the stage of chronic hepatitis compared with that of lobular activity (r=0.640 vs. r=0.171). Fibrosis stage was correlated with platelet count (r=-0.520), aspartate aminotransferase to platelet ratio index (APRI) (r=0.390), prothrombin time (r=0.376), and albumin (r=-0.357). For the diagnosis of advanced fibrosis, platelet count and APRI were the most predictive variables (AUROC=0.752, and 0.713, respectively). CONCLUSIONS: In a hepatitis B endemic region, platelet count and APRI could be considered as reliable non-invasive markers for predicting fibrosis of chronic viral hepatitis. However, it is necessary to validate the diagnostic accuracy of these markers in another population.
Aspartate Aminotransferases
;
Biomarkers*
;
Biopsy
;
Blood Platelets
;
Coinfection
;
Diagnosis
;
Fibrosis*
;
Hepatitis B
;
Hepatitis B, Chronic
;
Hepatitis C, Chronic
;
Hepatitis*
;
Hepatitis, Chronic
;
Humans
;
Liver
;
Liver Cirrhosis
;
Platelet Count
;
Prothrombin Time
;
Retrospective Studies