초등학교 고학년 아동의 컴퓨터 게임 양상과 정서 및 행동 특성

이자영,박태원,이문숙,조은정,정영철,황익근,양종철,정상근,정애자,은홍배,Lee, Ja-Yeong,Park, Tae-Won,Lee, Moon-Sook,Cho, Eun-Cheong,Chung, Young-Chul,Hwang, Ik-Keun,Yang, Jong-Chul,Chung, Sang-Keun,Jung, Ae-Ja,Eun, Hong-Bae 대한불안의학회 2008 대한불안의학회지 Vol.4 No.2

Objective : The purpose of this study was to investigate the relationship between the pattern of computer game play and emotional and behavioral characteristics of 5th and 6th grade elementary school children in Jeonju city. Methods : Fifth and sixth graders from two elementary schools (N=413, M=214, F=199) were chosen to participate in this study. The participants completed self-report questionnaires designed by the authors, and were also evaluated based on a computer game addiction scale, state-trait anxiety inventory for children, children's depression inventory and Piers-Harris children's self-esteem scale. The parents of the participants determined the disruptive behavior rating scale of the participants. Results : Positive links were reported between the pattern of computer game play (years of computer game experience, average length of each computer game play session, average time spent on computer game play per day, and average frequency of computer game play per week) and scores of computer game addiction scale. In addition, significant correlation was found between the internalized problems of children (trait anxiety, state anxiety, depression, and self-esteem), and computer game addiction scale score, among both sexes (p<0.01). There were significant correlations between game addiction scale score and inattention (p<0.01) as well as total attention deficit hyperactivity disorder (ADHD) score (p<0.05) in girls. Conclusion : Our findings suggest that computer game addiction is related to symptoms of internalizing, particularly to the trait anxiety. Significant positive correlations between game addiction scale score and externalized behavioral problems were found only in girls.

경면현미경과 동일초점현미경을 이용한 각막내피 평가의 비교

이자영,이승희,정성근,이해영,Ja Young Lee,Seung Hee Lee,Sung Kun Chung,Ph,D,Hae Young Lee 대한안과학회 2008 대한안과학회지 Vol.49 No.10

Purpose: To compare the results of specular microscopy with those of confocal microscopy for evaluation of corneal endothelium. Methods: We evaluated corneal endothelium of 103 eyes using specular microscopy and confocal microscopy. Endothelial cell density, pleomorphism, and polymegathism were measured using a ConfoScan 4 confocal microscope (Nidek Technologies, Inc, Greensborom, NC) in automatic mode before and after manual correction. Also, endothelial cell density, the coefficient of variation, and hexagonality were evaluated using a Konan Noncon Robo-8400 noncontact specular microscope (Konan medical, Inc., Hyogo, Japan). The differences in results obtained from these various methods were compared: polymegathism was compared with the coefficient of variation, and pleomorphism was compared with the inversion of hexagonality. Results: Endothelial cell density as measured by specular microscopy, the automatic count of confocal microscopy, and the manual correction for confocal microscopy were 2797.6±354.14 cell/mm2, 2973.1±284.24 cell/mm2, and 2861.9±335.58 cell/mm2, respectively. Results of each test was not significantly different (p=0.241). The inversion of hexagonality, pleomorphism of automatically counted confocal microscopy, and the pleomorphism of manually corrected confocal microscopy were 56.14%, 54.77%, and 55.24%, respectively. Results of each test were not significantly different (p=0.147).The coefficient of variation of specular microscopy, the polymegathism of automatic counted confocal microscopy, and the polymegathism of manually corrected confocal microscopy were 33.71%, 39.68%, and 38.75%, respectively. Results of each test were significantly different (p=0.005). Conclusions: Endothelial cell density and polymegathism as measured by confocal microscopy were not different from specular microscopy results in normal corneas, but these results were different for polymegathism in normal corneas. Therefore, manual correction for endothelial cell evaluation of a disordered cornea should be performed during clinical evaluation. J Korean Ophthalmol Soc 2008;49(10):1572-1577

유리체절제술 시행 후 각막내피세포밀도의 변화

이자영,이미리,최경식,이성진,Ja Young Lee,MD,Mi Ri Rhee,MD,Kyung Seek Choi,MD,PhD,Sung Jin Lee,MD,PhD 대한안과학회 2011 대한안과학회지 Vol.52 No.5

Purpose: To assess the effect of pars plana vitrectomy and gas tamponade on corneal endothelial cell density. Methods: The corneal endothelial cell density in 145 eyes that underwent pars plana vitrectomy was examined with a noncontact specular microscope 3 months pre- and post-operation. The subjects were divided as follows: Group 1 (32 eyes) underwent pars plana vitrectomy, group 2 (26 eyes) underwent pars plana vitrectomy combined with gas tamponade, group 3 (34 eyes) underwent pars plana vitrectomy combined with phacoemulsification and group 4 (48 eyes) underwent pars plana vitrectomy combined with phacoemulsification and gas tamponade. The changes in corneal endothelial cell density between groups was compared. Results: The mean endothelial cell loss was more significant in group 2 than in group 1 (p = 0.012), and there was no difference between groups 3 and 4 (p = 0.063). However, after excluding 6 eyes that had blood in the center of the corneal endothelium as a result of being in the prone position following gas tamponade, the mean endothelial cell loss in group 2 was not less than in group 1. In eyes with blood in the corneal endothelium, endothelial cell loss significantly increased (p < 0.001). Conclusions: The results of this study suggest that ophthalmic surgeons should attempt to carefully control bleeding and sufficiently irrigate the vitreous during pars plana vitrectomy combined with gas tamponade. J Korean Ophthalmol Soc 2011;52(5):544-549

신생아의 안과검사에서 발견된 안과적인 이상

이자영,정문선,김소영,Ja Young Lee,Moon Sun Jung,So Young Kim 대한안과학회 2011 대한안과학회지 Vol.52 No.2

Purpose: To investigate incidental abnormal ocular findings that may cause visual impairment in neonates. Methods: The medical records of patients requested for screening for retinopathy of prematurity (ROP) at our hospital’s pediatrics department between March 2005 and July 2009 were retrospectively reviewed. Patients were classified into premature and mature neonates according to gestational age (under 37 weeks). Results: A total of 2,090 eyes from 1,045 patients were comprised of 1,514 eyes of 757 premature neonates and 576 eyes of 288 mature neonates. Among 154 eyes of 78 patients (10.17%) who were diagnosed with ROP, 34 eyes of 18 patients had laser treatment. Seven eyes of 5 patients in the premature neonate group (0.46%), and 38 eyes of 23 patients in the mature neonate group (6.57%) were found to have abnormal ocular findings, excluding incidental ROP. Twenty-six eyes of 16 patients were found to have a retinal hemorrhage, and the majority had a birth history of perinatal distress, including birth asphyxia, meconium aspiration, and transient tachypnea of the newborn. Other findings included congenital cataracts, corneal opacity, macular coloboma, persistent hyperplastic primary vitreous, and abnormal fundus. Conclusions: The incidence of ocular abnormalities in neonates that cause visual impairment is low, but theses may threaten a child’s life. Early detection and prompt treatment of ocular disorders in children are important in order to avoid permanent, lifelong visual impairment. Therefore, ophthalmic examinations are essential, even in normal neonates, for early detection of ocular disorders. J Korean Ophthalmol Soc 2011;52(2):222-226

윤부포함 전체 각막이식 2예

이자영,김미금,위원량,Ja Young Lee,Mee Kum Kim,Won Ryang Wee 대한안과학회 2011 대한안과학회지 Vol.52 No.10

Purpose: To report the clinical outcomes of total corneolimbal transplantation in two cases. Case summary: One patient, who previously underwent three rounds of penetrating keratoplasty and limbal transplantation for uncontrollable peripheral and central corneal melting, received total corneolimbal transplantation. The other patient who underwent penetrating keratoplasty with limbal transplanation for a chemical burn and who did not experience corneal perforation also received total corneolimbal transplantation. During the average 19 months of follow-up, cyclophotocoagulation was performed to control high intraocular pressure in both patients. Both eyes were tectonically maintained without further corneal destruction despite poor visual acuity and rejection. Conclusions: Total corneolimbal transplantation may be an effective tectonic procedure for corneal melting. This procedure can be considered as another option for patients with corneal melting after failed limbal and corneal transplantation. J Korean Ophthalmol Soc 2011;52(10):1238-1243

외사시 수술 후 초기 외편위로의 회귀 속도와 재발의 관계

이자영,김소영,Ja Young Lee,So Young Kim 대한안과학회 2012 대한안과학회지 Vol.53 No.4

Purpose: To evaluate the relationship between velocity of exotropic drift and recurrence after surgical correction of intermittent exotropia. Methods: The medical records were retrospectively reviewed preoperatively and at the following postoperative time periods: 1 and 5 weeks and 3, 6, and 12 months. The monthly change in alignment velocity in patients who demonstrated tendencies of exotropic drift was measured. The correlation between each data point and the velocity of total period (from 1 week to 12 months) was analyzed. According to the best correlated velocity of the time period, the patients were divided into 2 groups, and the motor success rates were assessed. Each group was further divided into 3 subgroups (esotropia, orthophoria and exotropia) according to angle of deviation at 1 week, and motor success rates were assessed again. Results: Exotropic drift tendency was exhibited in 113 patients (91.13%). The mean postoperative monthly change in alignment velocity of total period showed the highest correlation with 1 month (Pearson, r = 0.61). The 2 groups divided by 3.57 PD/M were not different in motor success rate. The group showing exotropia at 1 week and high exotropic drift velocity at 1 month had a low success rate (Mann-Whitney, p = 0.03). Conclusions: The velocity of exotropic drift at postoperative 1 month best reflected the total velocity but did not influence the recurrence rate. Based on the results from the present study, patients with exotropia and high exotropic drift velocity at postoperative 1 month have a greater likelihood of recurrence compared to the others. J Korean Ophthalmol Soc 2012;53(4):572-576

말초 혈액 내 호산구증가증을 동반한 항 골수세포형과산화효소 항체 양성 초승달 사구체신염 1예

이자영 ( Ja Young Lee ),윤유선 ( Yu Seon Yun ),김영수 ( Young Soo Kim ),김영옥 ( Young Ok Kim ),윤선애 ( Sun Ae Yoon ),양철우 ( Chul Woo Yang ),김용수 ( Yong Soo Kim ),김석영 ( Suk Young Kim ) 대한신장학회 2008 춘계학술대회 초록집 Vol.28 No.1

인터페론 치료에 실패한 만성 B형 간염 환자에서 라미부딘 치료 효과

이자영 ( Ja Young Lee ),김억 ( Auk Kim ),이진헌 ( Jin Heon Lee ),김용범 ( Yong Bum Kim ),김학양 ( Hak Yang Kim ),유재영 ( Jae Young Yoo ) 대한소화기학회 2002 대한소화기학회 춘계학술대회 Vol.2002 No.-

<목적> 만성 B형 간염에서 현재까지 효과가 입증된 약물로는 인터페론과 라미부딘이 있으며, 각각의 약제는 장단점이 있으므로 환자에 따라 알맞은 약물로 선택하고 있다. 그러나 각각의 약제 치료에 실패한 경우 다른 치료에 대한 효과에 대한 연구는 많지 않다. 본 연구에서는 인터페론 치료에 실패한 환자들에서 라미부딘을 사용한 경우 치료의 반응율을 알아보고자 하였다. <방법> 간조직 및 혈청검사로 만성 B형 간염으로 진단받고 인터페론 5백만 단위를 주 3회 6

시신경염과 사지마비를 동반한 전신홍반루푸스 1예

이자영 ( Ja Young Lee ),김유정 ( You Jeong Kim ),이지현 ( Ji Hyun Lee ) 대한류마티스학회 2013 대한류마티스학회지 Vol.20 No.1

저자들은 시력 감소 및 사지마비를 동반한 전신홍반루푸스 환자에서 NMO-IgG 양성, 자기공명영상 소견 등을 토대로 시신경척수염을 진단하고 고용량 스테로이드, 혈장 교환술, 자가면역 억제 요법 등을 통하여 증상 호전된 증례를 경험하였기에 보고 하는 바이다. 시신경척수염은 성인에서 예후가 좋지 않은 만큼 그에 따른 신속한 치료 계획 수립이 병의 경과 및 예후에 중요할 것으로 생각된다. Neuromyelitis optica (NMO) is an idiopathic, severe inflammatory demyelinating disease of the central nervous system targeting optic nerves and the spinal cord. It is characterized by acute bilateral visual loss (optic neuritis), acute transverse myelitis, and tends to spare brain early in the disease course. NMO can occur as an isolated condition or secondary to infection, toxin exposure, and autoimmune disease including systemic lupus erythematosus (SLE), sarcoidosis, and Behcet``s disease. We experienced a case of SLE with myelitis and recurrent optic neuritis in a 28-year-old woman who presented with recurrent visual disturbance and sudden onset of paraplegia, and report here on this case along with a review of the relevant literature.

고강도 PC와 일반강도 RC로 구성된 합성기둥의 압축성능 평가

이자영(Lee, Ja-Young),이창환(Lee, Chang-Hwan),주영규(Ju, Young-Kyu),김영식(Kim, Young-Sik),김상대(Kim, Sang-Dae) 대한건축학회 2015 大韓建築學會論文集 : 構造系 Vol.31 No.3

In this paper, new PC-RC composite column named ES<SUP>2</SUP> system was proposed. To tranfer the shear forces between the high-strength PC and normal-strength RC, two types of shear keys were compared: hemispheric- and trapezoid-shaped shear keys. Tests on short column specimen were carried out to evaluate compressive capacity based on the existence and shape of the shear key. Crack patterns and strain distributions were also observed. From the result, it was found that compressive strength of the column with shear keys could be reduced depending on the arrangement and shape of shear keys. Otherwise, it was found that shear keys have a positive effect on integrity of the composite column. The proposed equation to predict the compressive strength of a PC-RC composite column showed good agreement with the experimental results.