• Journal of the Korea Convergence Society
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• v.11 no.8
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• pp.317-321
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• 2020

This study researched the correlation between myopic refractive errors and intraocular pressure. The study population comprised 39 adults(17 of males, 22 of females). We measured the intraocular pressure using a Non-Contact Tonometer(NCT) and the correlation between myopic refractive errors was analyzed by dividing into three groups: mild, moderate, high myopia. The gender of subjects showed no statistically difference between the intraocular pressure and refractive errors, but as the refractive errors increased, the intraocular pressure incereased, which showed a statistically significant difference. In addition, the higher intraocular pressure in moderate and high myopia than mild myopia can cause glaucoma, that can develop at a young age. it is need to sufficient recognition and understanding correlation between intraocular pressure and myopic refractive errors in the middle-aged high myopia.

• Journal of Korean Ophthalmic Optics Society
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• v.19 no.1
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• pp.121-133
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• 2014

Purpose: In this study, we analyzed the progression and prevalence of myopia according to age for the last five years. Methods: We have done a comparative analysis of the progression and prevalence of myopia with the Korean National Health and Nutrition Examination Survey document from 2008 to 2012. Results: According to classification of myopia by age group for the last five years, the prevalence of low myopia was 25.5% for 5-11ages group, 25.1% for 12-18ages, 27.3% for 19-29ages, 30.7% for 30-39ages, 29.6% for 40-49ages, 19.2% for 50-59ages, 11.8% for 60-69ages, and 20.2% for over 70ages respectively. The prevalence of moderate myopia was 21.7% for 5-11ages group, 43.6% for 12-18ages, 36.2% for 19-29ages, 30.0% for 30-39ages, 20.4% for 40-49ages, 9.9% for 50-59ages, 5.2% for 60-69ages, and 7.6% for over 70ages respectively. The prevalence of high myopia was 2.1% for 5-11ages group, 11.7% for 12-18ages, 11.5% for 19-29ages, 6.9% for 30-39ages, 5.6% for 40-49ages, 1.9% for 50-59ages, 1.5% for 60-69ages, and 1.0% for over 70ages respectively. Conclusions: We must recognize an importance to the increase of the progression and prevalence of myopia, so it is necessary to provide a social interest in prevention of deteriorating vision and eye health welfare.

• The Journal of Korean Academic Society of Nursing Education
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• v.11 no.2
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• pp.214-221
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• 2005

Purpose: This study was to investigate the perception of the myopia in early school-aged children's mother and develope myopia preventive education program. Method: Data was collected from June 1th to 24th, 2003. The sample group(two elementary schools in A city)consisted of 105students mother with normal vision(naked vision 1.0 or more), 105 students mother with subnormal vision(0.7 or less). The data was analyzed using S.A.S. For the test of homogeneity and significance of variable, Fisher's Exact test and Student's t-test were used. Results: 1. There was significant difference in perception of being changed the children's eyesight between normal and myopia group(t=7.86, p=.0492). 2. High scores of cause of myopia were distance from TV or computer to viewer and time of watching TV or using computer in both groups. 3. There was significant difference in perception score of cause of myopia in the myopia group was 13.26, and 18.04 in the normal group(t=3.01, p=0.003). Especially in the unbalanced and regulated diet, regulated exercise, distance of eyes reading books and illumination, normal group had more perception score than myopia group. Conclusion: A myopia education program for children and parents should be planed and the effect be verified.

• The Journal of the Korea Contents Association
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• v.9 no.12
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• pp.556-565
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• 2009

In this paper, we propose a CAD software framework to automatically generate a shop drawing. Shop drawing is to draw the geometric figures representing an arrangement of steel bars for a concrete building on its structural design, based on its construction specifications and the design rules, and its well-formed process lead to be automated. A key point of the design automation is to minimize the user interactions by automatically recognizing the design specifications and to finally generate the shape of the geometric figures. The graphic pipeline of the proposed framework consists of four stages; a specification DB, specification extraction, binding, and rendering. To effectively extract all specifications only for a figure from the DB and bind them to its shape, we use a hierarchical approach; the specifications are classified into three common, structural, and figure classes, and each attribute is extracted in design phases. Based on our framework, we implemented a specialized CAD for shop drawing using AutoCAD and could easily update it according to user's demands.

• Journal of Korean Medical classics
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• v.19 no.3
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• pp.13-32
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• 2006

다산시조선후기(茶山是朝鮮後期)(1762-1836년(年))걸출적실학대가(傑出的實學大家), 타사하료제다방면걸출적저작(他寫下了諸多方面傑出的著作). 본논문연구배판료타적유관의학방면적내용(本論文硏究排判了他的有關醫學方面的內容). 인위타적박학다식(因爲他的博學多識), 재의학방면역제출료제다견해(在醫學方面亦提出了諸多見解), 여재전문관술마언적치료서(如再專門關述痲疹的治療書) ${\ulcorner}$마과회통(痲科會通)${\lrcorner}$, 배판료근근통과촌구맥진(排判了僅僅通過寸口脈診), 변설가변청장부허실적부분의생경율적태도(便設可辨淸臟腑虛實的部分醫生輕率的態度); 접납료당시대근시(接納了當時對近視), 원시과학연구적관점(遠視科學硏究的觀點); 제시료동일약물수착산지부동기약효역유차별(提示了同一藥物隨着産地不同其藥效亦有差別), 응근거산지조절약량(應根據産地調節藥量), 병지출당시사용부당적부분약물(幷指出當時使用不當的部分藥物). 단인위미능대동양의학경전저작진행충분적연구(但因爲未能對東洋醫學經典著作進行充分的硏究), 몰법대동양의학적근본사상(沒法對東洋醫學的根本思想), 즉천인상응관(卽天人相應觀), 음양오행관(陰陽五行觀), 정체관등유충분적인식(整體觀等有充分的認識), 고이곡해료부분동양의학기본사상급원이체계(故而曲解了部分東洋醫學基本思想及原理體系).

• Journal of Digital Convergence
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• v.12 no.12
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• pp.485-490
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• 2014

The purpose of this Study investigated corneal power, corneal astigmatism and corneal axis according to spherical equivalent of refractive error. We measured spherical equivalent, corneal power and corneal astigmatism in 100 subjects from January 2014 to July 2014. Measured spherical equivalent of refractive error were $-3.01{\pm}3.79D$, corneal power of $43.79{\pm}1.60D$ and corneal astigmatism of $-1.17{\pm}0.79D$ respectively. Prevalence of spherical equivalent of refractive error were as follows : myopes (61%), emmetropes (22%), hyperopes(17%). Corneal astigmatism of refractive error greater than +0.75D was 63% and prevalence of corneal astigmatism were as follows : with-the-rlue astigmatism (84.13%), against-the-rule astigmatism(9.52%) respectively. Corneal power by spherical equivalent increased from hyperopia to myopia. Between spherical equivalent of refractive error and the mean corneal power was significant correlation(r=-0.25, p=0.01). A correlation were found between corneal power and spherical equivalent of refractive error in adults. They have the highest distribution of prevalence myopia among the refractive error. When the refractive error was increased, we found that corneal power was steeper. It is recognized that this can be refractive error factor and correct visual function is considered.

• Journal of the Korea Convergence Society
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• v.9 no.12
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• pp.273-279
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• 2018

This study researched how the refraction error and illumination influence to contrast sensitivity when we wear the circle contact lenses. The study population comprised 16 students and adults(5 of Male, 11 of Female). The study population comprised 16 students and adults(5 of Male, 11 of Female), We measured the contrast sensitivity on uncorrected vision, according to color of circle contact and change the illumination of laboratory. The contrast sensitivity by illumination decreased than unaided vision when they wore the color contact lenses and more increased mesopic than photopic. Compared between black and brown lenses, brown was higher the contrast sensitivity than black. Also emmetropia had significantly differences when we compared the contrast sensitivity of subjects who had emmetropia, myopia and myopia astigmatism whether refractive error has or not. Therefore, it is important to provide sufficient understanding and recognition of color contact lenses.

• Journal of Korean Ophthalmic Optics Society
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• v.13 no.4
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• pp.37-42
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• 2008

Purpose: The objective of the study: At present, the spectacles, with its use as a medical aids or a fashion trimming, are recognized as one of the living necessities which can't be separated from human body. One of the features of spectacles is that it must be worn on any part of human body. Such a feature has to be satisfied under the condition an user keeps feeling comfortable with the rim of spectacles worn. In order to ensure meeting this condition, a criterion has to be arranged for the design of the rim of spectacles. In order to manufacture a rim of spectacles which allows an user to secure a comfortable range of vision as well as enhancing the feeling when to be worn, a manufacturing standard has to be established based on optical science. No precise rim of spectacles could be made from the manufacturing method depending on the manufacturer's sensibility. When the rim of spectacles was manufactured according to the incorrect standards, it may cause an user such a fatal result as myopia, hyperopia or astigmatism. Methods: This study focuses on providing a detailed explanation about the design of rim, which is the most important element during designing a rim of spectacles, making use of the optical elements of spectacles, and helping the manufacturers and the people who work in the spectacles-related business understand and recognize what is correct and exact and then leading them to establish a standard in respect to the manufacture and selection of spectacles. Results, Conclusions: Considering the fact there happen many errors in relation with the names of rim stipulated in the provisions of International Standards Organization (ISO), due to wrong interpretation by some of the rim manufacturers, the right interpretation should be given about the bridge which is directly connected to rim, so that the rims of spectacles manufactured in Korea could keep a favorable position in competing with the foreign products of same kinds.