• 제목/요약/키워드: eye disease

검색결과 404건 처리시간 0.036초

안저영상 해석을 위한 특징영역의 분할에 관한 연구 (A Study on the Feature Region Segmentation for the Analysis of Eye-fundus Images)

  • 강전권;한영환
    • 대한의용생체공학회:의공학회지
    • /
    • 제16권2호
    • /
    • pp.121-128
    • /
    • 1995
  • Information about retinal blood vessels can be used in grading disease severity or as part of the process of automated diagnosis of diseases with ocular menifestations. In this paper, we address the problem of detecting retinal blood vessels and optic disk (papilla) in eye-fundus images. We introduce an algorithm for feature extraction based on Fuzzy Clustering algorithm (fuzzy c-means). A method of finding the optic disk (papilla) is proposed in the eye-fundus images. Additionally, the inrormations such as position and area of the optic disk are extracted. The results are compared to those obtained from other methods. The automatic detection of retinal blood vessels and optic disk in the eye-rundus images could help physicians in diagnosing ocular diseases.

  • PDF

눈피로(안구건조) 환자에 대한 임상적 고찰 (Clinical Study on Ocular fatigue (Dry Eye) Patients)

  • 김지혁
    • 동의신경정신과학회지
    • /
    • 제23권2호
    • /
    • pp.59-66
    • /
    • 2012
  • Objectives : The purpose of this report was to examine the relation between ocular fatigue and dry eye symptoms in patients with ocular fatigue. Methods : 115 patients with ocular fatigue disease were included in this analyses. The study examination included a symptom interview that assessed stiff sense, foreign body sense, pain, soreness, redness, etc. and ocular fatigue. Results : The survey showed in subjective ocular fatigue in all subjects. All patients(115) reported symptoms of ocular fatigue and 25.2% (29/115) were diagnosed as having dry eye with symptoms. Conclusions : These findings suggest that there is a strong between ocular fatigue and dry eye.

안질환세균에 대한 도꼬마리 추출물의 항균 활성 (Antibacterial Activity of Xanthium strumarium L. Extract Against Bacteria Causing Eye Disease)

  • 한선희;김봉환
    • 한국안광학회지
    • /
    • 제13권2호
    • /
    • pp.69-73
    • /
    • 2008
  • 목적: 이 논문은 안질환세균에 대한 도꼬마리 추출물의 항균활성을 알아보아 콘택트렌즈 관리용액에 첨가되어 있는 합성보존제를 대체할 천연 보존제로서의 가능성을 제시하기 위함이다. 방법: 안질환세균에 대한 도꼬마리 추출물의 항균활성은 한천 확산법(agar diffusion test)으로 측정했으며, 항균활성은 종이원반(paper disc) 주위의 선명지대(clear zone)의 생성유무와 선명지대(clear zone)의 크기(mm)로서 알아보았다. 실험에 사용한 세균은 포도상구균 (Staphylococcus)과 녹농균(Pseudomonas)이었다. 결과: Staphylococcus aureus KCCM 40050에 대한 도꼬마리 추출 물 $1000{\mu}g/20{\mu}l$농도의 선명지대는 11.5 mm로 나타났다. 또한 Pseudomonas aeruginosa KCCM 11803 균주에 대한 도꼬마리 추출물 $1000{\mu}g/20{\mu}l$농도의 선명지대는 9.0 mm, Pseudomonas fluorescens KCCM 40223 균주에 대해서는 7.0 mm로 나타났다. 결론: 이 실험을 통해 안질환세균에 대한 도꼬마리 추출물의 항균활성이 입증되었다. 따라서 도꼬마리 추출물이 콘택트렌즈 관리용액에 첨가될 천연 보존제로서의 가치가 충분히 있다고 판단되어진다.

  • PDF

뇌졸중으로 인한 안검하수와 복시 증상에 조간익뇌탕을 투여한 치험 2례 (Two Cases of Diplopia and Ptosis from Cerebrovascular Disease Treated with Joganiknoe-tang)

  • 유윤선;박장호;배달빛;이고은;강형원;유영수
    • 동의신경정신과학회지
    • /
    • 제23권3호
    • /
    • pp.117-128
    • /
    • 2012
  • Objectives : The purpose of this study is to evaluate the effects of Joganiknoe-tang on diplopia and ptosis from cerebrovascular disease. Methods : We recruited 2 patients who have diplopia and ptosis because of cerebrovascular disease. In addition, the patients had been administrated by Joganiknoe-tang. Diplopia and ptosis of patients had been estimated with VAS (Visual Analogue Scale) and difference of both eye's interpalpebral fissure. We measured VAS (Visual Analogue Scale) and difference of both eye's interpalpebral fissure for every five days Results : After the treatments, symptoms were decreased and almost disappeared. In both cases, diplopia patients complained decreased from VAS 10 to VAS 1, and difference of both eye's interpalpebral fissure disappeared Conclusions : This study suggests that Joganiknoe-tang is significantly effective on diplopia and ptosis because of cerebrovascular disease.

안과 질환으로 한방안이비인후피부과에 의뢰된 한방병원 입원 환자에 대한 고찰 (A Study of Korean Medicine Hospital Inpatient Consulted by Korean Medicine Ophthalmology, Otolaryngology & Dermatology Department for Ophthalmology Disease)

  • 정미래;허은나;권강;서형식
    • 한방안이비인후피부과학회지
    • /
    • 제36권4호
    • /
    • pp.19-29
    • /
    • 2023
  • Objectives : The purpose of this study is to retrospectively analyze 3 years of inpatient ophthalmology consultation to Korean medicine ophthalmology, otolaryngology & dermatology department in Korean medicine hospital. Methods : We classified ophthalmological inpatient consultations between September 1st, 2019 and August 31st, 2022, based on electronic medical record by gender, age, hospitalized department, categories of diseases. Results : Total number of consultations were 111, and the average of age was 63.6. The proportion of female and male were 2.5:1. Among the 136 cases of eye disease referred, lacriminal production and discharge diseases accounted for the most at 54 cases(39.7%), of which 44 cases were dry eyes syndrome. Excluding dry eye syndrome, conjunctival disease occurred the most with 24 cases(17.6%). Consultations from department of Korean rehabilitation medicine, and Korean internal medicine were most common, because they have a comparatively large number of inpatients and long hospitalization period. Conclusions : This study identified the frequency of consultation and the disease group with many requests for each department. When inpatients complain of eye disease, consultation to Korean medicine ophthalmology, otolaryngology & dermatology department should be encouraged as accurate diagnosis and treatment using specialized equipment is possible and can be used for the purpose of progress observation and examination.

Graves병 안구증에서 $^{99m}Tc-DTPA$ 뇌신티그라피를 이용한 안구/뇌 방사능비에 관한 연구 (The Eye/Brain Radioactivity Ratio for Assessment of Graves' Ophthalmopathy)

  • 이범우;성상규;박원;서관식;최덕주;김종순
    • 대한핵의학회지
    • /
    • 제22권1호
    • /
    • pp.27-31
    • /
    • 1988
  • In Graves' disease, changes in orbital tissue and structure are casued by inflammatory infiltation, which induces increase of capillary permeability and breakdown of blood-tissue barriers. Using the uptake of $^{99m}Tc-DTPA$ in inflammatory lesion, Eye/Brain radioactivity ratios in brain scintigraphy were evaluated in 15 normal controls and 40 Graves' patients. The results were as follows; 1) Eye/Brain radioactivity ratio was significantly higher in Graves' ophthalmopthy group than in control group (p < 0.005). 2) In Graves' ophthalmopathy, Eye/Brain radioactivity ratio was significantly higher in active (progressive) group than in inactive (non-progressive) group (p < 0.05). 3) There was no correlation between class of ATA classification of Graves' ophthalmopathy and Eye/Brain radioactivity ratio. 4) There was no correlation between Eye/Brain radioactivity ratio and serum activity of TBII. In conclusion, Eye/Brain radioactivity ratio using $^{99m}Tc-DTPA$ brain scintigraphy may be useful to determine the activity of Graves' ophthalmopathy and whether treatment of Graves' ophthalmopathy is necessary or not.

  • PDF

Transduced PEP-1-FK506BP ameliorates corneal injury in Botulinum toxin A-induced dry eye mouse model

  • Kim, Dae Won;Lee, Sung Ho;Ku, Sae Kwang;Cho, Soo Hyun;Cho, Sung-Woo;Yoon, Ga Hyeon;Hwang, Hyun Sook;Park, Jinseu;Eum, Won Sik;Kwon, Oh-Shin;Choi, Soo Young
    • BMB Reports
    • /
    • 제46권2호
    • /
    • pp.124-129
    • /
    • 2013
  • FK506 binding protein 12 (FK506BP) belongs to a family of immunophilins, and is involved in multiple biological processes. However, the function of FK506BP in corneal disease remains unclear. In this study, we examined the protective effects on dry eye disease in a Botulinum toxin A (BTX-A) induced mouse model, using a cell-permeable PEP-1-FK506BP protein. PEP-1-FK506BP efficiently transduced into human corneal epithelial cells in a time- and dose-dependent manner, and remained stable in the cells for 48 h. In addition, we demonstrated that topical application of PEP-1-FK506BP was transduced into mouse cornea and conjunctiva by immunohistochemistry. Furthermore, topical application of PEP-1-FK506BP to BTX-A-induced mouse model markedly inhibited expression levels of pro-inflammatory cytokines such as interleukin-$1{\beta}$ (IL-$1{\beta}$), tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$) and macrophage inhibitory factor (MIF) in corneal and conjunctival epithelium. These results suggest PEP-1-FK506BP as a potential therapeutic agent for dry eye diseases.

폐동맥류를 동반한 Behcet's Disease (Pulmonary Involvement in Behcet's Disease -A Case Report-)

  • 백효채
    • Journal of Chest Surgery
    • /
    • 제27권5호
    • /
    • pp.402-406
    • /
    • 1994
  • Behcet`s disease is a rare systemic disease of unknown cause and it is a progressive disorder with episodes of activity and remission. The major features are oral and genital ulceration and skin and eye lesions. Pulmonary involvement is rare, and we have experienced a 38 year old female patient who had undergone right lower lobe lobectomy due to extensive, rapidly growing pulmonary thromboemboli and pseudoaneurysm in pulmonary artery.

  • PDF

조절펄스광선조사가 눈물막 지질층 두께 및 안구건조증에 미치는 효과 (Effect of Intense Regulated Pulse Light on Thickness of Tear Film Lipid Layer and Dry Eye Syndrome)

  • 길태영;배지현;곽주영;현주;최진석;박규홍;정성근
    • 대한안과학회지
    • /
    • 제59권12호
    • /
    • pp.1103-1107
    • /
    • 2018
  • 목적: 건성안 환자에서 조절펄스광선조사가 미치는 임상 효과 및 눈물막지질층 두께 변화에 대하여 알아보고자 하였다. 대상과 방법: 건성안에 대한 주관적인 불편감을 호소하는 환자 중 마이봄샘기능부전 소견을 보이며, 눈물막파괴시간이 10초 이하인 25명을 대상으로 후향적 연구를 시행하였다. 모든 대상자에 대한 조절펄스광선조사는 시술 당일, 15일, 45일 총 3회에 걸쳐 시행되었으며, 시술 전후 눈물막파괴시간, 쉬르머검사, 안구표면염색점수, 안구표면질환지수(Ocular Surface Disease Index, OSDI) 및 눈물막 지질층의 두께를 측정하여 비교 분석하였다. 결과: 조절펄스광선조사 시술 후 눈물막파괴시간은 $3.7{\pm}1.2$초에서 $4.4{\pm}2.1$초로 증가되어 통계적으로 유의한 차이를 보였으며(p=0.03), 쉬르머 검사 및 안구표면염색 점수 결과는 통계적으로 유의한 차이를 보였다(p<0.01, p=0.01). OSDI는 $39.5{\pm}17.5$점에서 $30.4{\pm}18.7$점으로 통계적으로 유의한 향상을 보였다(p=0.01). 눈물막지질층 두께는 통계적으로 유의한 변화를 보이지 않았다(p=0.49). 결론: 조절펄스광선조사 시술은 눈물막파괴시간, 쉬르머검사, 안구표면염색점수 및 주관적인 건성안 증상을 개선시키는 효과적인 치료 방법이라 생각된다.

유발된 부동시의 교정에 따른 입체시 변화 (Changes of Stereoacuity with Correction in Induced Anisometropia)

  • 최진영;김재민;김현정
    • 한국안광학회지
    • /
    • 제13권4호
    • /
    • pp.121-126
    • /
    • 2008
  • 목적: 단안 과교정 및 저교정으로 유발된 부동시에서 정상적인 양안시기능을 유지하기 위해 필요한 최소한의 교정도수를 알아보고자 하였다. 방법: 안질환의 병력이 없는 20대의 성인 남녀를 대상으로 우위안 및 비우위안에 각각 과교정 및 저교정으로 부동시를 유발한 후 40 cm의 근거리에서 Titmus-fly stereotest 시표로 입체시를 측정하였다. 결과: 우위안 또는 비우위안에 구면렌즈를 부가하여 부동시를 유발한 경우, 가입도수의 증가에 따라 입체시는 감소하였으며 특히 (+)구면렌즈 가입에 따른 최초의 입체시 감소는 (-)구면렌즈 가입에 의한 입체시 감소보다 현저하였다. 또한 우위안에 유발시킨 부동시의 경우가 비우위안에 유발시킨 부동시보다 입체시 감소의 정도가 두드러졌다. 결론: 유발된 부동시에서 입체시는 비우위안을 완전교정하고 우위안에 (+)구면렌즈 도수를 증가시킬수록 두드러지게 감소하였다.

  • PDF