• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.12
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• pp.3919-3924
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• 2009

To evaluate clinical results of silicone oil injection for retinal detachment. The 45 eyes of 44 patients underwent vitrectomy and silicone oil injection from 1999 to 2002. 1.There were no history of previous retinal surgery and ocular trauma. In 24 of the 45 eyes(53%) visual acuity increased and stabilized in 18 of the 45 eyes(40%). 2. 1 of 16 eyes(6.3%) had recurred retinal detachment after silicone oil removal. 3. Final retinal reattachment was achieved in 44 eyes(97%). Postoperative complications were cataract(16 eyes), glaucoma(10 eyes), emulsification of silicone oil(5 eyes), keratopathy(2 eyes) and recurrent retinal detachment(1 eye). These results show that silicone oil injection for primary retinal detachment yields a high rate of anatomic success and the good visual outcome

• Safety and Health at Work
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• v.3 no.1
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• pp.52-57
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• 2012

Objectives: Lifting heavy weights involves the Valsalva manoeuvre, which leads to intraocular pressure spikes. We used data from a case-control study to further investigate the hypothesis that occupational lifting is a risk factor for retinal detachment. Methods: The study population included 48 cases (patients operated for retinal detachment) and 84 controls (outpatients attending an eye clinic). The odds ratios (OR) of idiopathic retinal detachment were estimated with a logistic regression model (adjusted for age, sex and body mass index). Three indexes were used to examine exposure to lifting; 1) maximum load lifted, 2) average weekly lifting, 3) lifelong cumulative lifting. Results: For all indexes, the most exposed subjects showed an increased risk of retinal detachment compared with the unexposed (index 1: OR 3.57, 95% confidence interval [CI] 1.21-10.48; index 2: OR 3.24, 95% CI 1.32-7.97; index 3: OR 2.23, 95% CI 1.27-8.74) and dose-response relationships were apparent. Conclusion: These results reinforce the hypothesis that heavy occupational lifting may be a relevant risk factor for retinal detachment.

• Journal of The Korean Ophthalmological Society
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• v.59 no.12
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• pp.1160-1165
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• 2018

Purpose: To evaluate the availability of ultra-wide field fundus photography based on eye steering technique to diagnose retinal breaks in patients with symptomatic posterior vitreous detachment (PVD). Methods: The medical records of patients with symptomatic PVD were reviewed. Retinal breaks were independently identified using four eye steering capture images of ultra-wide field fundus photographs. The sensitivity and specificity of eye steering capture imaging for diagnosing retinal breaks were calculated. Results: A total of 94 eyes of 94 patients were included. Using fundus examination after pupil dilatation, retinal breaks were diagnosed in 42 (45%) eyes. The sensitivity of the eye steering capture imaging was 98% (95% confidence interval [CI]: 88-100%), and the specificity was 98% (95% CI: 90-100%). Of the 58 retinal tears, 28 (97%) involving the superior quadrant, 10 (100%) involving the inferior quadrant, 6 (100%) involving the nasal quadrant, and 13 (100%) involving the temporal quadrant were identified using eye steering capture images. Conclusions: Ultra-wide field fundus photography based on eye steering technique was useful for diagnosing retinal breaks in patients with symptomatic PVD. However, eye steering photography could not adequately replace the fundus examination after pupil dilatation in all cases.

• Journal of Yeungnam Medical Science
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• v.34 no.1
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• pp.111-114
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• 2017

Central serous chorioretinopathy may induce poor eyesight and serous retinal detachment. However, its exact cause has not been well established thus far. It can be associated with systemic high-dose corticosteroid treatment mainly for young and middle-aged men and may spontaneously regress or recur after withdrawal from corticosteroid. After corticosteroid administration for Behcet's disease, it is necessary to identify any ocular symptoms. Behcet's disease can lead to the development of ocular complications, such as uveitis, hypopyon, retinal vasculitis, optic neuritis, angiogenesis, secondary cataract, and glaucoma. It is possible to diagnose any of these complications via optical coherence tomography and digital indocyanine green angiography. It is easy to neglect an ocular symptom that may appear after a low-dose corticosteroid treatment as an ocular complication in patients with Behcet's disease. Thus, we report on a case concerning high-dose corticosteroid treatment with a literature review.

• The Korean Journal of Pain
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• v.8 no.2
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• pp.324-327
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• 1995

Central serous chorioretinopathy is a relatively benign condition of young to middle-aged men, characterized by serous detachment of central retina as a consequence of focal leakage of fluid from the choriocapillaris through a defect in the retinal pigment epithelium. Approximately 80% of central serous chorioretinopathy undergo spontaneous resolution within 6 months. However 20 to 30% of patients with central serous chorioretinopathy have one or more recurrences and undergo chronic courses. In these cases laser photocoagulation is used to burn the leakage site directly, but there is no evidence that it reduces the chance of permanent loss of visual function and recurrence. We have administered stellate ganglion blocks (SGB) on a 43 year old male patient with central serous chorioretinopathy with multiple recurrences and experienced good results. We therefore recommend SGB as an effective treatment for central serous chorioretinopathy in conjunction with other ophthalmological treatments.

• Proceedings of the KAIS Fall Conference
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• 2009.05a
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• pp.612-615
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• 2009

본 연구는 망막수술의 기왕력이 없고 고식적인 수술방법으로는 예후가 나쁠 것으로 예상되는 망막박리에서 유리체절제술과 일차적으로 실리콘 기름을 사용했을 경우의 초기적용의 유용성 및 합병증을 알아보고자 망막박리로 유리체절제술과 실리콘기름주입술을 시행하고 6개월 이상 추적관찰이 가능한 환자 44명을 대상으로 연구하였다. 결과는 다음과 같다. 1. 유리체절제술 후 시력이 두 줄 이상 호전된 경우는 45안 중 24안(53%)이었으며, 18안(40%)에서는 시력의 변화가 없었다. 2. 실리콘기름주입술 후 16안에서 평균 6.9개월에 실리콘기름을 제거하였으며 그 중 1안에서 망막박리가 재발되어 실리콘기름 재주입술을 시행하여 망막재유착을 이루었다. 3. 재수술을 포함하여 해부학적인 재유착은 45안 중 44안(97%)에서 이루었다. 4. 실리콘기름주입 후 발생한 합병증은 백내장(16안), 녹내장(10안), 실리콘기름의 유화(5안), 각막병증(2안), 재발성 망막박리 (1안)이었다.

• Journal of Yeungnam Medical Science
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• v.24 no.2
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• pp.243-251
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• 2007

Purpose : This study was conducted to assess the surgical outcomes of limbal lensectomy with or without anterior vitrectomy for the management of lens subluxation. Materials and Methods : The medical records of 20 consecutive patients (33 eyes) with lens subluxation who had undergone limbal lensectomy with or without anterior vitrectomy from February 1999 to January 2004 were retrospectively reviewed. Results : All the patients, except one high axial myopic patient, were implanted with scleral sutured posterior chamber intraocular lens. We evaluated the preoperative, postoperative visual acuity and postoperative complications and compared the results in group I (limbal lensectomy with anterior vitrectomy, 27 eyes) to those in group II (limbal lensectomy without anterior vitrectomy, 6 eyes). The preoperative best-corrected visual acuity was 0.21 and postoperative best-corrected visual acuity was improved by 2 lines or more in all 27 eyes in group I, and in 5 eyes in group II (p>0.05). The most frequent postoperative complication was intraocular lens dislocation in four eyes (14.8%) in group I alone. No retinal detachment occurred in either group, even in patients with high myopia. Conclusion : Limbal lensectomy without anterior vitrectomy improved visual acuity similarly to limbal lensectomy with anterior vitrectomy without significant increase of postoperative complications. This results of this study suggest that anterior vitrectomy is not necessarily required for the management of lens subluxation.

• Clinical and Experimental Pediatrics
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• v.52 no.6
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• pp.674-679
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• 2009

Purpose : The authors aimed to analyze the long-term effects of treatments, especially external beam radiotherapy (EBRT), in bilateral retinoblastoma patients. Methods : This retrospective study analyzed the medical records of 22 bilateral retinoblastoma patients who were registered between October, 1987 and October, 1998 and followed-up for more than 10 years. They were treated by enucleation, EBRT, and systemic chemotherapy. Age at diagnosis, sex, delay prior to treatment, Reese-Ellsworth (RE) classification, and the local treatment modalities were analyzed in relation to recurrence-free survival (RFS) and complications. Results : Median age at diagnosis was 7.0 months (range 1.7-31.6 months). Leukocoria was the most common presenting feature. Two patients had a familial history. The RE classifications of the 44 eyes were group II in 4, III in 14, IV in 4, and V in 22. At the end of a median follow-up period of 141 months (range 55-218 months), 20 patients were alive. The 10-year ocular survival rate of the 44 eyes was $56.8{\pm}7.5%$. The 10-year RFS and ocular survival rate of the 29 eyes treated by combined EBRT and chemotherapy were 75.9% and 86.2%, respectively. Treatment delay (>3 months) was found to be related to higher risk of recurrence. Complications after EBRT were cataract, retinal detachment, phthisis bulbi, and facial asymmetry. No patient developed a second malignancy during the follow-up period. Conclusion : Early detection and prompt treatment can increase ocular survival rates. In addition, careful attention should be paid to possible long-term sequelae in these patients.

• The Korean Journal of Nuclear Medicine
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• v.33 no.5
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• pp.439-451
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• 1999

Purpose : It is important to differentiate malignant from benign lesions of intraocular masses in choosing therapeutic plan. Biopsy of intraocular tumor is not recommended due to the risk of visual damage. We evaluated the usefulness of F-18-FDG PET imaging in diagnosing intraocular neoplasms. Materials and Methods: F-18-FDG PET scan was performed in 13 patients (15 lesions) suspected to have malignant intraocular tumors. There were 3 benign lesions (retinal detachment, choroidal effusion and hemorrhage) and 10 patients with 12 malignant lesions (3 melanomas, 7 retinoblastomas and 2 metastatic cancers). Regional eye images ($256{\times}256$ and $128{\times}128$ matrices) were obtained with or without attenuation correction. Whole body scan was also performed in eight patients (3 benign and 6 malignant lesions). Results: All malignant lesions were visualized while all benign lesions were not visualized. The mean peak standardized uptake value (SUV) of malignant lesions was $2.64{\pm}0.57g/ml$. There was no correlations between peak SUV and tumor volume. Two large malignant lesions ($> 1000 mm^3$) showed hot uptake on whole body scan. But two medium-sized lesions ($100-1000mm^3$) looked faint and two small ($<100mm^3$) lesions were not visualized. The images reconstructed with $256{\times}256$ matrix showed lesions more clearly than those with $128{\times}128$ matrix Conclusion: F-18-FDG PET scan is highly sensitivity in detecting malignant intraocular tumor For the evaluation of small-sized intraocular lesions, whole body scan is not appropriate because of low sensitivity. A regional scan with sufficient acquisition time is recommended for that purpose. Image reconstruction in matrix size of $256{\times}256$ produced clearer images than the ones in $128{\times}128$, but it does not affect the diagnostic sensitivity.