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정진권,이성진,JK Chung,Sung Jin Lee 대한안과학회 2006 대한안과학회지 Vol.47 No.1
Purpose: The use of local anesthesia during vitreoretinal surgery has increased with improvements in technique, instrumentation, and surgical time. We report our experience of a vitrectomy under the sub-Tenon`s anesthesia. Methods: In this prospective study, vitreoretinal pathology, intraoperative procedure, operation time, and complication were investigated between February and December 2004. To assess the efficacy of the anesthesia, patients were questioned about any pain or discomfort felt during or subsequent to their operation, and scores were assigned using a numerical rating scale (NRS). Result: Thirty-seven consecutive patients (37 eyes) were enrolled in this study, including fourteen patients with proliferative diabetic retinopathy, six patients with macular hole, five patients with endophthalmitis, four patients with retinal vein occlusion, four patients with aneurysm rupture, and four patients with dislocated crystalline lens. Procedures accompanying vitrectomy were membranectomy or internal limiting membrane peeling in 30 eyes, endolaser photocoagulation in 28 eyes, phacoemulsification with posterior chamber lens implantation in 16 eyes, air-fluid exchange in 10 eyes, and scleral fixation or intraocular lens in 8 eyes. The mean surgical time was 64.6±22.6 minutes, and pain during scleral depression was significantly greater than the others (NRS:3.99±1.12, p<0.01). There were no complications during the operations, however, postoperative increased intraocular pressure was noted in four cases. Conclusion: Sub-Tenon`s anesthesia is safe and effective for use in vitrectomy procedures.
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망막정맥폐쇄의 위험인자로서 단백질 C와 단백질 S의 역할
이경섭,정진권,이성진,Kyoung-Seob Lee,M,D,JK Chung,M,D,Sung-Jin Lee,M,D 대한안과학회 2005 대한안과학회지 Vol.46 No.11
Purpose: The authors evaluated the possibility of protein C and protein S as risk factors for retinal vein occlusion (RVO). Methods: We evaluated the medical histories and performed laboratory tests, including protein C and protein S, in patients who were diagnosed with RVO by fundus examination and fluorescein angiography. The same data were obtained from a healthy control group. We analyzed mean activity and the ratio of patients with decreased levels of protein C or protein S. Results: Forty-seven patients with RVO in this study consisted of 14 with central retinal vein occlusion (CRVO) and 33 with branch retinal vein occlusion (BRVO). Sixteen normal subjects were also enrolled in this study as controls. There are no cases that presented decreased protein C activity. However, there was a statistically significant difference in the number of cases with protein S deficiency between the patients and the control group (p<0.05). Conclusions: Deficiency of anticoagulant proteins, especially protein S, may be a risk factor of retinal vein occlusion. Examination of the coagulation system may be useful in the systemic evaluation of RVO patients.
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고도근시 환자에서 부분결합간섭계와 초음파를 이용한 생체측정
정진권,최철명,유용성,이성진.JK Chung. M.D.. Chul Myong Choe. M.D.. Yong Sung You. M.D.. Sung Jin Lee. M.D. 대한안과학회 2006 대한안과학회지 Vol.47 No.3
Purpose: To compare the refractive outcome of clear lens extraction employing partial coherence interferometry data with that of applanation ultrasonography. Methods: Thirty eyes of 17 patients with axial length greater than 26 mm who underwent clear lens extraction were enrolled in this study. IOL power was measured using IOLMaster and conventional ultrasonography. Differences between predicted refraction and actual refraction were compared and analyzed according to the biometry method and IOL power calculation formulas. Results: Axial length according to IOLMaster measurement (29.23±1.40 mm) was significantly longer than that measured by ultrasonography (28.68±1.32 mm) (p=0.000). The difference between actual and predicted refraction was 0.75±0.40 diopter by SRK/T with IOLMaster and 0.44±0.52 diopter by SRK/T with A-scan. The standard errors of the two measurement methods were 0.08 and 0.10, respectively. Eighty-five percent and one hundred percent of patients were within 1 diopter, as measured by SRK/T with IOLMaster and with A-scan, respectively. Conclusions: The use of the IOLMaster with the SRK/T formula may be an accurate method of IOL calculation in cases of high myopes, if surgeon factors are corrected for.
KCI
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