TT viral infection through blood transfusion: retrospective investigation on patients in a prospective study of post-transfusion hepatitis

中國醫藥大學機構典藏 China Medical University Repository, Taiwan > 醫學院 > 醫學系 > 期刊論文 > Item 310903500/30127

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题名:	TT viral infection through blood transfusion: retrospective investigation on patients in a prospective study of post-transfusion hepatitis
作者:	Yang, SS;Wu, CH;Chen, TH;Huang, YY;Huang, CS
贡献者:	醫學院醫學系;Cathay Gen Hosp, Dept Gastroenterol, Div Gastroenterol, Taipei 10650, Taiwan;Cathay Gen Hosp, Dept Lab Med, Taipei 10650, Taiwan;China Med Coll, Fac Med, Taichung, Taiwan
日期:	2000
上传时间:	2010-09-24 14:49:44 (UTC+8)
出版者:	W J G PRESS
摘要:	Purpose: To evaluate the ablation centration after active eye-tracker-assisted photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK) and to investigate the effect of surgery, patient, and surgeon on the centration. Setting: Department of Ophthalmology, China Medical College Hospital, Taichung, Taiwan, Republic of China. Methods: This retrospective study comprised 177 eyes of 101 patients: 16 eyes had PRK and 161, LASIK. All laser treatments were performed with the aid of an eye tracker. The amount of decentration was analyzed by corneal topography. The factors influencing centration were divided into surgery related (PRK/LASIK), patient related (low/high myopia and effect of learning), and surgeon related (learning curve). Results: The mean decentration was 0.33 mm in PRK eyes and 0.35 mm in LASIK eyes. For the surgery-related factor, there was no significant difference between the PRK and LASIK eyes. For the patient-related factors, centration was better in the second eye (effect of learning) and decentration was more severe in eyes with high myopia (low/high myopia). for the surgeon-related factor, there was no significant difference between eyes that had the first 50 LASIK procedures and those that had the last 50 procedures. Conclusions: An eye tracker, which makes the laser beam follow the eye's movements, helps to avoid severe decentration. This study showed, however, that an active eye-tracking system alone cannot ensure good centration. patient cooperation and fixation are important. J Cataract Refract Surg 2000; 26:28-34 (C) 2000 ASCRS and ESCRS.
關聯:	WORLD JOURNAL OF GASTROENTEROLOGY 6(1):70-73
显示于类别:	[醫學系] 期刊論文

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