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find Author "吴德正" 32 results
  • 正确使用视觉电生理技术提高其临床应用价值

    Release date:2016-09-02 06:03 Export PDF Favorites Scan
  • Comparison between four- and single-channel recording of normal multifocal visual evoked potential

    objective To observe the differences between four- and single-channel recording of normal multifocal visual evoked potential (mfVEP). Methods mfVEP of 35 health individuals (70 eyes) were detected by both four- and single-channel recording with VERIS apparatus. The root mean square (RMS) value of reactive amplitude was obtained from the results of the two kinds of recording. Each stimulated patch was analyzed to compare the variational degree of each patch between the two recording methods. Responase sasymmetry coefficient (RAC) was introduced to evaluate the symmetry property between the two eyes in an individual. Results Compared with the single-channel recording,the responses of the stimulated patches of the four- channel recording were increased statistically, with most of the patches below the horizontal meridian and some of patches in the upper field, and there was distinct symmetry property between the two eyes in the same individual recorded by four-channel recording. Conclusion The four-channel recording is better than the single one and could be clinically applied and popularized.(Chin J Ocul Fundus Dis,2004,20:156-159)

    Release date:2016-09-02 05:58 Export PDF Favorites Scan
  • 浅谈吲哚青绿血管造影的临床释义

    Release date:2016-09-02 06:01 Export PDF Favorites Scan
  • 视盘黑色素细胞瘤伴盘周巨大脉络膜痣二例

    Release date:2016-09-02 06:05 Export PDF Favorites Scan
  • 多焦视网膜电图技术及临床应用

    多焦视网膜电图是视觉电生理学的一项重要新进展,它应用先进的数字信号处理和电子计算机技术,可在较短时间内同时测量几十度视野范围内几十到几百个区域的局部视网膜电图,并计算各局部反应的一阶反应和二阶反应,根据各反应的参数分 别了解视网膜内外层对应于视野各部位的功能,目前该技术已在临床上得到应用。 (中华眼底病杂志,2000,16:1-70)

    Release date:2016-09-02 06:05 Export PDF Favorites Scan
  • Distribution properties of multifocal pattern visual evoked potential across visual field

    Objective To investigate the distribution properties of multifocal pattern visual evoked potential across visual field. Methods Multifocal pattern visual evoked potentials(VEP) of 14 normals were measured with VERIS ScienceTM4.0The visual stimuli were dart board 60 with patterns which consisted of 60 patches arranged in dart board configuration spanning a 26deg; vis ual field. The temporal modulation of each patch was controlled by a special type of pseudorandom sequence called binary m-sequence. The electrodes were placed at equal distances 2 cm inferior to and 2 cm superior to and straddling the inion. The first slice of the second order kernel for each stimulus patch was analysed. The 60 patches were grouped into several sectors. The summed responses of these sectors were analysed and compared. Results Compared with that of the lower hemifield , the polarity of the multifocal VEP of the upper hemifield was reverse, and the latency delayed, the response density decreased. With the eccentricity increased, the response density of the multifocal VEP decreased. The properties of the multifocal VEP of the horizontal sectors were different from that of the vertical sectors. Conclusion VEP of many locations within visual field could be recorded simultaneously in a short time with the method of mutifocal VEP. The multifocal VEP showed different properties in different sectors within visual field.  (Chin J Ocul Fundus Dis, 2001,17:280-283)

    Release date:2016-09-02 06:03 Export PDF Favorites Scan
  • 一氧化氮与眼底病相关研究的新进展

    许多研究表明一氧化氮(NO)同眼底循环血管性眼病、皮质盲、葡萄膜炎、青光眼等的发病有密切联系,并对这些眼病的发病机制提出了新的认识,也为它们的治疗提供了新的思路。 (中华眼底病杂志,1996,12:59-61)

    Release date:2016-09-02 06:11 Export PDF Favorites Scan
  • 视网膜色素上皮移植术

    视网膜色素上皮(RPE)移植是目前世界上视网膜研究的热点之一。实验证明,RPE移植不仅能拯救变性的视网膜光感受器,而且可能有预防视网膜新生血管和进行基因治疗等多方面的作用,该项技术现已初步用于临床。现对RPE移植的供林材料选择、手术技术、手术效果、并发症、可能的作用和临床试验进行综述。

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  • 单侧原发性视网膜色素变性伴对侧弱视眼一例

    Release date:2016-09-02 05:51 Export PDF Favorites Scan
  • 先天性黑目蒙〖HT3〗伴黄斑缺损一例

    Release date:2016-09-02 05:52 Export PDF Favorites Scan
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