cause degeneration

The cause and result of circle point curve degeneration were discussed. With the help of degenerated circle point curve and Euler Savary equation, a method to synthesize four bar linkage, whose coupler curve has four infinite points contact with its tangent, was presented.

分析了曲率驻点曲线蜕化的原因和结果，利用蜕化了的曲率驻点曲线和欧拉-萨法利方程得到了综合四杆直线机构的公式。

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The time of RRD and the degree of retinal degeneration were the main cause impeding the recovery of the retinal function after reduction.

视网膜脱离的时间和视网膜变性性改变的程度是影响视网膜解剖复位后功能恢复的主要原因，提示早期诊断和早期治疗对提高视网膜脱离患者视网膜解剖复位后的功能恢复是十分重要的。

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Age-related macular degeneration is the leading cause of visual impairment and blindness among the old people.

老年性黄斑变性是老年人最主要的视力损伤和致盲原因之一.

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Age related macular degeneration ( AMD) is the leading cause of visual impairment in people over 50 years old. There are two forms of macular degeneration: the atrophic ( dry) type and the exudative ( wet) type.

年龄相关性黄斑变性（aged-related macular degeneration，AMD）是造成50岁以上人群视力障碍的主要原因。

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Professor Coffey is planning a clinical trial of a stem cell treatment for macular degeneration, an important cause of blindness, in partnership with Pfizer, the giant US drug company.

科菲教授计划与美国医药公司巨头辉瑞公司（pfizer）合作，对黄斑退化症进行干细胞治疗的临床试验。

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