By the time they're 80 years old, more than half of Americans will have a cataract or have had cataract surgery, according to a news release about the study.

从此项研究的新闻发布会获悉，超过半数的美国人到80岁时都会患白内障或做白内障手术。

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In single unit pellet system, this study attempts to develop a timely controlled release dosage form with minimization of transit time and pH effects of gastrointestinal tract.

在单室圆粒系统部分，本研究试图开发具有降低药物通过胃肠道时间与酸碱值影响性之及时控释剂型。

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