| 摘要 |
The present invention relates to a scleral plug made of lactic acid copolymer; a scleral plug containing a drug that is designed to gradually release the drug into a vitreous body; and a scleral plug that is used to treat or prevent diseases of the retina or to promote recovery from damage after vitreous surgery taking advantage of its sustained release action for drug delivery. The scleral plug of the present invention plugs the incision after vitreous surgery and is not needed to be removed. The scleral plug enables a drug to be administered safely and effectively in intraocular tissues, where drugs barely distribute, by releasing a drug gradually for a long period. Moreover, it is possible to find other conventional methods for administering a drug, e.g., a method involving the use of a scleral incision which is formed during vitreous surgery.
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