期刊
EXPERT OPINION ON DRUG DELIVERY
卷 16, 期 12, 页码 1381-1391出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/17425247.2019.1690451
关键词
Corneal ulcer; cyclodextrins; gel formulation; colloidal system; nanoformulations; drug-eluting contact lens; microneedle patch; ocular inserts
Introduction: Corneal ulceration is one of the leading causes of blindness especially in low- and midincome countries (LMICs). Surgical treatment of microbial keratitis is associated with multiple challenges that include non-availability of donor corneal tissues, lack of trained corneal surgeons, and poor compliance to follow up care. As a result, the surgery fails in 70-90% cases. Therefore, improving outcome of medical treatment and thereby avoiding the need for the surgery is an unmet need in the care of corneal ulcer cases. Areas covered: In this review article, the authors have tried to compile information on the novel drugdelivery systems that have potential to enhance success of medical management. We have discussed the following systems: cyclodextrins, gel formulations, colloidal system, nanoformulations, drug-eluting contact lens, microneedle patch, and ocular inserts. Expert opinion: The goals of corneal ulcer treatment are as follows: rapid eradication of causative microorganisms, control of damage from induced inflammation and microbial toxins, and facilitation of repair. The ocular surface anatomy poses several challenges for drug delivery using standard topical therapy. The novel drug-delivery systems mentioned above aim to enhanced tear solubility; superior stability; improved bio-availability; reduced toxicity; besides facilitating targeted drug delivery and convenience of administration.
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