1. Topical ocular drug delivery: recent development and future challenges;Lee;J. Ocul. Pharmacol.,1986
2. Liposomes and nanoparticles as ocular drug delivery systems;Mezei,1992
3. The use of liposomes as drug carriers in ophthalmology;Niesman;Crit. Rev. Drug Carriers Syst.,1992
4. Application of liposomes in ocular drug delivery;Lee,1993