Ptosis, Eyelid — Brimonidine for Intraoperative Hemostasis
Citation(s)
Hong S, Kim CY, Seong GJ, Han SH Effect of prophylactic brimonidine instillation on bleeding during strabismus surgery in adults. Am J Ophthalmol. 2007 Sep;144(3):469-70. doi: 10.1016/j.ajo.2007.04.038.
Kim CS, Nam KY, Kim JY Effect of prophylactic topical brimonidine (0.15%) administration on the development of subconjunctival hemorrhage after intravitreal injection. Retina. 2011 Feb;31(2):389-92. doi: 10.1097/IAE.0b013e3181eef28e.
Kim DH, Yang HK, Han SB, Hwang JM Effect of Topical Brimonidine 0.15% on Conjunctival Injection after Strabismus Surgery in Children. J Ophthalmol. 2021 May 4;2021:5574194. doi: 10.1155/2021/5574194. eCollection 2021.
Ucar F, Cetinkaya S The Results of Preoperative Topical Brimonidine Usage in Pterygium Surgery. J Ocul Pharmacol Ther. 2020 May;36(4):234-237. doi: 10.1089/jop.2019.0085. Epub 2020 Feb 27.
Ucar F, Cetinkaya S The Results of Preoperative Use of Topical Brimonidine in Strabismus Surgery. J Ocul Pharmacol Ther. 2021 May;37(4):230-235. doi: 10.1089/jop.2020.0144. Epub 2021 Mar 8.
Efficacy of Intraoperative Brimonidine for Hemostasis During Eyelid Surgery
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
