Effect of latanoprost 0.005% and brimonidine tartrate 0.2% on pulsatile ocular blood flow in normal tension glaucoma

Catherine Jui ling Liu, Y. C. Ko, C. Y. Cheng, J. C. Chou, Wen-Ming Hsu, J. H. Liu

研究成果: 雜誌貢獻文章

34 引文 斯高帕斯(Scopus)

摘要

Aim: To determine the effect of brimonidine tartrate 0.2% and latanoprost 0.005% on pulsatile ocular blood flow (POBF) in patients with normal tension glaucoma (NTG). Method: NTG patients with progressive optic neuropathy, new disc haemorrhage, or field defects that threatened fixation were enrolled into a randomised, investigator masked, crossover study. Group I patients received 4 weeks each of latanoprost, lubricant, and brimonidine, while group II patients received 4 weeks each of brimonidine, lubricant, and latanoprost. Diurnal POBF was measured at baseline and after each 4 week treatment. Results: 25 patients completed the study and had reliable POBF measurement at each visit. There was no significant diurnal change in baseline POBF (p = 0.768). Latanoprost increased POBF by 213 (SD 257) μl/min (22.8%, p <0.001) while brimonidine increased it by 97 (183) μl/min (10.4%, p= 0.014). POBF increased at 8 am (p= 0.004), 12 noon (p = 0.002), and 4 pm (p <0.001) with latanoprost, while it increased only at 8 am (p = 0.016) with brimonidine. After adjusting for the factor of IOP, neither latanoprost nor brimonidine increased POBF significantly. Conclusions: Latanoprost increases the mean POBF that is related to its IOP lowering effect. The increase in POBF noted after brimonidine is within the range of long term variation and may not be attributable to the drug effect.

原文英語
頁(從 - 到)1236-1239
頁數4
期刊British Journal of Ophthalmology
86
發行號11
DOIs
出版狀態已發佈 - 十一月 1 2002
對外發佈Yes

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems
  • Cellular and Molecular Neuroscience

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