Effect of antiglaucoma agents on short-term intraocular pressure fluctuations after intravitreal bevacizumab injections

Author(s):  
Nasser shoeibi ◽  
Zina Ghosi ◽  
Habib Jafari ◽  
Arash Omidtabrizi
2019 ◽  
Vol 72 (7-8) ◽  
pp. 202-208
Author(s):  
Bojana Markic ◽  
Milka Mavija ◽  
Sasa Smoljanovic-Skocic ◽  
Sanela-Sanja Burgic

Introduction. It has been recognized that cataract surgery leads to a reduction of intraocular pressure, both in healthy and in glaucoma patients. This prospective interventional clinical study aimed to investigate the effects of cataract surgery on intraocular pressure and its short- and long-term fluctuations in medically controlled primary open-angle glaucoma patients and non-glaucomatous patients. Material and Methods. Two groups of 31 patients (31 eyes) were studied. The observed group included patients with glaucoma and cataract, and the control group included patients with senile cataract only. The intraocular pressure was measured three times daily pre- and at 1, 3 and 6 months postoperatively. Results. In both groups, a significant postoperative reduction in both mean and maximum intraocular pressure. Six months after surgery, in the observed group the average and maximum intraocular pressure reduction levels were -2.73 ? 1.91 mmHg and -3.16 ? 2.19 mmHg, and -2.26 ? 1.71 mmHg and -2.53 ? 1.70 mmHg in the control group. In the observed group, at 3 and 6 months after surgery, a significant reduction in short-term fluctuations was observed. Six months after surgery, short-term fluctuations decreased by -1.04 ? 2.20 mmHg compared to preoperative. Postoperatively, in the observed group, long-term fluctuations of average and maximum intraocular pressure were 2.69 ? 2.15 mmHg and 2.88 ? 2.22 mmHg, respectively, and in the controls they were 2.02 ? 1.28 mmHg and 2.42 ? 1.47 mmHg, showing no significant differences between groups. Conclusion. In patients with primary open-angle glaucoma, cataract surgery results in a statistically significant reduction in both average and maximum intraocular pressure as well as of short-term fluctuations.


2021 ◽  
Vol 4 (3) ◽  
pp. 336-337
Author(s):  
Andrew J. Tatham ◽  
Su L. Young ◽  
Etienne Chew ◽  
Lyndsay Brown

Author(s):  
Vincent Libertiaux ◽  
William P. Seigfreid ◽  
Massimo A. Fazio ◽  
Juan F. Reynaud ◽  
Claude F. Burgoyne ◽  
...  

The optic nerve head (ONH) is the site of insult in glaucoma, the second leading cause of blindness worldwide. Intraocular pressure (IOP) is commonly regarded as a major factor in the onset and progression of the disease1 and lowering IOP is the only clinical treatment that has been shown to retard the onset and progression of glaucoma2. However, many patients continue to progress even at an epidemiologically-determined normal level of IOP3. This suggests that in addition to the mean value of IOP, IOP fluctuations could be a factor in glaucomatous pathophysiology. The importance of low frequency fluctuations of clinically-measured mean IOP remains controversial. These studies all rely on snapshot measurements of mean IOP at each time point, and those measurements are taken at relatively infrequent intervals (hourly at the most frequent, but usually monthly or longer). Recently however, there has been some interest in ocular pulse amplitude, or the fluctuation in IOP associated with the cardiac cycle, which can be measured by Dynamic Contour Tonometry (DCT). DCT provides continuous measurement of IOP, but only for a period of tens of seconds in which a patient can tolerate corneal contact without blinking or eye movement, which ironically are two of the most common sources of large high frequency IOP fluctuations according to our telemetric data collected from monkeys4 and previous human studies. In a recent report, continuous IOP telemetry was used in three nonhuman primates to characterize IOP dynamics at multiple time scales for multiple 24-hour periods5.


2017 ◽  
Vol 26 (10) ◽  
pp. 923-928 ◽  
Author(s):  
Ronald M.P.C. de Crom ◽  
Carroll A.B. Webers ◽  
Marina A.W. van Kooten-Noordzij ◽  
Agnes C. Michiels ◽  
Jan S.A.G. Schouten ◽  
...  

1999 ◽  
Vol 30 (3) ◽  
pp. 212-215 ◽  
Author(s):  
Moshe Snir ◽  
Ruth Axer-Siegel ◽  
J Chalimi ◽  
B Shalev ◽  
Yuval Yassur

1997 ◽  
Vol 211 (6) ◽  
pp. 354-357
Author(s):  
Nurşen Yüksel ◽  
Orhan Elibol ◽  
Yusuf Çağlar ◽  
Turhan Alçelik

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