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ORIGINAL ARTICLE
Year : 2021  |  Volume : 33  |  Issue : 1  |  Page : 12-16

The effect of acute rises in intraocular pressure after intravitreal bevacizumab injection on the peripapillary retinal nerve fiber layer thickness and the role of anterior chamber paracentesis


Department of Ophthalmology, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran, Tehran

Correspondence Address:
Esmaeil Asadi Khameneh
Department of Ophthalmology, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran
Tehran
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/JOCO.JOCO_214_20

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Purpose: To evaluate acute changes in intraocular pressure (IOP) and their short-term effects on the peripapillary retinal nerve fiber layer (RNFL) thickness after intravitreal bevacizumab (IVB) injection. Methods: Fifty-eight eyes of 37 patients with treatment-naïve diabetic macular edema or exudative age-related macular degeneration were included in the study. Patients were divided into two groups, and the participants of each group received 3 monthly injections of IVB. IOP was measured right before the injection, immediately after the injection, and 5 min and 20 min after each injection. Peripapillary, RNFL thickness was measured before the injection and 1 month after the third injection. In the second group, anterior chamber (AC) paracentesis was performed before IVB injection. Results: IOP values after injection in all sessions were significantly higher in the first group (P < 0.001). The peripapillary RNFL thickness changes 1 month after the third injection was not statistically significantly different in each group (P = 0.816 and 0.773 for the first and second groups, respectively). Conclusion: AC paracentesis is an effective modality to reduce the acute rise in IOP. The effect of acute IOP elevation on the peripapillary RNFL thickness was not statistically significant.


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