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  • Title: Sustained increased intraocular pressure related to intravitreal antivascular endothelial growth factor therapy for neovascular age-related macular degeneration.
    Author: Tseng JJ, Vance SK, Della Torre KE, Mendonca LS, Cooney MJ, Klancnik JM, Sorenson JA, Freund KB.
    Journal: J Glaucoma; 2012; 21(4):241-7. PubMed ID: 21423038.
    Abstract:
    PURPOSE: To describe a series of previously normotensive eyes experiencing sustained elevated intraocular pressure (IOP) associated with long-term intravitreal antivascular endothelial growth factor (VEGF) therapy for neovascular age-related macular degeneration (AMD). PATIENTS AND METHODS: Clinical data were reviewed for 25 eyes of 23 patients with neovascular AMD who had increased IOP while receiving interval doses of intravitreal ranibizumab and/or bevacizumab. All eyes had tolerated multiple anti-VEGF injections in the past without IOP elevations. RESULTS: After a mean of 20.0 anti-VEGF injections (range, 8-40 injections), the mean IOP was 29.8 mm Hg (range, 22-58 mm Hg), compared with a baseline of 16.9 mm Hg (range, 14-21 mm Hg). The mean highest IOP while receiving intravitreal anti-VEGF therapy was 35.8 mm Hg (range, 23-58 mm Hg). Overall, 23 of 25 cases required IOP management. In the remaining 2 cases, anti-VEGF dosing was switched from regular interval dosing to an optical coherence tomography-guided variable regimen, with subsequent improvement in IOP without antiglaucoma treatment. CONCLUSIONS: Serial injections of anti-VEGF agents may lead to persistent IOP elevations that require glaucoma therapy. The clinician should recognize this phenomenon, as it can occur even if the patient has tolerated multiple prior injections without IOP elevation. Further exploration of the relationship between anti-VEGF therapy and IOP is needed.
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