Journal
RETINA-THE JOURNAL OF RETINAL AND VITREOUS DISEASES
Volume 36, Issue 5, Pages 881-888Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/IAE.0000000000000813
Keywords
angiogenesis; antiangiogenic drugs; intravitreal injection; retinal pigment epithelial detachment; vascular endothelial growth factor; visual impairment; neovascular age-related macular degeneration; ranibizumab; aflibercept; refractoriness
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Purpose: To investigate the time course of pigment epithelium detachment (PED) height and its change after anti-vascular endothelial growth factor switch from ranibizumab to aflibercept in neovascular age-related macular degeneration. Methods: This retrospective study included 60 eyes of 50 consecutive patients with neovascular age-related macular degeneration who showed refractory intraretinal or subretinal fluid (>= 9 months) despite monthly ranibizumab treatment and an associated PED (height >= 150 mu m). The treatment was switched to aflibercept, and patients were followed-up for at least 9 months. Data on the height and type of PED, exudative fluid, and best-corrected visual acuity were collected at four different time points (two before and two after the drug switch). Results: The maximal PED height was significantly decreased over time, both under ranibizumab and aflibercept treatment. However, the reduction was significantly greater during the 3 months after the switch to aflibercept, due to two outliers. Visual acuity remained stable. Complete resolution of intraretinal or subretinal fluid was observed in 9 cases (15%) at 3 months after switch, allowing for treatment interval extension. Conclusion: Maximal PED height continuously decreased over time. Switching the intravitreal anti-vascular endothelial growth factor medication from ranibizumab to aflibercept had a significantly stronger short-term effect on PED height reduction, without changes in visual acuity.
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