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Purpose:   We evaluated the relationship between dosing frequency of intravitreal antivascular endothelial growth factor (anti-VEGF) agents and visual acuity (VA) outcomes over 2 years in eyes with macular edema (ME) secondary to central retinal vein occlusion (CRVO) in the US routine clinical practice setting.Methods:   This retrospective analysis assessed electronic medical records of eyes with ME secondary to CRVO that received their first anti-VEGF injection January 1, 2012, to May 31, 2016, and were followed for 1 year or more in the US-based Vestrum Health Treatment and Outcomes database. Eyes were divided into 2 injection frequency subcohorts (≤6 or ≥7 injections/year).Results:   Overall, 851 (34.6%) of 2458 eyes with ME secondary to CRVO received 6 or fewer injections, and 1607 (65.4%) received 7 or more injections through 1 year. The mean number of injections in patients receiving 6 or fewer injections and 7 or more injections was 4.7 and 8.8, respectively, and baseline mean VA was 35 and 37 letters, respectively. At year 1, mean letter gain from baseline was less in eyes receiving 6 or fewer injections vs in those receiving 7 or more injections (7.0 vs 12.2, P &lt; .001). Mean VA at year 2 was 50 letters in eyes receiving 6 or fewer injections (n = 50) and 55 letters in eyes receiving 7 or more injections (n = 157).Conclusions:   In routine clinical practice, more frequent dosing with anti-VEGF agents was associated with greater visual benefits in eyes with ME secondary to CRVO.

Antivascular Endothelial Growth Factor Dosing Frequency and Visual Outcomes in Macular Edema Following Central Retinal Vein Occlusion