Abstract
Purpose
To assess changes in vision-related quality of life (VR-QoL) among patients with treatment-resistant neovascular age-related macular degeneration (nAMD) following intravitreal aflibercept treatment over 48 weeks.
Methods
We conducted a prospective study in which 49 patients with nAMD resistant to anti-vascular endothelial growth factor therapy were switched to intravitreal aflibercept. Patients were treated with three loading doses every 4 weeks followed by injections every 8 weeks, for a total of 48 weeks. Ophthalmic examinations performed at each visit included best-corrected visual acuity (BCVA) and central macular thickness (CMT) measurement. The National Eye Institute Visual Functioning Questionnaire 25 (NEI VFQ-25) was used to assess VR-QoL at baseline and weeks 24 and 48. Changes in NEI VFQ-25 composite and subscale scores were analyzed using paired t tests. The relationship between the change in VR-QoL and changes in BCVA and CMT, and the impact of the better-seeing eye (BSE, defined as the eye reading the greater number of letters at baseline) vs. the worse-seeing eye (WSE, the fellow eye to the BSE) were assessed.
Results
Mean NEI VFQ-25 composite scores improved significantly at weeks 24 and 48 compared to baseline (4.5 ± 9.2 and 4.4 ± 11.8, respectively, all p < 0.01). Among subscales, general vision and near and distance activities showed significant improvements at weeks 24 and 48 (all p < 0.05). Improvement in the NEI VFQ-25 composite score was significantly associated with increased BCVA at week 48 (β coefficient = 0.43, p = 0.029), but not with change in CMT (β coefficient = −0.007, p = 0.631). There was no association between VR-QoL changes and BSE or WSE.
Conclusion
Despite previous anti-VEGF treatment in this cohort, overall VR-QoL improved following aflibercept therapy over 48 weeks. This improvement was related to improved vision in treatment eyes regardless of whether they were the BSE or WSE.
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Funding
Financial support was provided in part by Bayer Corporation. The sponsor had no role in the design or conduct of this research. The authors have full control of all primary data, and we agree to allow Graefe’s Archive for Clinical and Experimental Ophthalmology to review our data upon request.
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Dr. Andrew Chang has acted as a consultant for Alcon, Bayer and Novartis. All other authors state that they have no proprietary interests or conflicts of interest related to this submission.
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All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
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Informed consent was obtained from all individual participants included in the study.
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This manuscript has not been published previously, and it is not simultaneously being considered for any other publication.
The trial was registered with the Australian and New Zealand Clinical Trials Registry (ACTRN 12612000666820).
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Zhu, M., Wijeyakumar, W., Syed, A.R. et al. Vision-related quality of life: 12-month aflibercept treatment in patients with treatment-resistant neovascular age-related macular degeneration. Graefes Arch Clin Exp Ophthalmol 255, 475–484 (2017). https://doi.org/10.1007/s00417-016-3477-9
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DOI: https://doi.org/10.1007/s00417-016-3477-9