Background/aimsReal-life anti-vascular endothelial growth factor (VEGF) therapy use in patients with wet age-related macular degeneration (wAMD) was assessed in a retrospective, observational study in Canada, France, Germany, Ireland, Italy, the Netherlands, UK and Venezuela.MethodsMedical records of patients with wAMD, who started ranibizumab treatment between 1 January 2009 and 31 August 2009, were evaluated. Data were collected until the end of treatment and/or monitoring or until 31 August 2011.Results2227 patients who received ≥1 anti-VEGF injection with a baseline visual acuity assessment and ≥1 postbaseline visual acuity assessment for the treated eye were evaluated. Visual acuity improved until about day 120; thereafter, visual acuity gains were not maintained. Mean change in visual acuity score from baseline to years 1 and 2 was +2.4 and +0.6 letters, respectively. Patients received a mean of 5.0 and 2.2 injections in the first and second year, respectively. There were substantial differences in visual outcomes and injection frequency between countries. More frequent visits and injections were associated with greater improvements in visual acuity.ConclusionsIn clinical practice, fewer injections are administered than in clinical trials. Anti-VEGF treatment resulted in an initial improvement in visual acuity; however, this was not maintained over time.Trial registration numberNCT01447043.

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eudract.ema.europa.eu Identifier: 2007-000847-89

Decades of research into the pathophysiology and management of diabetic retinopathy have revolutionized our understanding of the disease process. Diabetic retinopathy is now more accurately defined as a neurovascular rather than a microvascular disease as neurodegenerative disease precedes and coexists with microvascular changes. However, the complexities of the pathways involved in different stages of disease severity continue to remain a challenging issue for drug discovery. Currently, laser photocoagulation is the mainstay of treatment for proliferative diabetic retinopathy, but is gradually being superseded for diabetic macular oedema. However, it is destructive and at best results in a gradual but modest improvement in vision in the long term. So, diabetic retinopathy remains the most prevalent cause of visual impairment in the working-age population despite established screening programmes, early diagnosis and treatment of the condition. The recent discovery of inhibitors of vascular endothelial growth factor is revolutionizing the management of diabetic retinopathy, particularly diabetic macular oedema. However, not all patients respond to anti-vascular endothelial growth factor agents, reinforcing the fact that diabetic retinopathy is a multifactorial disease. Studies are still required to improve our understanding of how retinal structure correlates with visual function. It is hoped that these will lead to better characterization of the disease phenotype based on treatment responses to different agents and allow an algorithm to be developed that will guide the management of diabetic retinopathy and diabetic macular oedema at different stages of severity.

Objectives To evaluate the efficacy and safety of intravitreous bevacizumab injections for the treatment of neovascular age related macular degeneration.

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