This document discusses the debate around using the less expensive drug bevacizumab (Avastin) versus the more expensive drug ranibuzimab (Lucentis) to treat age-related macular degeneration. While bevacizumab costs about 12 times less than ranibuzimab, its manufacturers Roche and Novartis actively discourage its use for macular degeneration to protect sales of ranibuzumab. However, publicly funded studies found the drugs have similar effectiveness and safety. The document calls for clear guidance supporting use of bevacizumab when evidence demonstrates its benefits, and better coordination among health technology assessors globally.