I don't know if a British paper can be posted here so this is the teaser and a link.
Better results for 1 (one) percent of the cost of Lucentis. Read the article ... really shows where the drug companies hearts are... if they had one.
"A major drug company is blocking access to a medicine that is cheaply and effectively saving thousands of people from going blind because it wants to launch a more expensive product on the market.
Ophthalmologists around the world, on their own initiative, are injecting tiny quantities of a colon cancer drug called Avastin into the eyes of patients with wet macular degeneration, a common condition of older age that can lead to severely impaired eyesight and blindness. They report remarkable success at very low cost because one phial can be split and used for dozens of patients." article
for later reading