Peter Whoriskey and Dan Keating
Washington Post 
December 9, 2013
The two drugs have been declared equivalently miraculous. Tested side by side in six major trials, both prevent blindness in a common old-age affliction. Biologically, they are cousins. They’re even made by the same company.
But one holds a clear price advantage.
Avastin costs about $50 per injection.
Lucentis costs about $2,000 per injection.
Doctors choose the more expensive drug more than half a million times every year, a choice that costs the Medicare program, the largest single customer, an extra $1 billion or more annually.