Photodynamic therapy involves the injection of a light-sensitive medicine called verteporfin into a vein in the arm.

BBC: Age-related macular degeneration

The man is Damien (Cillian Murphy), a thoughtful, sensitive young man who had planned to go to London to practice medicine.

NEWSWEEK: Culture

"It's great that they're identifying a potential problem, but to have it as a lead article in the New England Journal is not sensitive to the consequences" for patients who might stop taking their medicine, says Stuart Weiss, an NYU endocrinologist.

FORBES: Open-Source Drug Safety?