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There is also a new drug target: a substance called platelet-derived growth factor that causes abnormal vessel growth as well. Combination drug treatments may be more effective against macular degeneration, Dr. Gentile said. Please verify you're not a robot by clicking the box.
Macular degeneration destroys cells called retinal pigment epithelium, or RPE, a key component of sharp, detailed central vision. Freeman had the most common form, known as dry macular degeneration. The treatments for dry macular degeneration are really few, if any. There are no approved treatments for macular degeneration, said Dr. Steven Schwartz, an UCLA eye surgeon. Dr. Schwartz modified human embryonic stem cells in the lab and turned them into the RPE cells that were needed. He transplanted those new cells by injection into one of Sue Freeman's eyes.