>Both patients in the trial had "wet" age-related macular degeneration. This form of the disease is caused by abnormal blood vessels growing through the retinal pigment epithelium and damaging the macula. Dry age-related macular degeneration is more common and caused by the retinal pigment epithelium breaking down.
If this is a viable treatment method, it would help only the minority of macular degeration patients.
If I understand correctly, "wet" progresses much more rapidly than "dry". You're much more likely to unexpectedly lose your sight to "wet" (as opposed to just slowly having your sight deteriorate).
Feel free to correct if I'm wrong. I'm not an expert. This is just what I've gathered from having two family members with it.
If this is a viable treatment method, it would help only the minority of macular degeration patients.