The wet form is caused by the growth of abnormal blood vessels beneath the central part of the retina. These abnormal vessels leak fluid and blood under the retina, causing a serous or hemorrhagic elevation to form. This leads to scar tissue and a large blind spot. The macula is responsible for what we often call 'straight ahead' vision. Yale was one of the 30 centers that participated in the clinical trials of this treatment.
Patients can return home and to normal activates immediately after treatment.
Given that the drug is light activated, patients are instructed to avoid direct or bright light exposure for five days following treatment.