Wet macular degeneration (also known as wet or neovascular macular degeneration) is a form of macular degeneration characterised by rapid onset, with significant vision loss occurring within a year of the condition developing. It is caused by a process known as choroidal neovascularisation, which refers to the growth of abnormal blood vessels around the macular. Only around 10% of macular degeneration is neovascular in origin. However, this form of the condition accounts for some 90% of macular degeneration-related blindness.

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