Myopia (also known as short sightedness) is a condition where the eyeball grows to a greater length than usual, and this can result in stretching of the retina. People with high myopia, are more prone to a weakness in the retinal tissue and underlying blood supply. This can cause abnormal blood vessels to develop from beneath the retina, which is known as choroidal neovascularisation (CNV).
This can cause bleeding and leaking of fluid from these abnormal blood vessels and degeneration of the retina, leading to reduced vision and distortion of images I.
Image 1 – Retinal bleeding at the macula in a patient with high myopia
AntiVEGF therapy has been shown to be very effective preventing further loss of vision and improving vision, by targeting the abnormal CNV. Patients may require a course of injections.