What is myopia?
Myopia (also known as being short-sighted) is when vision at a distance becomes difficult and a spectacle prescription is required. This is usually because the eye ball has grown too long which causes the light to be focused incorrectly within the eye rather than on the retina.
All myopic prescriptions can cause changes to the physical structures within the eye and subsequently increase the risk of future eye disease, this is worse with higher prescriptions. Therefore, it is now seen as important to prevent the progression of myopia and aim to keep the prescription as low as possible from a young age.